blocks|key|114601|text|Firebase+Cloud+Messaging有一个服务器端API，您可以调用它来发送消息。参见https://firebase.google.com/docs/cloud-messaging/server。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|114602|发送消息可以像使用curl调用HTTP端点一样简单。请参阅https://firebase.google.com/docs/cloud-messaging/server#implementing-http-connection-server-protocol|style|CODE|114603|curl+-X+POST+--header+"Authorization:+key=<API_ACCESS_KEY>"+\
++++--Header+"Content-Type:+application/json"+\
++++https://fcm.googleapis.com/fcm/send+\
++++-d+"{\"to\":\"<YOUR_DEVICE_ID_TOKEN>\",\"notification\":{\"title\":\"Hello\",\"body\":\"Yellow\"}}"|code-block|syntax|javascript|114604|entityMap|0|LINK|mutability|MUTABLE|url|https://firebase.google.com/docs/cloud-messaging/server|1|https://firebase.google.com/docs/cloud-messaging/server#implementing-http-connection-server-protocol^0|1D|1J|0|0|9|4|T|2S|1|0|0^^$0|@$1|2|3|4|5|6|7|W|8|@]|9|@$A|X|B|Y|1|Z]]|C|$]]|$1|D|3|E|5|6|7|10|8|@$A|11|B|12|F|G]]|9|@$A|13|B|14|1|15]]|C|$]]|$1|H|3|I|5|J|7|16|8|@]|9|@]|C|$K|L]]|$1|M|3|-4|5|6|7|17|8|@]|9|@]|C|$]]]|N|$O|$5|P|Q|R|C|$S|T]]|U|$5|P|Q|R|C|$S|V]]]]

Firebase Cloud Messaging has a server-side APIs that you can call to send messages. See <a href="https://firebase.google.com/docs/cloud-messaging/server" rel="noreferrer">https://firebase.google.com/docs/cloud-messaging/server</a>.
Sending a message can be as simple as using <code>curl</code> to call a HTTP end-point. See <a href="https://firebase.google.com/docs/cloud-messaging/server#implementing-http-connection-server-protocol" rel="noreferrer">https://firebase.google.com/docs/cloud-messaging/server#implementing-http-connection-server-protocol</a>
<pre><code>curl -X POST --header &quot;Authorization: key=&lt;API_ACCESS_KEY&gt;&quot; \
 --Header &quot;Content-Type: application/json&quot; \
 https://fcm.googleapis.com/fcm/send \
 -d &quot;{\&quot;to\&quot;:\&quot;&lt;YOUR_DEVICE_ID_TOKEN&gt;\&quot;,\&quot;notification\&quot;:{\&quot;title\&quot;:\&quot;Hello\&quot;,\&quot;body\&quot;:\&quot;Yellow\&quot;}}&quot;
</code></pre>

blocks|key|2875367|text|正如Frank提到的，您可以使用Firebase+Cloud+Messaging+(FCM)+HTTP+API从您自己的后端触发推送通知。但是你不能|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2875368|2875369|向Firebase用户标识符(UID)发送通知，|ordered-list-item|2875370|向用户段发送通知(像在用户控制台上一样针对属性和事件)。|2875371|2875372|意味着:您必须自己存储FCM/GCM注册ids+(推送令牌)或使用FCM主题订阅用户。还请记住，Firebase通知的API不是Firebase+FCM，它是一个没有调度或开放速率分析的低级API。Firebase通知建立在FCM之上。|2875373|entityMap^0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|N|8|@]|9|@]|A|$]]|$1|C|3|D|5|E|7|O|8|@]|9|@]|A|$]]|$1|F|3|G|5|E|7|P|8|@]|9|@]|A|$]]|$1|H|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|R|8|@]|9|@]|A|$]]|$1|K|3|-4|5|6|7|S|8|@]|9|@]|A|$]]]|L|$]]

As mentioned by Frank, you can use Firebase Cloud Messaging (FCM) HTTP API to trigger push notification from your own back-end. But you won't be able to 

<ol>
<li>send notifications to a Firebase User Identifier (UID) and </li>
<li>send notifications to user segments (targeting properties &amp; events like you can on the user console).</li>
</ol>

Meaning: you'll have to store FCM/GCM registration ids (push tokens) yourself or use FCM topics to subscribe users. Keep also in mind that FCM is not an API for Firebase Notifications, it's a lower-level API without scheduling or open-rate analytics. Firebase Notifications is build on top on FCM.

blocks|key|114323|text|例如，您可以将PHP脚本用于Google+Cloud+Messaging+(GCM)。Firebase和它的控制台就在GCM之上。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|114324|我在github上找到了这个：https://gist.github.com/prime31/5675017|offset|length|114325|提示:这个PHP脚本产生一个android+notification。|114326|因此:如果你想在安卓系统中接收并显示通知，请阅读this+answer+from+Koot。|114327|entityMap|0|LINK|mutability|MUTABLE|url|https://gist.github.com/prime31/5675017|1|https://firebase.google.com/docs/cloud-messaging/http-server-ref#downstream-http-messages-json|2|https://stackoverflow.com/a/37471326/6161100^0|0|F|13|0|0|E|K|1|0|O|L|2|0^^$0|@$1|2|3|4|5|6|7|V|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|W|8|@]|9|@$D|X|E|Y|1|Z]]|A|$]]|$1|F|3|G|5|6|7|10|8|@]|9|@$D|11|E|12|1|13]]|A|$]]|$1|H|3|I|5|6|7|14|8|@]|9|@$D|15|E|16|1|17]]|A|$]]|$1|J|3|-4|5|6|7|18|8|@]|9|@]|A|$]]]|K|$L|$5|M|N|O|A|$P|Q]]|R|$5|M|N|O|A|$P|S]]|T|$5|M|N|O|A|$P|U]]]]

You can use for example a PHP script for Google Cloud Messaging (GCM). Firebase, and its console, is just on top of GCM.

I found this one on github:
<a href="https://gist.github.com/prime31/5675017" rel="nofollow noreferrer">https://gist.github.com/prime31/5675017</a>

Hint: This PHP script results in a <a href="https://firebase.google.com/docs/cloud-messaging/http-server-ref#downstream-http-messages-json" rel="nofollow noreferrer">android notification</a>.

Therefore: Read <a href="https://stackoverflow.com/a/37471326/6161100">this answer from Koot</a> if you want to receive and show the notification in Android.

blocks|key|2664562|text|使用服务api。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2664563|网址：https://fcm.googleapis.com/fcm/send|offset|length|style|CODE|2664564|方法类型：POST|2664565|标头：|2664566|Content-Type:+application/json
Authorization:+key=your+api+key|code-block|syntax|javascript|2664567|正文/有效负载：|2664568|{+"notification":+{
++++"title":+"Your+Title",
++++"text":+"Your+Text",
+++++"click_action":+"OPEN_ACTIVITY_1"+//+should+match+to+your+intent+filter
++},
++++"data":+{
++++"keyname":+"any+value+"+//you+can+get+this+data+as+extras+in+your+activity+and+this+data+is+optional
++++},
++"to"+:+"to_id(firebase+refreshedToken)"
}+|2664569|在你的应用中，你可以在你要调用的activity中添加下面的代码：|2664570|<intent-filter>
++++<action+android:name="OPEN_ACTIVITY_1"+/>
++++<category+android:name="android.intent.category.DEFAULT"+/>
</intent-filter>|2664571|也可以在Firebase+onMessageReceived+not+called+when+app+in+background上查看答案|2664572|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/questions/37358462/firebase-onmessagereceived-not-called-when-app-in-background/37599088#37599088^0|0|3|Z|0|5|4|0|0|0|0|0|0|0|4|1O|0|0^^$0|@$1|2|3|4|5|6|7|18|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|19|8|@$D|1A|E|1B|F|G]]|9|@]|A|$]]|$1|H|3|I|5|6|7|1C|8|@$D|1D|E|1E|F|G]]|9|@]|A|$]]|$1|J|3|K|5|6|7|1F|8|@]|9|@]|A|$]]|$1|L|3|M|5|N|7|1G|8|@]|9|@]|A|$O|P]]|$1|Q|3|R|5|6|7|1H|8|@]|9|@]|A|$]]|$1|S|3|T|5|N|7|1I|8|@]|9|@]|A|$O|P]]|$1|U|3|V|5|6|7|1J|8|@]|9|@]|A|$]]|$1|W|3|X|5|N|7|1K|8|@]|9|@]|A|$O|P]]|$1|Y|3|Z|5|6|7|1L|8|@]|9|@$D|1M|E|1N|1|1O]]|A|$]]|$1|10|3|-4|5|6|7|1P|8|@]|9|@]|A|$]]]|11|$12|$5|13|14|15|A|$16|17]]]]

Use a service api.

URL: <code>https://fcm.googleapis.com/fcm/send</code>

Method Type: <code>POST</code>

Headers: 

<pre><code>Content-Type: application/json
Authorization: key=your api key
</code></pre>

Body/Payload:

<pre><code>{ "notification": {
 "title": "Your Title",
 "text": "Your Text",
 "click_action": "OPEN_ACTIVITY_1" // should match to your intent filter
 },
 "data": {
 "keyname": "any value " //you can get this data as extras in your activity and this data is optional
 },
 "to" : "to_id(firebase refreshedToken)"
} 
</code></pre>

And with this in your app you can add below code in your activity to be called:

<pre><code>&lt;intent-filter&gt;
 &lt;action android:name="OPEN_ACTIVITY_1" /&gt;
 &lt;category android:name="android.intent.category.DEFAULT" /&gt;
&lt;/intent-filter&gt;
</code></pre>

Also check the answer on <a href="https://stackoverflow.com/questions/37358462/firebase-onmessagereceived-not-called-when-app-in-background/37599088#37599088">Firebase onMessageReceived not called when app in background</a>

blocks|key|2875445|text|首先，你需要从android获取一个令牌，然后你可以调用这个php代码，你甚至可以为你的应用程序中的进一步操作发送数据。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2875446|+<?php

//+Call+.php?Action=M&t=title&m=message&r=token
$action=$_GET["Action"];


switch+($action)+{
++++Case+"M":
+++++++++$r=$_GET["r"];
++++++++$t=$_GET["t"];
++++++++$m=$_GET["m"];

++++++++$j=json_decode(notify($r,+$t,+$m));

++++++++$succ=0;
++++++++$fail=0;

++++++++$succ=$j->{'success'};
++++++++$fail=$j->{'failure'};

++++++++print+"Success:+"+.+$succ+.+" ";
++++++++print+"Fail+++:+"+.+$fail+.+" ";

++++++++break;


default:
++++++++print+json_encode+("Error:+Function+not+defined+->"+.+$action);
}

function+notify+($r,+$t,+$m)
++++{
++++//+API+access+key+from+Google+API's+Console
++++++++if+(!defined('API_ACCESS_KEY'))+define(+'API_ACCESS_KEY',+'Insert+here'+);
++++++++$tokenarray+=+array($r);
++++++++//+prep+the+bundle
++++++++$msg+=+array
++++++++(
++++++++++++'title'+++++=>+$t,
++++++++++++'message'+++++=>+$m,
+++++++++++'MyKey1'+++++++=>+'MyData1',
++++++++++++'MyKey2'+++++++=>+'MyData2',+

++++++++);
++++++++$fields+=+array
++++++++(
++++++++++++'registration_ids'+++++=>+$tokenarray,
++++++++++++'data'++++++++++++=>+$msg
++++++++);

++++++++$headers+=+array
++++++++(
++++++++++++'Authorization:+key='+.+API_ACCESS_KEY,
++++++++++++'Content-Type:+application/json'
++++++++);

++++++++$ch+=+curl_init();
++++++++curl_setopt(+$ch,CURLOPT_URL,+'fcm.googleapis.com/fcm/send'+);
++++++++curl_setopt(+$ch,CURLOPT_POST,+true+);
++++++++curl_setopt(+$ch,CURLOPT_HTTPHEADER,+$headers+);
++++++++curl_setopt(+$ch,CURLOPT_RETURNTRANSFER,+true+);
++++++++curl_setopt(+$ch,CURLOPT_SSL_VERIFYPEER,+false+);
++++++++curl_setopt(+$ch,CURLOPT_POSTFIELDS,+json_encode(+$fields+)+);
++++++++$result+=+curl_exec($ch+);
++++++++curl_close(+$ch+);
++++++++return+$result;
++++}


?>|code-block|syntax|javascript|2875447|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

First you need to get a token from android and then you can call this php code and you can even send data for further actions in your app. 

<pre><code> &lt;?php

// Call .php?Action=M&amp;t=title&amp;m=message&amp;r=token
$action=$_GET["Action"];


switch ($action) {
 Case "M":
 $r=$_GET["r"];
 $t=$_GET["t"];
 $m=$_GET["m"];

 $j=json_decode(notify($r, $t, $m));

 $succ=0;
 $fail=0;

 $succ=$j-&gt;{'success'};
 $fail=$j-&gt;{'failure'};

 print "Success: " . $succ . "&lt;br&gt;";
 print "Fail : " . $fail . "&lt;br&gt;";

 break;


default:
 print json_encode ("Error: Function not defined -&gt;" . $action);
}

function notify ($r, $t, $m)
 {
 // API access key from Google API's Console
 if (!defined('API_ACCESS_KEY')) define( 'API_ACCESS_KEY', 'Insert here' );
 $tokenarray = array($r);
 // prep the bundle
 $msg = array
 (
 'title' =&gt; $t,
 'message' =&gt; $m,
 'MyKey1' =&gt; 'MyData1',
 'MyKey2' =&gt; 'MyData2', 

 );
 $fields = array
 (
 'registration_ids' =&gt; $tokenarray,
 'data' =&gt; $msg
 );

 $headers = array
 (
 'Authorization: key=' . API_ACCESS_KEY,
 'Content-Type: application/json'
 );

 $ch = curl_init();
 curl_setopt( $ch,CURLOPT_URL, 'fcm.googleapis.com/fcm/send' );
 curl_setopt( $ch,CURLOPT_POST, true );
 curl_setopt( $ch,CURLOPT_HTTPHEADER, $headers );
 curl_setopt( $ch,CURLOPT_RETURNTRANSFER, true );
 curl_setopt( $ch,CURLOPT_SSL_VERIFYPEER, false );
 curl_setopt( $ch,CURLOPT_POSTFIELDS, json_encode( $fields ) );
 $result = curl_exec($ch );
 curl_close( $ch );
 return $result;
 }


?&gt;
</code></pre>

blocks|key|114671|text|使用curl的|type|unstyled|depth|inlineStyleRanges|entityRanges|data|114672|+示例|blockquote|offset|length|style|BOLD|114673|114674|114675|向特定设备发送消息|114676|要向特定设备发送消息，请将设置为特定应用程序实例的注册令牌|114677|curl+-H+"Content-type:+application/json"+-H+"Authorization:key=<Your+Api+key>"++-X+POST+-d+'{+"data":+{+"score":+"5x1","time":+"15:10"},"to"+:+"<registration+token>"}'+https://fcm.googleapis.com/fcm/send|code-block|syntax|javascript|114678|向主题发送消息|114679|这里的主题是:/+topic+/foo-bar|114680|curl+-H+"Content-type:+application/json"+-H+"Authorization:key=<Your+Api+key>"++-X+POST+-d+'{+"to":+"/topics/foo-bar","data":+{+"message":+"This+is+a+Firebase+Cloud+Messaging+Topic+Message!"}}'+https://fcm.googleapis.com/fcm/send|114681|向设备组发送消息|114682|向设备组发送消息与向单个设备发送消息非常相似。将to参数设置为设备组的唯一通知密钥|114683|curl+-H+"Content-type:+application/json"+-H+"Authorization:key=<Your+Api+key>"++-X+POST+-d+'{"to":+"<aUniqueKey>","data":+{"hello":+"This+is+a+Firebase+Cloud+Messaging+Device+Group+Message!"}}'+https://fcm.googleapis.com/fcm/send|114684|使用服务的|114685|+示例|114686|114687|114688|接口地址：https://fcm.googleapis.com/fcm/send|CODE|114689|标头|114690|Content-type:+application/json
Authorization:key=<Your+Api+key>|114691|请求方法：POST|114692|请求正文|114693|发送到特定设备的消息|114694|{
++"data":+{
++++"score":+"5x1",
++++"time":+"15:10"
++},
++"to":+"<registration+token>"
}|114695|主题的消息|114696|{
++"to":+"/topics/foo-bar",
++"data":+{
++++"message":+"This+is+a+Firebase+Cloud+Messaging+Topic+Message!"
++}
}|114697|发送到设备组的消息|114698|{
++"to":+"<aUniqueKey>",
++"data":+{
++++"hello":+"This+is+a+Firebase+Cloud+Messaging+Device+Group+Message!"
++}
}|114699|entityMap^0|0|1|2|0|0|0|0|9|0|0|T|0|0|0|7|0|0|N|0|0|0|8|0|0|15|0|0|0|5|0|1|2|0|0|0|0|14|5|Z|0|0|2|0|0|0|9|5|4|0|0|4|0|0|A|0|0|0|5|0|0|0|9|0|0^^$0|@$1|2|3|4|5|6|7|20|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|21|8|@$E|22|F|23|G|H]]|9|@]|A|$]]|$1|I|3|-4|5|6|7|24|8|@]|9|@]|A|$]]|$1|J|3|-4|5|6|7|25|8|@]|9|@]|A|$]]|$1|K|3|L|5|6|7|26|8|@$E|27|F|28|G|H]]|9|@]|A|$]]|$1|M|3|N|5|6|7|29|8|@$E|2A|F|2B|G|H]]|9|@]|A|$]]|$1|O|3|P|5|Q|7|2C|8|@]|9|@]|A|$R|S]]|$1|T|3|U|5|6|7|2D|8|@$E|2E|F|2F|G|H]]|9|@]|A|$]]|$1|V|3|W|5|6|7|2G|8|@$E|2H|F|2I|G|H]]|9|@]|A|$]]|$1|X|3|Y|5|Q|7|2J|8|@]|9|@]|A|$R|S]]|$1|Z|3|10|5|6|7|2K|8|@$E|2L|F|2M|G|H]]|9|@]|A|$]]|$1|11|3|12|5|6|7|2N|8|@$E|2O|F|2P|G|H]]|9|@]|A|$]]|$1|13|3|14|5|Q|7|2Q|8|@]|9|@]|A|$R|S]]|$1|15|3|16|5|6|7|2R|8|@$E|2S|F|2T|G|H]]|9|@]|A|$]]|$1|17|3|18|5|D|7|2U|8|@$E|2V|F|2W|G|H]]|9|@]|A|$]]|$1|19|3|-4|5|6|7|2X|8|@]|9|@]|A|$]]|$1|1A|3|-4|5|6|7|2Y|8|@]|9|@]|A|$]]|$1|1B|3|1C|5|6|7|2Z|8|@$E|30|F|31|G|H]|$E|32|F|33|G|1D]]|9|@]|A|$]]|$1|1E|3|1F|5|6|7|34|8|@$E|35|F|36|G|H]]|9|@]|A|$]]|$1|1G|3|1H|5|Q|7|37|8|@]|9|@]|A|$R|S]]|$1|1I|3|1J|5|6|7|38|8|@$E|39|F|3A|G|H]|$E|3B|F|3C|G|1D]]|9|@]|A|$]]|$1|1K|3|1L|5|6|7|3D|8|@$E|3E|F|3F|G|H]]|9|@]|A|$]]|$1|1M|3|1N|5|6|7|3G|8|@$E|3H|F|3I|G|H]]|9|@]|A|$]]|$1|1O|3|1P|5|Q|7|3J|8|@]|9|@]|A|$R|S]]|$1|1Q|3|1R|5|6|7|3K|8|@$E|3L|F|3M|G|H]]|9|@]|A|$]]|$1|1S|3|1T|5|Q|7|3N|8|@]|9|@]|A|$R|S]]|$1|1U|3|1V|5|6|7|3O|8|@$E|3P|F|3Q|G|H]]|9|@]|A|$]]|$1|1W|3|1X|5|Q|7|3R|8|@]|9|@]|A|$R|S]]|$1|1Y|3|-4|5|6|7|3S|8|@]|9|@]|A|$]]]|1Z|$]]

<blockquote>
 Examples using curl
</blockquote>

Send messages to specific devices

To send messages to specific devices, set the to the registration token for the specific app instance

<pre><code>curl -H "Content-type: application/json" -H "Authorization:key=&lt;Your Api key&gt;" -X POST -d '{ "data": { "score": "5x1","time": "15:10"},"to" : "&lt;registration token&gt;"}' https://fcm.googleapis.com/fcm/send
</code></pre>

Send messages to topics

here the topic is : /topics/foo-bar

<pre><code>curl -H "Content-type: application/json" -H "Authorization:key=&lt;Your Api key&gt;" -X POST -d '{ "to": "/topics/foo-bar","data": { "message": "This is a Firebase Cloud Messaging Topic Message!"}}' https://fcm.googleapis.com/fcm/send
</code></pre>

Send messages to device groups

Sending messages to a device group is very similar to sending messages to an individual device. Set the to parameter to the unique notification key for the device group

<pre><code>curl -H "Content-type: application/json" -H "Authorization:key=&lt;Your Api key&gt;" -X POST -d '{"to": "&lt;aUniqueKey&gt;","data": {"hello": "This is a Firebase Cloud Messaging Device Group Message!"}}' https://fcm.googleapis.com/fcm/send
</code></pre>

<blockquote>
 Examples using Service API
</blockquote>

API URL : <code>https://fcm.googleapis.com/fcm/send</code>

Headers

<pre><code>Content-type: application/json
Authorization:key=&lt;Your Api key&gt;
</code></pre>

Request Method : <code>POST</code>

Request Body 

Messages to specific devices

<pre><code>{
 "data": {
 "score": "5x1",
 "time": "15:10"
 },
 "to": "&lt;registration token&gt;"
}
</code></pre>

Messages to topics

<pre><code>{
 "to": "/topics/foo-bar",
 "data": {
 "message": "This is a Firebase Cloud Messaging Topic Message!"
 }
}
</code></pre>

Messages to device groups

<pre><code>{
 "to": "&lt;aUniqueKey&gt;",
 "data": {
 "hello": "This is a Firebase Cloud Messaging Device Group Message!"
 }
}
</code></pre>

blocks|key|2664610|text|这在使用CURL时有效|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2664611|function+sendGCM($message,+$id)+{


++++$url+=+'https://fcm.googleapis.com/fcm/send';

++++$fields+=+array+(
++++++++++++'registration_ids'+=>+array+(
++++++++++++++++++++$id
++++++++++++),
++++++++++++'data'+=>+array+(
++++++++++++++++++++"message"+=>+$message
++++++++++++)
++++);
++++$fields+=+json_encode+(+$fields+);

++++$headers+=+array+(
++++++++++++'Authorization:+key='+.+"YOUR_KEY_HERE",
++++++++++++'Content-Type:+application/json'
++++);

++++$ch+=+curl_init+();
++++curl_setopt+(+$ch,+CURLOPT_URL,+$url+);
++++curl_setopt+(+$ch,+CURLOPT_POST,+true+);
++++curl_setopt+(+$ch,+CURLOPT_HTTPHEADER,+$headers+);
++++curl_setopt+(+$ch,+CURLOPT_RETURNTRANSFER,+true+);
++++curl_setopt+(+$ch,+CURLOPT_POSTFIELDS,+$fields+);

++++$result+=+curl_exec+(+$ch+);
++++echo+$result;
++++curl_close+(+$ch+);
}

?>|code-block|syntax|javascript|2664612|$message是您要发送到设备的消息|offset|length|style|CODE|2664613|$id是设备注册令牌|BOLD|2664614|YOUR_KEY_HERE是您的服务器应用编程接口密钥(或传统服务器应用编程接口密钥)|2664615|entityMap^0|0|0|0|8|0|0|3|4|6|0|0|D|0^^$0|@$1|2|3|4|5|6|7|T|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|U|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|V|8|@$I|W|J|X|K|L]]|9|@]|A|$]]|$1|M|3|N|5|6|7|Y|8|@$I|Z|J|10|K|L]|$I|11|J|12|K|O]]|9|@]|A|$]]|$1|P|3|Q|5|6|7|13|8|@$I|14|J|15|K|L]]|9|@]|A|$]]|$1|R|3|-4|5|6|7|16|8|@]|9|@]|A|$]]]|S|$]]

This works using CURL

<pre><code>function sendGCM($message, $id) {


 $url = 'https://fcm.googleapis.com/fcm/send';

 $fields = array (
 'registration_ids' =&gt; array (
 $id
 ),
 'data' =&gt; array (
 "message" =&gt; $message
 )
 );
 $fields = json_encode ( $fields );

 $headers = array (
 'Authorization: key=' . "YOUR_KEY_HERE",
 'Content-Type: application/json'
 );

 $ch = curl_init ();
 curl_setopt ( $ch, CURLOPT_URL, $url );
 curl_setopt ( $ch, CURLOPT_POST, true );
 curl_setopt ( $ch, CURLOPT_HTTPHEADER, $headers );
 curl_setopt ( $ch, CURLOPT_RETURNTRANSFER, true );
 curl_setopt ( $ch, CURLOPT_POSTFIELDS, $fields );

 $result = curl_exec ( $ch );
 echo $result;
 curl_close ( $ch );
}

?&gt;
</code></pre>

<code>$message</code> is your message to send to the device

<code>$id</code> is the devices registration token

<code>YOUR_KEY_HERE</code> is your Server API Key (or Legacy Server API Key)

blocks|key|2664679|text|如果你想从android发送推送通知，请查看我的博客帖子|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2664680|Send+Push+Notifications+from+1+android+phone+to+another+with+out+server.|offset|length|2664681|发送推送通知只是一个对https://fcm.googleapis.com/fcm/send的post请求|2664682|使用volley的代码片段：|2664683|++++JSONObject+json+=+new+JSONObject();
+try+{
+JSONObject+userData=new+JSONObject();
+userData.put("title","your+title");
+userData.put("body","your+body");

json.put("data",userData);
json.put("to",+receiverFirebaseToken);
+}
+catch+(JSONException+e)+{
+e.printStackTrace();
+}

JsonObjectRequest+jsonObjectRequest+=+new+JsonObjectRequest("https://fcm.googleapis.com/fcm/send",+json,+new+Response.Listener<JSONObject>()+{
+@Override
+public+void+onResponse(JSONObject+response)+{

Log.i("onResponse",+""+%2B+response.toString());
+}
+},+new+Response.ErrorListener()+{
+@Override
+public+void+onErrorResponse(VolleyError+error)+{

}
+})+{
+@Override
+public+Map<String,+String>+getHeaders()+throws+AuthFailureError+{

Map<String,+String>+params+=+new+HashMap<String,+String>();
+params.put("Authorizationey="+%2B+SERVER_API_KEY);
+params.put("Content-Typepplication/json");
+return+params;
+}
+};
+MySingleton.getInstance(context).addToRequestQueue(jsonObjectRequest);|code-block|syntax|javascript|2664684|我建议你们所有人查看我的博客帖子，了解完整的细节。|2664685|entityMap|0|LINK|mutability|MUTABLE|url|https://androidredman.wordpress.com/2017/08/27/send-push-notifications-from-1-android-phone-to-another-with-out-server/|1|https://fcm.googleapis.com/fcm/send^0|0|0|20|0|0|B|Z|1|0|0|0|0^^$0|@$1|2|3|4|5|6|7|10|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|11|8|@]|9|@$D|12|E|13|1|14]]|A|$]]|$1|F|3|G|5|6|7|15|8|@]|9|@$D|16|E|17|1|18]]|A|$]]|$1|H|3|I|5|6|7|19|8|@]|9|@]|A|$]]|$1|J|3|K|5|L|7|1A|8|@]|9|@]|A|$M|N]]|$1|O|3|P|5|6|7|1B|8|@]|9|@]|A|$]]|$1|Q|3|-4|5|6|7|1C|8|@]|9|@]|A|$]]]|R|$S|$5|T|U|V|A|$W|X]]|Y|$5|T|U|V|A|$W|Z]]]]

If you want to send push notifications from android check out my blog post 

<a href="https://androidredman.wordpress.com/2017/08/27/send-push-notifications-from-1-android-phone-to-another-with-out-server/" rel="nofollow noreferrer">Send Push Notifications from 1 android phone to another with out server.</a>

sending push notification is nothing but a post request to <a href="https://fcm.googleapis.com/fcm/send" rel="nofollow noreferrer">https://fcm.googleapis.com/fcm/send</a>

code snippet using volley:

<pre><code> JSONObject json = new JSONObject();
 try {
 JSONObject userData=new JSONObject();
 userData.put("title","your title");
 userData.put("body","your body");

json.put("data",userData);
json.put("to", receiverFirebaseToken);
 }
 catch (JSONException e) {
 e.printStackTrace();
 }

JsonObjectRequest jsonObjectRequest = new JsonObjectRequest("https://fcm.googleapis.com/fcm/send", json, new Response.Listener&lt;JSONObject&gt;() {
 @Override
 public void onResponse(JSONObject response) {

Log.i("onResponse", "" + response.toString());
 }
 }, new Response.ErrorListener() {
 @Override
 public void onErrorResponse(VolleyError error) {

}
 }) {
 @Override
 public Map&lt;String, String&gt; getHeaders() throws AuthFailureError {

Map&lt;String, String&gt; params = new HashMap&lt;String, String&gt;();
 params.put("Authorizationey=" + SERVER_API_KEY);
 params.put("Content-Typepplication/json");
 return params;
 }
 };
 MySingleton.getInstance(context).addToRequestQueue(jsonObjectRequest);
</code></pre>

I suggest you all to check out my blog post for complete details.

blocks|key|114737|text|通知或数据消息可以使用FCM+HTTP+v1+API端点发送到firebase云消息服务器。https://fcm.googleapis.com/v1/projects/zoftino-stores/messages:send。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|114738|您需要使用Firebase控制台生成并下载服务账号的私钥，并使用google+api客户端库生成访问密钥。使用任何http库将消息发布到上述端点，下面的代码显示了使用OkHTTP发布消息。您可以在firebase+cloud+messaging+and+sending+messages+to+multiple+clients+using+fcm+topic+example上找到完整的服务器端和客户端代码|114739|如果需要发送特定的客户端消息，需要获取客户端的firebase注册密钥，参见sending+client+or+device+specific+messages+to+FCM+server+example|114740|String+SCOPE+=+"https://www.googleapis.com/auth/firebase.messaging";
String+FCM_ENDPOINT
+++++=+"https://fcm.googleapis.com/v1/projects/zoftino-stores/messages:send";

GoogleCredential+googleCredential+=+GoogleCredential
++++.fromStream(new+FileInputStream("firebase-private-key.json"))
++++.createScoped(Arrays.asList(SCOPE));
googleCredential.refreshToken();
String+token+=+googleCredential.getAccessToken();



final+MediaType+mediaType+=+MediaType.parse("application/json");

OkHttpClient+httpClient+=+new+OkHttpClient();

Request+request+=+new+Request.Builder()
++++.url(FCM_ENDPOINT)
++++.addHeader("Content-Type",+"application/json;+UTF-8")
++++.addHeader("Authorization",+"Bearer+"+%2B+token)
++++.post(RequestBody.create(mediaType,+jsonMessage))
++++.build();


Response+response+=+httpClient.newCall(request).execute();
if+(response.isSuccessful())+{
++++log.info("Message+sent+to+FCM+server");
}|code-block|syntax|javascript|114741|entityMap|0|LINK|mutability|MUTABLE|url|https://fcm.googleapis.com/v1/projects/zoftino-stores/messages:send|1|http://www.zoftino.com/android-notification-data-messages-from-app-server-using-firebase-cloud-messaging|2|http://www.zoftino.com/sending-device-specific-push-notification-message-using-firebase-cloud-messaging^0|1A|1V|0|0|2Q|2H|1|0|12|1S|2|0|0^^$0|@$1|2|3|4|5|6|7|Y|8|@]|9|@$A|Z|B|10|1|11]]|C|$]]|$1|D|3|E|5|6|7|12|8|@]|9|@$A|13|B|14|1|15]]|C|$]]|$1|F|3|G|5|6|7|16|8|@]|9|@$A|17|B|18|1|19]]|C|$]]|$1|H|3|I|5|J|7|1A|8|@]|9|@]|C|$K|L]]|$1|M|3|-4|5|6|7|1B|8|@]|9|@]|C|$]]]|N|$O|$5|P|Q|R|C|$S|T]]|U|$5|P|Q|R|C|$S|V]]|W|$5|P|Q|R|C|$S|X]]]]

Notification or data message can be sent to firebase base cloud messaging server using FCM HTTP v1 API endpoint.
<a href="https://fcm.googleapis.com/v1/projects/zoftino-stores/messages:send" rel="nofollow noreferrer">https://fcm.googleapis.com/v1/projects/zoftino-stores/messages:send</a>.

You need to generate and download private key of service account using Firebase console and generate access key using google api client library. Use any http library to post message to above end point, below code shows posting message using OkHTTP. You can find complete server side and client side code at <a href="http://www.zoftino.com/android-notification-data-messages-from-app-server-using-firebase-cloud-messaging" rel="nofollow noreferrer">firebase cloud messaging and sending messages to multiple clients using fcm topic example</a>

If a specific client message needs to sent, you need to get firebase registration key of the client, see <a href="http://www.zoftino.com/sending-device-specific-push-notification-message-using-firebase-cloud-messaging" rel="nofollow noreferrer">sending client or device specific messages to FCM server example</a>

<pre><code>String SCOPE = "https://www.googleapis.com/auth/firebase.messaging";
String FCM_ENDPOINT
 = "https://fcm.googleapis.com/v1/projects/zoftino-stores/messages:send";

GoogleCredential googleCredential = GoogleCredential
 .fromStream(new FileInputStream("firebase-private-key.json"))
 .createScoped(Arrays.asList(SCOPE));
googleCredential.refreshToken();
String token = googleCredential.getAccessToken();



final MediaType mediaType = MediaType.parse("application/json");

OkHttpClient httpClient = new OkHttpClient();

Request request = new Request.Builder()
 .url(FCM_ENDPOINT)
 .addHeader("Content-Type", "application/json; UTF-8")
 .addHeader("Authorization", "Bearer " + token)
 .post(RequestBody.create(mediaType, jsonMessage))
 .build();


Response response = httpClient.newCall(request).execute();
if (response.isSuccessful()) {
 log.info("Message sent to FCM server");
}
</code></pre>

blocks|key|116915|text|使用Firebase控制台，您可以通过CURL或PHP根据应用程序package.But向所有用户发送消息，这是不可能的。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|116916|通过API，您可以向特定的设备ID发送通知，也可以将通知发送给已订阅的用户到已选择的主题或已订阅的主题用户。|116917|Get+a+view+on+following+link.+It+will+help+you.
https://firebase.google.com/docs/cloud-messaging/send-message|code-block|syntax|javascript|116918|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|L|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|M|8|@]|9|@]|A|$G|H]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

Using Firebase Console you can send message to all users based on application package.But with CURL or PHP API its not possible.

Through API You can send notification to specific device ID or subscribed users to selected topic or subscribed topic users. 

<pre><code>Get a view on following link. It will help you.
https://firebase.google.com/docs/cloud-messaging/send-message
</code></pre>

blocks|key|2875637|text|或者你可以使用Firebase云函数，对我来说，这是实现推送通知的更简单的方法。firebase/functions-samples|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|2875638|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/firebase/functions-samples/tree/master/fcm-notifications^0|14|Q|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

Or you can use Firebase cloud functions, which is for me the easier way to implement your push notifications.
<a href="https://github.com/firebase/functions-samples/tree/master/fcm-notifications" rel="nofollow noreferrer">firebase/functions-samples</a>

blocks|key|2664766|text|如果你正在使用PHP，我推荐使用PHP+SDK+for+Firebase：Firebase+Admin+SDK。要进行简单的配置，您可以执行以下步骤：|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|2664767|从Firebase+(Initialize+the+sdk)获取项目凭证json文件，并将其包含在您的项目中。|2664768|在您的项目中安装SDK。我使用composer：|2664769|composer+require+kreait/firebase-php+%5E4.35|code-block|syntax|javascript|2664770|尝试SDK文档中Cloud+Messaging+session中的任何示例：|2664771|use+Kreait\Firebase;
use+Kreait\Firebase\Messaging\CloudMessage;

$messaging+=+(new+Firebase\Factory())
->withServiceAccount('/path/to/firebase_credentials.json')
->createMessaging();

$message+=+CloudMessage::withTarget(/*+see+sections+below+*/)
++++->withNotification(Notification::create('Title',+'Body'))
++++->withData(['key'+=>+'value']);

$messaging->send($message);|2664772|entityMap|0|LINK|mutability|MUTABLE|url|https://firebase-php.readthedocs.io/en/latest/overview.html|1|https://firebase.google.com/docs/admin/setup#initialize_the_sdk|2|https://firebase-php.readthedocs.io/en/latest/cloud-messaging.html#cloud-messaging^0|11|I|0|0|B|I|1|0|0|0|8|N|2|0|0^^$0|@$1|2|3|4|5|6|7|12|8|@]|9|@$A|13|B|14|1|15]]|C|$]]|$1|D|3|E|5|6|7|16|8|@]|9|@$A|17|B|18|1|19]]|C|$]]|$1|F|3|G|5|6|7|1A|8|@]|9|@]|C|$]]|$1|H|3|I|5|J|7|1B|8|@]|9|@]|C|$K|L]]|$1|M|3|N|5|6|7|1C|8|@]|9|@$A|1D|B|1E|1|1F]]|C|$]]|$1|O|3|P|5|J|7|1G|8|@]|9|@]|C|$K|L]]|$1|Q|3|-4|5|6|7|1H|8|@]|9|@]|C|$]]]|R|$S|$5|T|U|V|C|$W|X]]|Y|$5|T|U|V|C|$W|Z]]|10|$5|T|U|V|C|$W|11]]]]

If you're using PHP, I recommend using the PHP SDK for Firebase: <a href="https://firebase-php.readthedocs.io/en/latest/overview.html" rel="nofollow noreferrer">Firebase Admin SDK</a>. For an easy configuration you can follow these steps:

Get the project credentials json file from Firebase (<a href="https://firebase.google.com/docs/admin/setup#initialize_the_sdk" rel="nofollow noreferrer">Initialize the sdk</a>) and include it in your project.

Install the SDK in your project. I use composer:

<pre><code>composer require kreait/firebase-php ^4.35
</code></pre>

Try any example from the <a href="https://firebase-php.readthedocs.io/en/latest/cloud-messaging.html#cloud-messaging" rel="nofollow noreferrer">Cloud Messaging session</a> in the SDK documentation:

<pre><code>use Kreait\Firebase;
use Kreait\Firebase\Messaging\CloudMessage;

$messaging = (new Firebase\Factory())
-&gt;withServiceAccount('/path/to/firebase_credentials.json')
-&gt;createMessaging();

$message = CloudMessage::withTarget(/* see sections below */)
 -&gt;withNotification(Notification::create('Title', 'Body'))
 -&gt;withData(['key' =&gt; 'value']);

$messaging-&gt;send($message);
</code></pre>

blocks|key|2664874|text|this+link的这个解决方案对我帮助很大。你可以去看看。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|2664875|包含这些指令行curl.php文件可以正常工作。|2664876|<?php+
//+Server+key+from+Firebase+Console+define(+'API_ACCESS_KEY',+'AAAA----FE6F'+);
$data+=+array("to"+=>+"cNf2---6Vs9",+"notification"+=>+array(+"title"+=>+"Shareurcodes.com",+"body"+=>+"A+Code+Sharing+Blog!","icon"+=>+"icon.png",+"click_action"+=>+"http://shareurcodes.com"));
$data_string+=+json_encode($data);
echo+"The+Json+Data+:+".$data_string;
$headers+=+array+(+'Authorization:+key='+.+API_ACCESS_KEY,+'Content-Type:+application/json'+);
$ch+=+curl_init();+curl_setopt(+$ch,CURLOPT_URL,+'https://fcm.googleapis.com/fcm/send'+);
curl_setopt(+$ch,CURLOPT_POST,+true+);
curl_setopt(+$ch,CURLOPT_HTTPHEADER,+$headers+);
curl_setopt(+$ch,CURLOPT_RETURNTRANSFER,+true+);
curl_setopt(+$ch,CURLOPT_POSTFIELDS,+$data_string);
$result+=+curl_exec($ch);
curl_close+($ch);
echo+"&nbsp;";
echo+"The+Result+:+".$result;|code-block|syntax|javascript|2664877|记住you+need+to+execute+curl.php+file+using+another+browser+ie+not+from+the+browser+that+is+used+to+get+the+user+token.+You+can+see+notification+only+if+you+are+browsing+another+website.|style|CODE|2664878|entityMap|0|LINK|mutability|MUTABLE|url|https://www.ma-no.org/en/programming/php/send-push-notification-to-users-using-firebase-messaging-service-in-php^0|0|9|0|0|0|0|2|52|0^^$0|@$1|2|3|4|5|6|7|W|8|@]|9|@$A|X|B|Y|1|Z]]|C|$]]|$1|D|3|E|5|6|7|10|8|@]|9|@]|C|$]]|$1|F|3|G|5|H|7|11|8|@]|9|@]|C|$I|J]]|$1|K|3|L|5|6|7|12|8|@$A|13|B|14|M|N]]|9|@]|C|$]]|$1|O|3|-4|5|6|7|15|8|@]|9|@]|C|$]]]|P|$Q|$5|R|S|T|C|$U|V]]]]

this solution from <a href="https://www.ma-no.org/en/programming/php/send-push-notification-to-users-using-firebase-messaging-service-in-php" rel="noreferrer">this link</a> helped me a lot. you can check it out.

The curl.php file with those line of instruction can work.

<pre><code>&lt;?php 
// Server key from Firebase Console define( 'API_ACCESS_KEY', 'AAAA----FE6F' );
$data = array("to" =&gt; "cNf2---6Vs9", "notification" =&gt; array( "title" =&gt; "Shareurcodes.com", "body" =&gt; "A Code Sharing Blog!","icon" =&gt; "icon.png", "click_action" =&gt; "http://shareurcodes.com"));
$data_string = json_encode($data);
echo "The Json Data : ".$data_string;
$headers = array ( 'Authorization: key=' . API_ACCESS_KEY, 'Content-Type: application/json' );
$ch = curl_init(); curl_setopt( $ch,CURLOPT_URL, 'https://fcm.googleapis.com/fcm/send' );
curl_setopt( $ch,CURLOPT_POST, true );
curl_setopt( $ch,CURLOPT_HTTPHEADER, $headers );
curl_setopt( $ch,CURLOPT_RETURNTRANSFER, true );
curl_setopt( $ch,CURLOPT_POSTFIELDS, $data_string);
$result = curl_exec($ch);
curl_close ($ch);
echo "&lt;p&gt;&amp;nbsp;&lt;/p&gt;";
echo "The Result : ".$result;
</code></pre>

Remember <code>you need to execute curl.php file using another browser ie not from the browser that is used to get the user token. You can see notification only if you are browsing another website.</code>

blocks|key|2664880|text|Go+to+cloud+Messaging+select:++Server+key



function+sendGCM($message,+$deviceToken)+{

++++$url+=+'https://fcm.googleapis.com/fcm/send';
++++$fields+=+array+(
++++++++++++'registration_ids'+=>+array+(
++++++++++++++++$id
++++++++++++),
++++++++++++'data'+=>+array+(
++++++++++++++++"title"+=>++"Notification+title",
++++++++++++++++"body"+=>++$message,
++++++++++++)
++++);
++++$fields+=+json_encode+(+$fields+);
++++$headers+=+array+(
++++++++'Authorization:+key='+.+"YOUR_SERVER_KEY",
++++++++'Content-Type:+application/json'
++++);
++++$ch+=+curl_init+();
++++curl_setopt+(+$ch,+CURLOPT_URL,+$url+);
++++curl_setopt+(+$ch,+CURLOPT_POST,+true+);
++++curl_setopt+(+$ch,+CURLOPT_HTTPHEADER,+$headers+);
++++curl_setopt+(+$ch,+CURLOPT_RETURNTRANSFER,+true+);
++++curl_setopt+(+$ch,+CURLOPT_POSTFIELDS,+$fields+);
++++$result+=+curl_exec+(+$ch+);
++++echo+$result;

++++curl_close+($ch);
}|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|2664881|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>Go to cloud Messaging select: Server key



function sendGCM($message, $deviceToken) {

 $url = 'https://fcm.googleapis.com/fcm/send';
 $fields = array (
 'registration_ids' =&gt; array (
 $id
 ),
 'data' =&gt; array (
 &quot;title&quot; =&gt; &quot;Notification title&quot;,
 &quot;body&quot; =&gt; $message,
 )
 );
 $fields = json_encode ( $fields );
 $headers = array (
 'Authorization: key=' . &quot;YOUR_SERVER_KEY&quot;,
 'Content-Type: application/json'
 );
 $ch = curl_init ();
 curl_setopt ( $ch, CURLOPT_URL, $url );
 curl_setopt ( $ch, CURLOPT_POST, true );
 curl_setopt ( $ch, CURLOPT_HTTPHEADER, $headers );
 curl_setopt ( $ch, CURLOPT_RETURNTRANSFER, true );
 curl_setopt ( $ch, CURLOPT_POSTFIELDS, $fields );
 $result = curl_exec ( $ch );
 echo $result;

 curl_close ($ch);
}
</code></pre>

blocks|key|2664891|text|2020年的作品|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2664892|$response+=+Http::withHeaders([
++++++++++++'Content-Type'+=>+'application/json',
++++++++++++'Authorization'=>+'key='.+$token,
++++++++])->post($url,+[
++++++++++++'notification'+=>+[
++++++++++++++++'body'+=>+$request->summary,
++++++++++++++++'title'+=>+$request->title,
++++++++++++++++'image'+=>+'http://'.request()->getHttpHost().$path,
++++++++++++++++
++++++++++++],
++++++++++++'priority'=>+'high',
++++++++++++'data'+=>+[
++++++++++++++++'click_action'=>+'FLUTTER_NOTIFICATION_CLICK',
++++++++++++++++
++++++++++++++++'status'=>+'done',
++++++++++++++++
++++++++++++],
++++++++++++'to'+=>+'/topics/all'
++++++++]);|code-block|syntax|javascript|2664893|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Works in 2020
<pre><code>$response = Http::withHeaders([
 'Content-Type' =&gt; 'application/json',
 'Authorization'=&gt; 'key='. $token,
 ])-&gt;post($url, [
 'notification' =&gt; [
 'body' =&gt; $request-&gt;summary,
 'title' =&gt; $request-&gt;title,
 'image' =&gt; 'http://'.request()-&gt;getHttpHost().$path,
 
 ],
 'priority'=&gt; 'high',
 'data' =&gt; [
 'click_action'=&gt; 'FLUTTER_NOTIFICATION_CLICK',
 
 'status'=&gt; 'done',
 
 ],
 'to' =&gt; '/topics/all'
 ]);
</code></pre>

blocks|key|114537|text|以下是我的项目中使用CURL的工作代码。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|114538|<?PHP

//+API+access+key+from+Google+API's+Console
(+'API_ACCESS_KEY',+'YOUR-API-ACCESS-KEY-GOES-HERE'+);


+$registrationIds+=+array(+$_GET['id']+);

++//+prep+the+bundle
+$msg+=+array
+(
+++'message'++++=>+'here+is+a+message.+message',
++++'title'+++++=>+'This+is+a+title.+title',
++++'subtitle'++=>+'This+is+a+subtitle.+subtitle',
++++'tickerText'++++=>+'Ticker+text+here...Ticker+text+here...Ticker+text+here',
++++'vibrate'+++=>+1,
++++'sound'+++++=>+1,
++++'largeIcon'+=>+'large_icon',
++++'smallIcon'+=>+'small_icon'
+);

+$fields+=+array
+(
++++//+use+this+to+method+if+want+to+send+to+topics
++++//+'to'+=>+'topics/all'
++++'registration_ids'++=>+$registrationIds,
+++++'data'+++++++++=>+$msg
+);

+$headers+=+array
+(
++++'Authorization:+key='+.+API_ACCESS_KEY,
++++'Content-Type:+application/json'
+);

+$ch+=+curl_init();
+curl_setopt(+$ch,CURLOPT_URL,+'https://android.googleapis.com/gcm/send'+);
+curl_setopt(+$ch,CURLOPT_POST,+true+);
+curl_setopt(+$ch,CURLOPT_HTTPHEADER,+$headers+);
+curl_setopt(+$ch,CURLOPT_RETURNTRANSFER,+true+);
+curl_setopt(+$ch,CURLOPT_SSL_VERIFYPEER,+false+);
+curl_setopt(+$ch,CURLOPT_POSTFIELDS,+json_encode(+$fields+)+);
+$result+=+curl_exec($ch+);
+curl_close(+$ch+);

+echo+$result;|code-block|syntax|javascript|114539|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Here is the working code in my project using CURL.
<pre><code>&lt;?PHP

// API access key from Google API's Console
( 'API_ACCESS_KEY', 'YOUR-API-ACCESS-KEY-GOES-HERE' );


 $registrationIds = array( $_GET['id'] );

 // prep the bundle
 $msg = array
 (
 'message' =&gt; 'here is a message. message',
 'title' =&gt; 'This is a title. title',
 'subtitle' =&gt; 'This is a subtitle. subtitle',
 'tickerText' =&gt; 'Ticker text here...Ticker text here...Ticker text here',
 'vibrate' =&gt; 1,
 'sound' =&gt; 1,
 'largeIcon' =&gt; 'large_icon',
 'smallIcon' =&gt; 'small_icon'
 );

 $fields = array
 (
 // use this to method if want to send to topics
 // 'to' =&gt; 'topics/all'
 'registration_ids' =&gt; $registrationIds,
 'data' =&gt; $msg
 );

 $headers = array
 (
 'Authorization: key=' . API_ACCESS_KEY,
 'Content-Type: application/json'
 );

 $ch = curl_init();
 curl_setopt( $ch,CURLOPT_URL, 'https://android.googleapis.com/gcm/send' );
 curl_setopt( $ch,CURLOPT_POST, true );
 curl_setopt( $ch,CURLOPT_HTTPHEADER, $headers );
 curl_setopt( $ch,CURLOPT_RETURNTRANSFER, true );
 curl_setopt( $ch,CURLOPT_SSL_VERIFYPEER, false );
 curl_setopt( $ch,CURLOPT_POSTFIELDS, json_encode( $fields ) );
 $result = curl_exec($ch );
 curl_close( $ch );

 echo $result;
</code></pre>

blocks|key|114843|text|引言|type|unstyled|depth|inlineStyleRanges|entityRanges|data|114844|我编译了上面的大部分答案，并根据FCM+HTTP+Connection+Docs更新了变量，以在2021年策划一个与FCM一起工作的解决方案。感谢Hamzah+Malik在上面非常有洞察力的回答。|offset|length|114845|先决条件|114846|首先，确保您已将项目与Firebase连接，并且已设置应用程序的所有依赖项。如果您还没有，请先访问FCM+Config+docs|114847|如果这样做了，您还需要从API复制项目的服务器响应密钥。转到你的Firebase+Console，点击你正在处理的项目，然后导航到；|114848|Project+Settings(Setting+wheel+on+upper+left+corner)+->+Cloud+Messaging+Tab+->+Copy+the+Server+key|code-block|syntax|javascript|114849|配置PHP后端|114850|我用Ankit+Adlakha's+API+call+structure和FCM文档编译了Hamzah的答案，得到了下面的PHP函数：|114851|function+sendGCM()+{
++//+FCM+API+Url
++$url+=+'https://fcm.googleapis.com/fcm/send';

++//+Put+your+Server+Response+Key+here
++$apiKey+=+"YOUR+SERVER+RESPONSE+KEY+HERE";

++//+Compile+headers+in+one+variable
++$headers+=+array+(
++++'Authorization:key='+.+$apiKey,
++++'Content-Type:application/json'
++);

++//+Add+notification+content+to+a+variable+for+easy+reference
++$notifData+=+[
++++'title'+=>+"Test+Title",
++++'body'+=>+"Test+notification+body",
++++'click_action'+=>+"android.intent.action.MAIN"
++];

++//+Create+the+api+body
++$apiBody+=+[
++++'notification'+=>+$notifData,
++++'data'+=>+$notifData,
++++"time_to_live"+=>+"600"+//+Optional
++++'to'+=>+'/topics/mytargettopic'+//+Replace+'mytargettopic'+with+your+intended+notification+audience
++];

++//+Initialize+curl+with+the+prepared+headers+and+body
++$ch+=+curl_init();
++curl_setopt+($ch,+CURLOPT_URL,+$url+);
++curl_setopt+($ch,+CURLOPT_POST,+true+);
++curl_setopt+($ch,+CURLOPT_HTTPHEADER,+$headers);
++curl_setopt+($ch,+CURLOPT_RETURNTRANSFER,+true+);
++curl_setopt+($ch,+CURLOPT_POSTFIELDS,+json_encode($apiBody));

++//+Execute+call+and+save+result
++$result+=+curl_exec+(+$ch+);

++//+Close+curl+after+call
++curl_close+(+$ch+);

++return+$result;
}|114852|自定义通知推送|114853|要通过令牌提交通知，请使用'to'+=>+'registration+token'|style|CODE|114854|期待什么？|114855|我在我的网站后端设置了这个功能，并在Postman上进行了测试。如果您的配置成功，您应该会看到类似于下面的响应；|114856|{"message":"{"message_id":3061657653031348530}"}|114857|entityMap|0|LINK|mutability|MUTABLE|url|https://firebase.google.com/docs/cloud-messaging/server#implementing-http-connection-server-protocol|1|https://stackoverflow.com/a/39058440/7145285|2|https://firebase.google.com/docs/cloud-messaging/android/client|3|https://console.firebase.google.com/|4|https://stackoverflow.com/a/37599206/7145285^0|0|G|O|0|21|C|1|0|0|1D|F|2|0|W|G|3|0|0|0|2|Y|4|0|0|0|D|S|0|0|0|0^^$0|@$1|2|3|4|5|6|7|1O|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|1P|8|@]|9|@$D|1Q|E|1R|1|1S]|$D|1T|E|1U|1|1V]]|A|$]]|$1|F|3|G|5|6|7|1W|8|@]|9|@]|A|$]]|$1|H|3|I|5|6|7|1X|8|@]|9|@$D|1Y|E|1Z|1|20]]|A|$]]|$1|J|3|K|5|6|7|21|8|@]|9|@$D|22|E|23|1|24]]|A|$]]|$1|L|3|M|5|N|7|25|8|@]|9|@]|A|$O|P]]|$1|Q|3|R|5|6|7|26|8|@]|9|@]|A|$]]|$1|S|3|T|5|6|7|27|8|@]|9|@$D|28|E|29|1|2A]]|A|$]]|$1|U|3|V|5|N|7|2B|8|@]|9|@]|A|$O|P]]|$1|W|3|X|5|6|7|2C|8|@]|9|@]|A|$]]|$1|Y|3|Z|5|6|7|2D|8|@$D|2E|E|2F|10|11]]|9|@]|A|$]]|$1|12|3|13|5|6|7|2G|8|@]|9|@]|A|$]]|$1|14|3|15|5|6|7|2H|8|@]|9|@]|A|$]]|$1|16|3|17|5|N|7|2I|8|@]|9|@]|A|$O|P]]|$1|18|3|-4|5|6|7|2J|8|@]|9|@]|A|$]]]|19|$1A|$5|1B|1C|1D|A|$1E|1F]]|1G|$5|1B|1C|1D|A|$1E|1H]]|1I|$5|1B|1C|1D|A|$1E|1J]]|1K|$5|1B|1C|1D|A|$1E|1L]]|1M|$5|1B|1C|1D|A|$1E|1N]]]]

<h1>Introduction</h1>
I compiled most of the answers above and updated the variables based on the <a href="https://firebase.google.com/docs/cloud-messaging/server#implementing-http-connection-server-protocol" rel="noreferrer">FCM HTTP Connection Docs</a> to curate a solution that works with FCM in 2021. Credit to <a href="https://stackoverflow.com/a/39058440/7145285">Hamzah Malik</a> for his very insightful answer above.
<h2>Prerequisites</h2>
First, ensure that you have connected your project with Firebase and that you have set up all dependencies on your app. If you haven't, first head over to the <a href="https://firebase.google.com/docs/cloud-messaging/android/client" rel="noreferrer">FCM Config docs</a>
If that is done, you will also need to copy your project's server response key from the API. Head over to your <a href="https://console.firebase.google.com/" rel="noreferrer">Firebase Console</a>, click on the project you're working on and then navigate to;
<pre><code>Project Settings(Setting wheel on upper left corner) -&gt; Cloud Messaging Tab -&gt; Copy the Server key
</code></pre>
<h2>Configuring your PHP Backend</h2>
I compiled Hamzah's answer with <a href="https://stackoverflow.com/a/37599206/7145285">Ankit Adlakha's API call structure</a> and the FCM Docs to come up with the PHP function below:
<pre><code>function sendGCM() {
 // FCM API Url
 $url = 'https://fcm.googleapis.com/fcm/send';

 // Put your Server Response Key here
 $apiKey = &quot;YOUR SERVER RESPONSE KEY HERE&quot;;

 // Compile headers in one variable
 $headers = array (
 'Authorization:key=' . $apiKey,
 'Content-Type:application/json'
 );

 // Add notification content to a variable for easy reference
 $notifData = [
 'title' =&gt; &quot;Test Title&quot;,
 'body' =&gt; &quot;Test notification body&quot;,
 'click_action' =&gt; &quot;android.intent.action.MAIN&quot;
 ];

 // Create the api body
 $apiBody = [
 'notification' =&gt; $notifData,
 'data' =&gt; $notifData,
 &quot;time_to_live&quot; =&gt; &quot;600&quot; // Optional
 'to' =&gt; '/topics/mytargettopic' // Replace 'mytargettopic' with your intended notification audience
 ];

 // Initialize curl with the prepared headers and body
 $ch = curl_init();
 curl_setopt ($ch, CURLOPT_URL, $url );
 curl_setopt ($ch, CURLOPT_POST, true );
 curl_setopt ($ch, CURLOPT_HTTPHEADER, $headers);
 curl_setopt ($ch, CURLOPT_RETURNTRANSFER, true );
 curl_setopt ($ch, CURLOPT_POSTFIELDS, json_encode($apiBody));

 // Execute call and save result
 $result = curl_exec ( $ch );

 // Close curl after call
 curl_close ( $ch );

 return $result;
}
</code></pre>
<h2>Customizing your notification push</h2>
To submit the notifications via tokens, use <code>'to' =&gt; 'registration token'</code>
<h2>What to expect</h2>
I set up the function in my website back-end and tested it on Postman. If your configuration was successful, you should expect a response similar to the one below;
<pre><code>{&quot;message&quot;:&quot;{&quot;message_id&quot;:3061657653031348530}&quot;}
</code></pre>

I'm starting with the new Google service for the notifications, <code>Firebase Cloud Messaging</code>. 

Thanks to this code <a href="https://github.com/firebase/quickstart-android/tree/master/messaging">https://github.com/firebase/quickstart-android/tree/master/messaging</a> I was able to send notifications from my Firebase User Console to my Android device.

Is there any API or way to send a notification without use the Firebase console? I mean, for example, a PHP API or something like that, to create notifications from my own server directly.

How can I send a Firebase Cloud Messaging notification without use the Firebase Console?

服务器

云函数

我先从谷歌新推出的通知服务Firebase Cloud Messaging开始。多亏了这段代码，我才能从我的Firebase用户控制台向我的安卓设备发送通知。有没有什么API或方法可以在不使用Firebase控制台的情况下发送通知？我的意思是，例如，一个PHP API或类似的东西，直接从我自己的服务器创建通知。

问如何在不使用Firebase控制台的情况下发送Firebase云消息通知？
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