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<title>Constructs a new weak reference</title>
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<h1 class="refname">Weakref::__construct</h1>
<p class="verinfo">(PECL weakref >= 0.1.0)</p><p class="refpurpose"><span class="refname">Weakref::__construct</span> — <span class="dc-title">Constructs a new weak reference</span></p>
</div>
<div class="refsect1 description" id="refsect1-weakref.construct-description">
<h3 class="title">Description</h3>
<div class="constructorsynopsis dc-description">
<span class="modifier">public</span> <span class="methodname"><strong>Weakref::__construct()</strong></span>
([ <span class="methodparam"><span class="type">object</span> <code class="parameter">$object</code></span>
] )</div>
<p class="para rdfs-comment">
Constructs a new weak reference.
</p>
</div>
<div class="refsect1 parameters" id="refsect1-weakref.construct-parameters">
<h3 class="title">Parameters</h3>
<p class="para">
<dl>
<dt>
<span class="term"><em><code class="parameter">object</code></em></span>
<dd>
<p class="para">
The object to reference.
</p>
</dd>
</dt>
</dl>
</p>
</div>
<div class="refsect1 returnvalues" id="refsect1-weakref.construct-returnvalues">
<h3 class="title">Return Values</h3>
<p class="para">
No value is returned.
</p>
</div>
<div class="refsect1 examples" id="refsect1-weakref.construct-examples">
<h3 class="title">Examples</h3>
<p class="para">
<div class="example" id="example-551">
<p><strong>Example #1 <span class="methodname"><strong>Weakref::__construct()</strong></span> example</strong></p>
<div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB"><?php<br /></span><span style="color: #007700">class </span><span style="color: #0000BB">MyClass </span><span style="color: #007700">{<br /> public function </span><span style="color: #0000BB">__destruct</span><span style="color: #007700">() {<br /> echo </span><span style="color: #DD0000">"Destroying object!\n"</span><span style="color: #007700">;<br /> }<br />}<br /><br /></span><span style="color: #0000BB">$o1 </span><span style="color: #007700">= new </span><span style="color: #0000BB">MyClass</span><span style="color: #007700">;<br /><br /></span><span style="color: #0000BB">$r1 </span><span style="color: #007700">= new </span><span style="color: #0000BB">Weakref</span><span style="color: #007700">(</span><span style="color: #0000BB">$o1</span><span style="color: #007700">);<br /><br />if (</span><span style="color: #0000BB">$r1</span><span style="color: #007700">-></span><span style="color: #0000BB">valid</span><span style="color: #007700">()) {<br /> echo </span><span style="color: #DD0000">"Object still exists!\n"</span><span style="color: #007700">;<br /> </span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">$r1</span><span style="color: #007700">-></span><span style="color: #0000BB">get</span><span style="color: #007700">());<br />} else {<br /> echo </span><span style="color: #DD0000">"Object is dead!\n"</span><span style="color: #007700">;<br />}<br /><br />unset(</span><span style="color: #0000BB">$o1</span><span style="color: #007700">);<br /><br />if (</span><span style="color: #0000BB">$r1</span><span style="color: #007700">-></span><span style="color: #0000BB">valid</span><span style="color: #007700">()) {<br /> echo </span><span style="color: #DD0000">"Object still exists!\n"</span><span style="color: #007700">;<br /> </span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">$r1</span><span style="color: #007700">-></span><span style="color: #0000BB">get</span><span style="color: #007700">());<br />} else {<br /> echo </span><span style="color: #DD0000">"Object is dead!\n"</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>
Object still exists!
object(MyClass)#1 (0) {
}
Destroying object!
Object is dead!
</pre></div>
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