<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <title>Returns the name of the class of an object</title> </head> <body><div class="manualnavbar" style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.get-class-vars.html">get_class_vars</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.get-declared-classes.html">get_declared_classes</a></div> <div class="up"><a href="ref.classobj.html">Classes/Object Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div> </div><hr /><div id="function.get-class" class="refentry"> <div class="refnamediv"> <h1 class="refname">get_class</h1> <p class="verinfo">(PHP 4, PHP 5)</p><p class="refpurpose"><span class="refname">get_class</span> — <span class="dc-title">Returns the name of the class of an object</span></p> </div> <div class="refsect1 description" id="refsect1-function.get-class-description"> <h3 class="title">Description</h3> <div class="methodsynopsis dc-description"> <span class="type">string</span> <span class="methodname"><strong>get_class</strong></span> ([ <span class="methodparam"><span class="type">object</span> <code class="parameter">$object</code><span class="initializer"> = <strong><code>NULL</code></strong></span></span> ] )</div> <p class="para rdfs-comment"> Gets the name of the class of the given <em><code class="parameter">object</code></em>. </p> </div> <div class="refsect1 parameters" id="refsect1-function.get-class-parameters"> <h3 class="title">Parameters</h3> <p class="para"> <dl> <dt> <span class="term"><em><code class="parameter">object</code></em></span> <dd> <p class="para"> The tested object. This parameter may be omitted when inside a class. </p> </dd> </dt> </dl> </p> </div> <div class="refsect1 returnvalues" id="refsect1-function.get-class-returnvalues"> <h3 class="title">Return Values</h3> <p class="para"> Returns the name of the class of which <em><code class="parameter">object</code></em> is an instance. Returns <strong><code>FALSE</code></strong> if <em><code class="parameter">object</code></em> is not an object. </p> <p class="para"> If <em><code class="parameter">object</code></em> is omitted when inside a class, the name of that class is returned. </p> </div> <div class="refsect1 errors" id="refsect1-function.get-class-errors"> <h3 class="title">Errors/Exceptions</h3> <p class="para"> If <span class="function"><strong>get_class()</strong></span> is called with anything other than an object, an <strong><code>E_WARNING</code></strong> level error is raised. </p> </div> <div class="refsect1 changelog" id="refsect1-function.get-class-changelog"> <h3 class="title">Changelog</h3> <p class="para"> <table class="doctable informaltable"> <thead> <tr> <th>Version</th> <th>Description</th> </tr> </thead> <tbody class="tbody"> <tr> <td>5.3.0</td> <td> <strong><code>NULL</code></strong> became the default value for <em><code class="parameter">object</code></em>, so passing <strong><code>NULL</code></strong> to <em><code class="parameter">object</code></em> now has the same result as not passing any value. </td> </tr> <tr> <td>5.0.0</td> <td> The class name is returned in its original notation. </td> </tr> <tr> <td>5.0.0</td> <td> The <em><code class="parameter">object</code></em> parameter is optional if called from the object's method. </td> </tr> </tbody> </table> </p> </div> <div class="refsect1 examples" id="refsect1-function.get-class-examples"> <h3 class="title">Examples</h3> <p class="para"> <div class="example" id="example-5051"> <p><strong>Example #1 Using <span class="function"><strong>get_class()</strong></span></strong></p> <div class="example-contents"> <div class="phpcode"><code><span style="color: #000000"> <span style="color: #0000BB"><?php<br /><br /></span><span style="color: #007700">class </span><span style="color: #0000BB">foo </span><span style="color: #007700">{<br /> function </span><span style="color: #0000BB">name</span><span style="color: #007700">()<br /> {<br /> echo </span><span style="color: #DD0000">"My name is " </span><span style="color: #007700">, </span><span style="color: #0000BB">get_class</span><span style="color: #007700">(</span><span style="color: #0000BB">$this</span><span style="color: #007700">) , </span><span style="color: #DD0000">"\n"</span><span style="color: #007700">;<br /> }<br />}<br /><br /></span><span style="color: #FF8000">// create an object<br /></span><span style="color: #0000BB">$bar </span><span style="color: #007700">= new </span><span style="color: #0000BB">foo</span><span style="color: #007700">();<br /><br /></span><span style="color: #FF8000">// external call<br /></span><span style="color: #007700">echo </span><span style="color: #DD0000">"Its name is " </span><span style="color: #007700">, </span><span style="color: #0000BB">get_class</span><span style="color: #007700">(</span><span style="color: #0000BB">$bar</span><span style="color: #007700">) , </span><span style="color: #DD0000">"\n"</span><span style="color: #007700">;<br /><br /></span><span style="color: #FF8000">// internal call<br /></span><span style="color: #0000BB">$bar</span><span style="color: #007700">-></span><span style="color: #0000BB">name</span><span style="color: #007700">();<br /><br /></span><span style="color: #0000BB">?></span> </span> </code></div> </div> <div class="example-contents"><p>The above example will output:</p></div> <div class="example-contents screen"> <div class="cdata"><pre> Its name is foo My name is foo </pre></div> </div> </div> <div class="example" id="example-5052"> <p><strong>Example #2 Using <span class="function"><strong>get_class()</strong></span> in superclass</strong></p> <div class="example-contents"> <div class="phpcode"><code><span style="color: #000000"> <span style="color: #0000BB"><?php<br /><br /></span><span style="color: #007700">abstract class </span><span style="color: #0000BB">bar </span><span style="color: #007700">{<br /> public function </span><span style="color: #0000BB">__construct</span><span style="color: #007700">()<br /> {<br /> </span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">get_class</span><span style="color: #007700">(</span><span style="color: #0000BB">$this</span><span style="color: #007700">));<br /> </span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">get_class</span><span style="color: #007700">());<br /> }<br />}<br /><br />class </span><span style="color: #0000BB">foo </span><span style="color: #007700">extends </span><span style="color: #0000BB">bar </span><span style="color: #007700">{<br />}<br /><br />new </span><span style="color: #0000BB">foo</span><span style="color: #007700">;<br /><br /></span><span style="color: #0000BB">?></span> </span> </code></div> </div> <div class="example-contents"><p>The above example will output:</p></div> <div class="example-contents screen"> <div class="cdata"><pre> string(3) "foo" string(3) "bar" </pre></div> </div> </div> </p> </div> <div class="refsect1 seealso" id="refsect1-function.get-class-seealso"> <h3 class="title">See Also</h3> <p class="para"> <ul class="simplelist"> <li class="member"> <span class="function"><a href="function.get-called-class.html" class="function" rel="rdfs-seeAlso">get_called_class()</a> - the "Late Static Binding" class name</span></li> <li class="member"> <span class="function"><a href="function.get-parent-class.html" class="function" rel="rdfs-seeAlso">get_parent_class()</a> - Retrieves the parent class name for object or class</span></li> <li class="member"> <span class="function"><a href="function.gettype.html" class="function" rel="rdfs-seeAlso">gettype()</a> - Get the type of a variable</span></li> <li class="member"> <span class="function"><a href="function.is-subclass-of.html" class="function" rel="rdfs-seeAlso">is_subclass_of()</a> - Checks if the object has this class as one of its parents</span></li> </ul> </p> </div> </div><hr /><div class="manualnavbar" style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.get-class-vars.html">get_class_vars</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.get-declared-classes.html">get_declared_classes</a></div> <div class="up"><a href="ref.classobj.html">Classes/Object Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div> </div></body></html>