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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>Returns an array of all defined functions</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="function.function-exists.html">function_exists</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.register-shutdown-function.html">register_shutdown_function</a></div> <div class="up"><a href="ref.funchand.html">Function handling Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div><hr /><div id="function.get-defined-functions" class="refentry"> <div class="refnamediv"> <h1 class="refname">get_defined_functions</h1> <p class="verinfo">(PHP 4 >= 4.0.4, PHP 5)</p><p class="refpurpose"><span class="refname">get_defined_functions</span> — <span class="dc-title">Returns an array of all defined functions</span></p> </div> <div class="refsect1 description"> <h3 class="title">Description</h3> <div class="methodsynopsis dc-description"> <span class="type">array</span> <span class="methodname"><b><b>get_defined_functions</b></b></span> ( <span class="methodparam">void</span> )</div> <p class="para rdfs-comment"> Gets an array of all defined functions. </p> </div> <div class="refsect1 returnvalues"> <h3 class="title">Return Values</h3> <p class="para"> Returns an multidimensional array containing a list of all defined functions, both built-in (internal) and user-defined. The internal functions will be accessible via <var class="varname">$arr["internal"]</var>, and the user defined ones using <var class="varname">$arr["user"]</var> (see example below). </p> </div> <div class="refsect1 examples"> <h3 class="title">Examples</h3> <p class="para"> <div class="example"> <p><b>Example #1 <b>get_defined_functions()</b> 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">function </span><span style="color: #0000BB">myrow</span><span style="color: #007700">(</span><span style="color: #0000BB">$id</span><span style="color: #007700">, </span><span style="color: #0000BB">$data</span><span style="color: #007700">)<br />{<br /> return </span><span style="color: #DD0000">"<tr><th>$id</th><td>$data</td></tr>\n"</span><span style="color: #007700">;<br />}<br /><br /></span><span style="color: #0000BB">$arr </span><span style="color: #007700">= </span><span style="color: #0000BB">get_defined_functions</span><span style="color: #007700">();<br /><br /></span><span style="color: #0000BB">print_r</span><span style="color: #007700">(</span><span style="color: #0000BB">$arr</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">?></span></span></code></div> </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>Array( [internal] => Array ( [0] => zend_version [1] => func_num_args [2] => func_get_arg [3] => func_get_args [4] => strlen [5] => strcmp [6] => strncmp ... [750] => bcscale [751] => bccomp ) [user] => Array ( [0] => myrow ))</pre></div> </pre></div> </div> </p> </div> <div class="refsect1 seealso"> <h3 class="title">See Also</h3> <p class="para"> <ul class="simplelist"> <li class="member"><a href="function.function-exists.html" class="function" rel="rdfs-seeAlso">function_exists()</a></li> <li class="member"><a href="function.get-defined-vars.html" class="function" rel="rdfs-seeAlso">get_defined_vars()</a></li> <li class="member"><a href="function.get-defined-constants.html" class="function" rel="rdfs-seeAlso">get_defined_constants()</a></li> <li class="member"><a href="function.get-declared-classes.html" class="function" rel="rdfs-seeAlso">get_declared_classes()</a></li> </ul> </p> </div></div><hr /><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.function-exists.html">function_exists</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.register-shutdown-function.html">register_shutdown_function</a></div> <div class="up"><a href="ref.funchand.html">Function handling Functions</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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