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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html> <head> <title>HTTP GET variables</title> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> </head> <body><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="reserved.variables.server.html">$_SERVER</a></div> <div class="next" style="text-align: right; float: right;"><a href="reserved.variables.post.html">$_POST</a></div> <div class="up"><a href="reserved.variables.html">Predefined variables</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div><hr /><div id="reserved.variables.get" class="refentry"> <div class="refnamediv"> <h1 class="refname">$_GET</h1> <h1 class="refname">$HTTP_GET_VARS [deprecated]</h1> <p class="refpurpose"><span class="refname">$_GET</span> -- <span class="refname">$HTTP_GET_VARS [deprecated]</span> — <span class="dc-title">HTTP GET variables</span></p> </div> <div class="refsect1 description"> <h3 class="title">Description</h3> <p class="para"> An associative array of variables passed to the current script via the HTTP GET method. </p> <p class="simpara"> <var class="varname">$HTTP_GET_VARS</var> contains the same initial information, but is not a <a href="language.variables.superglobals.html" class="link">superglobal</a>. (Note that <var class="varname">$HTTP_GET_VARS</var> and <var class="varname">$_GET</var> are different variables and that PHP handles them as such) </p> </div> <div class="refsect1 changelog"> <h3 class="title">ChangeLog</h3> <p class="para"> <table class="informaltable"> <colgroup> <thead valign="middle"> <tr valign="middle"> <th colspan="1">Version</th> <th colspan="1">Description</th> </tr> </thead> <tbody valign="middle" class="tbody"> <tr valign="middle"> <td colspan="1" rowspan="1" align="left">4.1.0</td> <td colspan="1" rowspan="1" align="left"> Introduced <var class="varname">$_GET</var> that deprecated <var class="varname">$HTTP_GET_VARS</var>. </td> </tr> </tbody> </colgroup> </table> </p> </div> <div class="refsect1 examples"> <h3 class="title">Examples</h3> <p class="para"> <div class="example" id="variable.get.basic" name="variable.get.basic"> <p><b>Example #1 <var class="varname">$_GET</var> example</b></p> <div class="example-contents"><div class="phpcode"><code><span style="color: #000000"><span style="color: #0000BB"><?php<br /></span><span style="color: #007700">echo </span><span style="color: #DD0000">'Hello ' </span><span style="color: #007700">. </span><span style="color: #0000BB">htmlspecialchars</span><span style="color: #007700">(</span><span style="color: #0000BB">$_GET</span><span style="color: #007700">[</span><span style="color: #DD0000">"name"</span><span style="color: #007700">]) . </span><span style="color: #DD0000">'!'</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">?></span></span></code></div> </div> <div class="example-contents"><p> Assuming the user entered http://example.com/?name=Hannes </p></div> <div class="example-contents"><p>The above example will output something similar to:</p></div> <div class="example-contents"><pre><div class="cdata"><pre>Hello Hannes!</pre></div> </pre></div> </div> </p> </div> <div class="refsect1 notes"> <h3 class="title">Notes</h3> <blockquote><p><b class="note">Note</b>: This is a 'superglobal', orautomatic global, variable. This simply means that it is available inall scopes throughout a script. There is no need to do <strong class="command">global $variable;</strong> to access it within functions or methods.<br /></p></blockquote> </div> <div class="refsect1 seealso"> <h3 class="title">See Also</h3> <p class="para"> <ul class="simplelist"> <li class="member"><a href="language.variables.external.html" class="link">Handling external variables</a></li> <li class="member"><a href="book.filter.html" class="link">The filter extension</a></li> </ul> </p> </div></div><hr /><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="reserved.variables.server.html">$_SERVER</a></div> <div class="next" style="text-align: right; float: right;"><a href="reserved.variables.post.html">$_POST</a></div> <div class="up"><a href="reserved.variables.html">Predefined variables</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div></body></html>⌨️ 快捷键说明
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