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<h1 class="refname">ReflectionClass::isInstance</h1>
<p class="verinfo">(PHP 5)</p><p class="refpurpose"><span class="refname">ReflectionClass::isInstance</span> — <span class="dc-title">Checks class for instance</span></p>
</div>
<div class="refsect1 description" id="refsect1-reflectionclass.isinstance-description">
<h3 class="title">Description</h3>
<div class="methodsynopsis dc-description">
<span class="modifier">public</span> <span class="type">bool</span> <span class="methodname"><strong>ReflectionClass::isInstance</strong></span>
( <span class="methodparam"><span class="type">object</span> <code class="parameter">$object</code></span>
)</div>
<p class="para rdfs-comment">
Checks if an object is an instance of a class.
</p>
</div>
<div class="refsect1 parameters" id="refsect1-reflectionclass.isinstance-parameters">
<h3 class="title">Parameters</h3>
<p class="para">
<dl>
<dt>
<span class="term"><em><code class="parameter">object</code></em></span>
<dd>
<p class="para">
The object being compared to.
</p>
</dd>
</dt>
</dl>
</p>
</div>
<div class="refsect1 returnvalues" id="refsect1-reflectionclass.isinstance-returnvalues">
<h3 class="title">Return Values</h3>
<p class="para">
Returns <strong><code>TRUE</code></strong> on success or <strong><code>FALSE</code></strong> on failure.
</p>
</div>
<div class="refsect1 examples" id="refsect1-reflectionclass.isinstance-examples">
<h3 class="title">Examples</h3>
<p class="para">
<div class="example" id="example-5206">
<p><strong>Example #1 <span class="methodname"><strong>ReflectionClass::isInstance()</strong></span> related examples</strong></p>
<div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB"><?php<br /></span><span style="color: #FF8000">// Example usage<br /></span><span style="color: #0000BB">$class </span><span style="color: #007700">= new </span><span style="color: #0000BB">ReflectionClass</span><span style="color: #007700">(</span><span style="color: #DD0000">'Foo'</span><span style="color: #007700">);<br /><br />if (</span><span style="color: #0000BB">$class</span><span style="color: #007700">-></span><span style="color: #0000BB">isInstance</span><span style="color: #007700">(</span><span style="color: #0000BB">$arg</span><span style="color: #007700">)) {<br /> echo </span><span style="color: #DD0000">"Yes"</span><span style="color: #007700">;<br />}<br /><br /></span><span style="color: #FF8000">// Equivalent to<br /></span><span style="color: #007700">if (</span><span style="color: #0000BB">$arg </span><span style="color: #007700">instanceof </span><span style="color: #0000BB">Foo</span><span style="color: #007700">) {<br /> echo </span><span style="color: #DD0000">"Yes"</span><span style="color: #007700">;<br />}<br /><br /></span><span style="color: #FF8000">// Equivalent to<br /></span><span style="color: #007700">if (</span><span style="color: #0000BB">is_a</span><span style="color: #007700">(</span><span style="color: #0000BB">$arg</span><span style="color: #007700">, </span><span style="color: #DD0000">'Foo'</span><span style="color: #007700">)) {<br /> echo </span><span style="color: #DD0000">"Yes"</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
something similar to:</p></div>
<div class="example-contents screen">
<div class="cdata"><pre>
Yes
Yes
Yes
</pre></div>
</div>
</div>
</p>
</div>
<div class="refsect1 seealso" id="refsect1-reflectionclass.isinstance-seealso">
<h3 class="title">See Also</h3>
<p class="para">
<ul class="simplelist">
<li class="member"> <span class="methodname"><a href="reflectionclass.isinterface.html" class="methodname" rel="rdfs-seeAlso">ReflectionClass::isInterface()</a> - Checks if the class is an interface</span></li>
<li class="member"><a href="language.operators.type.html" class="link">Type operators (instanceof)</a></li>
<li class="member"><a href="language.oop5.interfaces.html" class="link">Object Interfaces</a></li>
<li class="member"> <span class="function"><a href="function.is-a.html" class="function" rel="rdfs-seeAlso">is_a()</a> - Checks if the object is of this class or has this class as one of its parents</span></li>
</ul>
</p>
</div>
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