blocks|key|1556343|text|在请求中传递数据|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1556344|您可以将其作为隐藏字段嵌入到表单中，也可以将其添加到表单操作URL中|1556345|+echo+'<input+type="hidden"+name="myVariable"+value="'.
+++++htmlentities($myVariable).'">';|code-block|syntax|javascript|1556346|或|1556347|echo+'<form+method="POST"+action="Page2.php?myVariable='.
++++urlencode($myVariable).'">";|1556348|注这也说明了在传递数据时如何使用htmlentities和urlencode。|offset|length|1556349|在会话中传递数据|1556350|如果数据不需要传递到客户端，那么会话可能更合适。只需在每个页面的开始处调用session_start()，就可以在$_SESSION数组中获取和设置数据。|1556351|安全性|1556352|由于您声明的值实际上是一个文件名，因此您需要了解其安全性后果。如果文件名已经从客户端到达，则假定用户篡改了该值。检查它的有效性！当用户将路径传递给重要的系统文件或其控制的文件时，会发生什么情况？您的脚本是否可以用来“探测”服务器上存在或不存在的文件？|1556353|由于你在这里显然才刚刚开始，值得提醒的是，这适用于任何到达$_GET、$_POST或$_COOKIE的数据-假设你最大的敌人精心设计了这些数组的内容，并相应地编码！|1556354|entityMap|0|LINK|mutability|MUTABLE|url|http://php.net/htmlentities|1|http://php.net/urlencode|2|http://php.net/session_start^0|0|0|0|0|0|G|C|0|T|9|1|0|0|11|F|2|0|0|0|0^^$0|@$1|2|3|4|5|6|7|1C|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|1D|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|1E|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|1F|8|@]|9|@]|A|$]]|$1|K|3|L|5|F|7|1G|8|@]|9|@]|A|$G|H]]|$1|M|3|N|5|6|7|1H|8|@]|9|@$O|1I|P|1J|1|1K]|$O|1L|P|1M|1|1N]]|A|$]]|$1|Q|3|R|5|6|7|1O|8|@]|9|@]|A|$]]|$1|S|3|T|5|6|7|1P|8|@]|9|@$O|1Q|P|1R|1|1S]]|A|$]]|$1|U|3|V|5|6|7|1T|8|@]|9|@]|A|$]]|$1|W|3|X|5|6|7|1U|8|@]|9|@]|A|$]]|$1|Y|3|Z|5|6|7|1V|8|@]|9|@]|A|$]]|$1|10|3|-4|5|6|7|1W|8|@]|9|@]|A|$]]]|11|$12|$5|13|14|15|A|$16|17]]|18|$5|13|14|15|A|$16|19]]|1A|$5|13|14|15|A|$16|1B]]]]

<h2> Passing data in the request</h2>

<p>You could either embed it as a hidden field in your form, or add it your forms action URL</p>

<pre><code> echo '&lt;input type="hidden" name="myVariable" value="'.
     htmlentities($myVariable).'"&gt;';
</code></pre>

<p>or</p>

<pre><code>echo '&lt;form method="POST" action="Page2.php?myVariable='.
    urlencode($myVariable).'"&gt;";
</code></pre>

<p>Note this also illustrates the use of <a href="http://php.net/htmlentities" rel="noreferrer">htmlentities</a> and <a href="http://php.net/urlencode" rel="noreferrer">urlencode</a> when passing data around.</p>

<h2> Passing data in the session</h2>

<p>If the data doesn't need to be passed to the client side, then sessions may be more appropriate. Simply call <a href="http://php.net/session_start" rel="noreferrer">session_start()</a> at the start of each page, and you can get and set data into the $_SESSION array.</p>

<h2>Security</h2>

<p>Since you state your value is actually a filename, you need to be aware of the security ramifications. If the filename has arrived from the client side, assume the user has tampered with the value. Check it for validity! What happens when the user passes the path to an important system file, or a file under their control? Can your script be used to "probe" the server for files that do or do not exist?</p>

<p>As you are clearly just getting started here, its worth reminding that this goes for any data which arrives in $_GET, $_POST or $_COOKIE - assume your worst enemy crafted the contents of those arrays, and code accordingly!</p>


blocks|key|1340812|text|会话将是唯一的好方法，您也可以使用GET/POST，但这可能是不安全的。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1340813|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

<p>Sessions would be the only good way, you could also use GET/POST but that would be potentially insecure.</p>


blocks|key|1556432|text|试试这段代码|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1556433|使用隐藏字段，我们可以将php变量传递到另一个页面|1556434|page1.php|1556435|<?php+$myVariable+=+"Some+text";?>
<form+method="post"+action="page2.php">
+<input+type="hidden"+name="text"+value="<?php+echo+$myVariable;+?>">
+<button+type="submit">Submit</button>
</form>|code-block|syntax|javascript|1556436|将php变量传递给隐藏字段值，以便可以将此变量访问到另一个页面|1556437|page2.php|1556438|<?php
+$text=$_POST['text'];
+echo+$text;
?>|1556439|entityMap^0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|T|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|U|8|@]|9|@]|A|$]]|$1|F|3|G|5|H|7|V|8|@]|9|@]|A|$I|J]]|$1|K|3|L|5|6|7|W|8|@]|9|@]|A|$]]|$1|M|3|N|5|6|7|X|8|@]|9|@]|A|$]]|$1|O|3|P|5|H|7|Y|8|@]|9|@]|A|$I|J]]|$1|Q|3|-4|5|6|7|Z|8|@]|9|@]|A|$]]]|R|$]]

<p>try this code</p>

<p>using hidden field we can pass php varibale to another page</p>

<p>page1.php</p>

<pre><code>&lt;?php $myVariable = "Some text";?&gt;
&lt;form method="post" action="page2.php"&gt;
 &lt;input type="hidden" name="text" value="&lt;?php echo $myVariable; ?&gt;"&gt;
 &lt;button type="submit"&gt;Submit&lt;/button&gt;
&lt;/form&gt;
</code></pre>

<p>pass php variable to hidden field value so you can access this variable into another page</p>

<p>page2.php</p>

<pre><code>&lt;?php
 $text=$_POST['text'];
 echo $text;
?&gt;
</code></pre>


blocks|key|1556480|text|例如，您可以通过在url中包含变量来调用所需的页面：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1556481|header("Location:+../signup.php?newpwd=passwordupdated");|code-block|syntax|javascript|1556482|在你的signup.php页面上，你会有|1556483|if+(isset($_GET['newpwd'])+&&+$_GET['newpwd']+==+"passwordupdated")+{
++++++++//code+here
++++}|1556484|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

<p>You can for example call the page you want by including variables in the url:</p>
<pre><code>header(&quot;Location: ../signup.php?newpwd=passwordupdated&quot;);
</code></pre>
<p>And on your signup.php page, you would have</p>
<pre><code>if (isset($_GET['newpwd']) &amp;&amp; $_GET['newpwd'] == &quot;passwordupdated&quot;) {
        //code here
    }
</code></pre>


<p>It seems pretty simple but I can't find a good way to do it.</p>

<p>Say in the first page I create a variable</p>

<pre><code>$myVariable = "Some text";
</code></pre>

<p>And the form's action for that page is "Page2.php". So in Page2.php, how can I have access to that variable? I know I can do it with sessions but I think it's too much for a simple string, and I do only need to pass a simple string (a file name).</p>

<p>How can I achieve this?</p>

<p>Thanks!</p>


PHP Pass variable to next page

服务器

这看起来很简单，但我找不到一个好的方法。假设在第一页中我创建了一个变量$myVariable = "Some text";表单对该页面的操作是"Page2.php“。那么，在Page2.php中，我如何访问该变量呢？我知道使用会话可以做到这一点，但我认为这对于一个简单的字符串来说太多了，我只需要传递一个简单的字符串(一...

问PHP将变量传递到下一页
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