blocks|key|652681|text|使用$_SERVER['HTTP_USER_AGENT']中的用户代理，对于简单的检测，您可以使用this脚本：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|652682|<?php

//Detect+special+conditions+devices
$iPod++++=+stripos($_SERVER['HTTP_USER_AGENT'],"iPod");
$iPhone++=+stripos($_SERVER['HTTP_USER_AGENT'],"iPhone");
$iPad++++=+stripos($_SERVER['HTTP_USER_AGENT'],"iPad");
$Android+=+stripos($_SERVER['HTTP_USER_AGENT'],"Android");
$webOS+++=+stripos($_SERVER['HTTP_USER_AGENT'],"webOS");

//do+something+with+this+information
if(+$iPod+%7C%7C+$iPhone+){
++++//browser+reported+as+an+iPhone/iPod+touch+--+do+something+here
}else+if($iPad){
++++//browser+reported+as+an+iPad+--+do+something+here
}else+if($Android){
++++//browser+reported+as+an+Android+device+--+do+something+here
}else+if($webOS){
++++//browser+reported+as+a+webOS+device+--+do+something+here
}

?>+|code-block|syntax|javascript|652683|如果您想了解用户设备的更多详细信息，我建议使用以下解决方案之一：http://51degrees.mobi或http://deviceatlas.com|652684|entityMap|0|LINK|mutability|MUTABLE|url|http://www.schiffner.com/programming-php-classes/php-mobile-device-detection/|1|http://51degrees.mobi/|2|http://deviceatlas.com/^0|2|R|1D|4|0|0|0|W|L|1|1I|M|2|0^^$0|@$1|2|3|4|5|6|7|Y|8|@$9|Z|A|10|B|C]]|D|@$9|11|A|12|1|13]]|E|$]]|$1|F|3|G|5|H|7|14|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|15|8|@]|D|@$9|16|A|17|1|18]|$9|19|A|1A|1|1B]]|E|$]]|$1|M|3|-4|5|6|7|1C|8|@]|D|@]|E|$]]]|N|$O|$5|P|Q|R|E|$S|T]]|U|$5|P|Q|R|E|$S|V]]|W|$5|P|Q|R|E|$S|X]]]]

Use the user agent from <code>$_SERVER['HTTP_USER_AGENT']</code>, 
and for simple detection you can use <a href="http://www.schiffner.com/programming-php-classes/php-mobile-device-detection/">this</a> script: 

<pre><code>&lt;?php

//Detect special conditions devices
$iPod = stripos($_SERVER['HTTP_USER_AGENT'],"iPod");
$iPhone = stripos($_SERVER['HTTP_USER_AGENT'],"iPhone");
$iPad = stripos($_SERVER['HTTP_USER_AGENT'],"iPad");
$Android = stripos($_SERVER['HTTP_USER_AGENT'],"Android");
$webOS = stripos($_SERVER['HTTP_USER_AGENT'],"webOS");

//do something with this information
if( $iPod || $iPhone ){
 //browser reported as an iPhone/iPod touch -- do something here
}else if($iPad){
 //browser reported as an iPad -- do something here
}else if($Android){
 //browser reported as an Android device -- do something here
}else if($webOS){
 //browser reported as a webOS device -- do something here
}

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

If you want to know more details of the user device I recommended to use one of the following solutions: <a href="http://51degrees.mobi">http://51degrees.mobi</a> or <a href="http://deviceatlas.com">http://deviceatlas.com</a>

blocks|key|869998|text|$browser+=+strpos($_SERVER['HTTP_USER_AGENT'],"iPhone");|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|869999|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>$browser = strpos($_SERVER['HTTP_USER_AGENT'],"iPhone");
</code></pre>

blocks|key|870032|text|这是针对Iphone的工作|type|unstyled|depth|inlineStyleRanges|entityRanges|data|870033|<?php
++$browser+=+strpos($_SERVER['HTTP_USER_AGENT'],"iPhone");
++if+($browser+==+true){
++++$browser+=+'iphone';
++}
?>|code-block|syntax|javascript|870034|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|$]]

It's work for Iphone

<pre><code>&lt;?php
 $browser = strpos($_SERVER['HTTP_USER_AGENT'],"iPhone");
 if ($browser == true){
 $browser = 'iphone';
 }
?&gt;
</code></pre>

blocks|key|652745|text|preg_match("/iPhone%7CAndroid%7CiPad%7CiPod%7CwebOS/",+$_SERVER['HTTP_USER_AGENT'],+$matches);
$os+=+current($matches);

switch($os){
+++case+'iPhone':+/*do+something...*/+break;
+++case+'Android':+/*do+something...*/+break;
+++case+'iPad':+/*do+something...*/+break;
+++case+'iPod':+/*do+something...*/+break;
+++case+'webOS':+/*do+something...*/+break;
}|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|652746|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>preg_match("/iPhone|Android|iPad|iPod|webOS/", $_SERVER['HTTP_USER_AGENT'], $matches);
$os = current($matches);

switch($os){
 case 'iPhone': /*do something...*/ break;
 case 'Android': /*do something...*/ break;
 case 'iPad': /*do something...*/ break;
 case 'iPod': /*do something...*/ break;
 case 'webOS': /*do something...*/ break;
}
</code></pre>

blocks|key|652793|text|如果您只想检测一般移动设备，则Cake内置了使用RequestHandler->isMobile()+(http://book.cakephp.org/2.0/en/core-libraries/components/request-handling.html#RequestHandlerComponent::isMobile)的支持|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|652794|entityMap|0|LINK|mutability|MUTABLE|url|http://book.cakephp.org/2.0/en/core-libraries/components/request-handling.html#RequestHandlerComponent%253a%253aisMobile^0|1G|34|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]]]]

If you just want to detect mobile devices in generel, Cake has build in support using RequestHandler->isMobile() (<a href="http://book.cakephp.org/2.0/en/core-libraries/components/request-handling.html#RequestHandlerComponent%3a%3aisMobile" rel="nofollow">http://book.cakephp.org/2.0/en/core-libraries/components/request-handling.html#RequestHandlerComponent::isMobile</a>)

blocks|key|652806|text|function+user_agent(){
++++$iPod+=+strpos($_SERVER['HTTP_USER_AGENT'],"iPod");
++++$iPhone+=+strpos($_SERVER['HTTP_USER_AGENT'],"iPhone");
++++$iPad+=+strpos($_SERVER['HTTP_USER_AGENT'],"iPad");
++++$android+=+strpos($_SERVER['HTTP_USER_AGENT'],"Android");
++++file_put_contents('./public/upload/install_log/agent',$_SERVER['HTTP_USER_AGENT']);
++++if($iPad%7C%7C$iPhone%7C%7C$iPod){
++++++++return+'ios';
++++}else+if($android){
++++++++return+'android';
++++}else{
++++++++return+'pc';
++++}
}|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|652807|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>function user_agent(){
 $iPod = strpos($_SERVER['HTTP_USER_AGENT'],"iPod");
 $iPhone = strpos($_SERVER['HTTP_USER_AGENT'],"iPhone");
 $iPad = strpos($_SERVER['HTTP_USER_AGENT'],"iPad");
 $android = strpos($_SERVER['HTTP_USER_AGENT'],"Android");
 file_put_contents('./public/upload/install_log/agent',$_SERVER['HTTP_USER_AGENT']);
 if($iPad||$iPhone||$iPod){
 return 'ios';
 }else if($android){
 return 'android';
 }else{
 return 'pc';
 }
}
</code></pre>

blocks|key|870143|text|<?php
$iPhone+=+false;
$AndroidPhone+=+false;
$deviceType+=+0;

$ua+=+strtolower($_SERVER['HTTP_USER_AGENT']);
print+" ".$ua;

if(strpos($ua,"iphone")+!==+false+){
++++$iPhone+=+true;
}
if(strpos($ua,"android")+!==+false){

++++if(strpos($_SERVER['HTTP_USER_AGENT'],"mobile")){
++++++++$AndroidPhone+=+true;++++++++
++++}
}
if(stripos($_SERVER['HTTP_USER_AGENT'],"iPad")){
++++$iPad+=+true;
++++$Tablet+=+true;
++++$iOS+=+true;
}+++

if($AndroidPhone==true+%7C%7C+$iPhone==true)
{
++++$deviceType+=+1;
}
?>|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|870144|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>&lt;?php
$iPhone = false;
$AndroidPhone = false;
$deviceType = 0;

$ua = strtolower($_SERVER['HTTP_USER_AGENT']);
print "&lt;br&gt;".$ua;

if(strpos($ua,"iphone") !== false ){
 $iPhone = true;
}
if(strpos($ua,"android") !== false){

 if(strpos($_SERVER['HTTP_USER_AGENT'],"mobile")){
 $AndroidPhone = true; 
 }
}
if(stripos($_SERVER['HTTP_USER_AGENT'],"iPad")){
 $iPad = true;
 $Tablet = true;
 $iOS = true;
} 

if($AndroidPhone==true || $iPhone==true)
{
 $deviceType = 1;
}
?&gt;
</code></pre>

blocks|key|652827|text|function+isIosDevice(){
++++$userAgent+=+strtolower($_SERVER['HTTP_USER_AGENT']);
++++$iosDevice+=+array('iphone',+'ipod',+'ipad');
++++$isIos+=+false;

++++foreach+($iosDevice+as+$val)+{
++++++++if(stripos($userAgent,+$val)+!==+false){
++++++++++++$isIos+=+true;
++++++++++++break;
++++++++}
++++}

++++return+$isIos;
}|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|652828|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>function isIosDevice(){
 $userAgent = strtolower($_SERVER['HTTP_USER_AGENT']);
 $iosDevice = array('iphone', 'ipod', 'ipad');
 $isIos = false;

 foreach ($iosDevice as $val) {
 if(stripos($userAgent, $val) !== false){
 $isIos = true;
 break;
 }
 }

 return $isIos;
}
</code></pre>

blocks|key|652869|text|51Degrees的PHP解决方案可以做到这一点。你可以在https://github.com/51Degrees/Device-Detection这里获得免费的开源API。您可以使用HardwareFamily属性来确定它是否是iPad/iPod/iPhone等。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|652870|由于苹果用户代理的性质，初始结果将返回通用设备，但是，如果您对特定设备感兴趣，则可以使用JavaScript客户端覆盖来确定特定型号。|652871|要做到这一点，一旦您确定它是一台苹果设备，您可以实现类似于以下逻辑的东西，在本例中为iPhone。|652872|//+iPhone+model+checks.
function+getiPhoneModel()+{
//+iPhone+6+Plus
if+((window.screen.height+/+window.screen.width+==+736+/+414)+&&+
(window.devicePixelRatio+==+3))+{
return+"iPhone+6+Plus";
}
//+iPhone+6
else+if+((window.screen.height+/+window.screen.width+==+667+/+375)+&&+
(window.devicePixelRatio+==+2))+{
return+"iPhone+6";
}
//+iPhone+5/5C/5S+or+6+in+zoom+mode
else+if+((window.screen.height+/+window.screen.width+==+1.775)+&&+
(window.devicePixelRatio+==+2))+{
return+"iPhone+5,+5C,+5S+or+6+(display+zoom)";
}
//+iPhone+4/4S
else+if+((window.screen.height+/+window.screen.width+==+1.5)+&&+
(window.devicePixelRatio+==+2))+{
return+"iPhone+4+or+4S";
}
//+iPhone+1/3G/3GS
else+if+((window.screen.height+/+window.screen.width+==+1.5)+&&+
(window.devicePixelRatio+==+1))+{
return+"iPhone+1,+3G+or+3GS";
}+else+{
return+"Not+an+iPhone";
};
}|code-block|syntax|javascript|652873|或者对于iPad|652874|function+getiPadVersion()+{
var+pixelRatio+=+getPixelRatio();
var+return_string+=+"Not+an+iPad";
if+(pixelRatio+==+1+)+{
return_string+=+"iPad+1,+iPad+2,+iPad+Mini+1";
}
if+(pixelRatio+==+2)+{
return_string+=+"iPad+3,+iPad+4,+iPad+Air+1,+iPad+Air+2,+iPad+Mini+2,+iPad+
Mini+3";
}
return+return_string;
}|652875|关于51Degrees对苹果设备所做的研究的更多信息，你可以在这里阅读他们的博客文章https://51degrees.com/blog/device-detection-for-apple-iphone-and-ipad。|652876|披露:我为51Degrees工作。|652877|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/51Degrees/Device-Detection|1|https://51degrees.com/blog/device-detection-for-apple-iphone-and-ipad^0|T|19|0|0|0|0|0|0|0|16|1X|1|0|0^^$0|@$1|2|3|4|5|6|7|14|8|@]|9|@$A|15|B|16|1|17]]|C|$]]|$1|D|3|E|5|6|7|18|8|@]|9|@]|C|$]]|$1|F|3|G|5|6|7|19|8|@]|9|@]|C|$]]|$1|H|3|I|5|J|7|1A|8|@]|9|@]|C|$K|L]]|$1|M|3|N|5|6|7|1B|8|@]|9|@]|C|$]]|$1|O|3|P|5|J|7|1C|8|@]|9|@]|C|$K|L]]|$1|Q|3|R|5|6|7|1D|8|@]|9|@$A|1E|B|1F|1|1G]]|C|$]]|$1|S|3|T|5|6|7|1H|8|@]|9|@]|C|$]]|$1|U|3|-4|5|6|7|1I|8|@]|9|@]|C|$]]]|V|$W|$5|X|Y|Z|C|$10|11]]|12|$5|X|Y|Z|C|$10|13]]]]

51Degrees' PHP solution is able to do this. you can get the free Open Source API here <a href="https://github.com/51Degrees/Device-Detection" rel="nofollow noreferrer">https://github.com/51Degrees/Device-Detection</a>. You can use the HardwareFamily Property to determine if it is an iPad/iPod/iPhone etc. 

Due to the nature of Apple's User-Agents the initial result will return a generic device, however if you are interested in the specific device you can use a JavaScript client side override to determine to specific model.

To do this you can implement something similar to the following logic once you have determined it is an Apple Device, in this case for an iPhone.

<pre><code>// iPhone model checks.
function getiPhoneModel() {
// iPhone 6 Plus
if ((window.screen.height / window.screen.width == 736 / 414) &amp;&amp; 
(window.devicePixelRatio == 3)) {
return "iPhone 6 Plus";
}
// iPhone 6
else if ((window.screen.height / window.screen.width == 667 / 375) &amp;&amp; 
(window.devicePixelRatio == 2)) {
return "iPhone 6";
}
// iPhone 5/5C/5S or 6 in zoom mode
else if ((window.screen.height / window.screen.width == 1.775) &amp;&amp; 
(window.devicePixelRatio == 2)) {
return "iPhone 5, 5C, 5S or 6 (display zoom)";
}
// iPhone 4/4S
else if ((window.screen.height / window.screen.width == 1.5) &amp;&amp; 
(window.devicePixelRatio == 2)) {
return "iPhone 4 or 4S";
}
// iPhone 1/3G/3GS
else if ((window.screen.height / window.screen.width == 1.5) &amp;&amp; 
(window.devicePixelRatio == 1)) {
return "iPhone 1, 3G or 3GS";
} else {
return "Not an iPhone";
};
}
</code></pre>

Or for an iPad

<pre><code>function getiPadVersion() {
var pixelRatio = getPixelRatio();
var return_string = "Not an iPad";
if (pixelRatio == 1 ) {
return_string = "iPad 1, iPad 2, iPad Mini 1";
}
if (pixelRatio == 2) {
return_string = "iPad 3, iPad 4, iPad Air 1, iPad Air 2, iPad Mini 2, iPad 
Mini 3";
}
return return_string;
}
</code></pre>

For more information on research 51Degrees have done into Apple devices you can read their blog post here <a href="https://51degrees.com/blog/device-detection-for-apple-iphone-and-ipad" rel="nofollow noreferrer">https://51degrees.com/blog/device-detection-for-apple-iphone-and-ipad</a>.

Disclosure: I work for 51Degrees.

blocks|key|870236|text|为了响应Haim+Evgi的代码，我在最后添加了!==+false，这样它就可以为我工作了|type|unstyled|depth|inlineStyleRanges|entityRanges|data|870237|$iPod++++=+stripos($_SERVER['HTTP_USER_AGENT'],"iPod")+!==+false;
$iPhone++=+stripos($_SERVER['HTTP_USER_AGENT'],"iPhone")+!==+false;
$iPad++++=+stripos($_SERVER['HTTP_USER_AGENT'],"iPad")+!==+false;
$Android+=+stripos($_SERVER['HTTP_USER_AGENT'],"Android")+!==+false;|code-block|syntax|javascript|870238|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|$]]

In response to Haim Evgi's code, I added !== false to the end for it to work for me

<pre><code>$iPod = stripos($_SERVER['HTTP_USER_AGENT'],"iPod") !== false;
$iPhone = stripos($_SERVER['HTTP_USER_AGENT'],"iPhone") !== false;
$iPad = stripos($_SERVER['HTTP_USER_AGENT'],"iPad") !== false;
$Android = stripos($_SERVER['HTTP_USER_AGENT'],"Android") !== false;
</code></pre>

I have a simple PHP webpage, and would like to return different content depending if it's accessed from an iPhone/iPad or from a web brower. How can I do that?

Check if PHP-page is accessed from an iOS device

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我有一个简单的PHP网页，并希望返回不同的内容，这取决于它是从iPhone/iPad或从网页浏览器访问。我该怎么做呢？

问检查是否从iOS设备访问PHP-page
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