Source of: /manual/en/function.restore-exception-handler.php
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<div id="function.restore-exception-handler" class="refentry">
<div class="refnamediv">
<h1 class="refname">restore_exception_handler</h1>
<p class="verinfo">(PHP 5)</p><p class="refpurpose"><span class="refname">restore_exception_handler</span> — <span class="dc-title">
Restores the previously defined exception handler function
</span></p>
</div>
<a name="function.restore-exception-handler.description"></a><div class="refsect1 description">
<h3 class="title">Description</h3>
<div class="methodsynopsis dc-description">
<span class="type">bool</span> <span class="methodname"><b>restore_exception_handler</b></span>
( <span class="methodparam">void</span>
)</div>
<p class="para rdfs-comment">
Used after changing the exception handler function using
<a href="function.set-exception-handler.php" class="function">set_exception_handler()</a>, to revert to the previous
exception handler (which could be the built-in or a user defined
function).
</p>
</div>
<a name="function.restore-exception-handler.returnvalues"></a><div class="refsect1 returnvalues">
<h3 class="title">Return Values</h3>
<p class="para">
This function always returns <b><tt class="constant">TRUE</tt></b>.
</p>
</div>
<a name="function.restore-exception-handler.examples"></a><div class="refsect1 examples">
<h3 class="title">Examples</h3>
<p class="para">
</p><div class="example">
<p><b>Example #1 <b>restore_exception_handler()</b> example</b></p>
<div class="example-contents programlisting">
<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">exception_handler_1</span><span style="color: #007700">(</span><span style="color: #0000BB">Exception $e</span><span style="color: #007700">)<br /> {<br /> echo </span><span style="color: #DD0000">'[' </span><span style="color: #007700">. </span><span style="color: #0000BB">__FUNCTION__ </span><span style="color: #007700">. </span><span style="color: #DD0000">'] ' </span><span style="color: #007700">. </span><span style="color: #0000BB">$e</span><span style="color: #007700">-></span><span style="color: #0000BB">getMessage</span><span style="color: #007700">();<br /> }<br /><br /> function </span><span style="color: #0000BB">exception_handler_2</span><span style="color: #007700">(</span><span style="color: #0000BB">Exception $e</span><span style="color: #007700">)<br /> {<br /> echo </span><span style="color: #DD0000">'[' </span><span style="color: #007700">. </span><span style="color: #0000BB">__FUNCTION__ </span><span style="color: #007700">. </span><span style="color: #DD0000">'] ' </span><span style="color: #007700">. </span><span style="color: #0000BB">$e</span><span style="color: #007700">-></span><span style="color: #0000BB">getMessage</span><span style="color: #007700">();<br /> }<br /><br /> </span><span style="color: #0000BB">set_exception_handler</span><span style="color: #007700">(</span><span style="color: #DD0000">'exception_handler_1'</span><span style="color: #007700">);<br /> </span><span style="color: #0000BB">set_exception_handler</span><span style="color: #007700">(</span><span style="color: #DD0000">'exception_handler_2'</span><span style="color: #007700">);<br /><br /> </span><span style="color: #0000BB">restore_exception_handler</span><span style="color: #007700">();<br /><br /> throw new </span><span style="color: #0000BB">Exception</span><span style="color: #007700">(</span><span style="color: #DD0000">'This triggers the first exception handler...'</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">?></span>
</span>
</code></div>
</div>
<div class="example-contents para"><p>The above example will output:</p></div>
<div class="example-contents screen">
<div class="cdata"><pre>
[exception_handler_1] This triggers the first exception handler...
</pre></div>
</div>
</div><p>
</p>
</div>
<a name="function.restore-exception-handler.seealso"></a><div class="refsect1 seealso">
<h3 class="title">See Also</h3>
<p class="para">
</p><ul class="simplelist">
<li class="member"><a href="function.set-exception-handler.php" class="function" rel="rdfs-seeAlso">set_exception_handler()</a> - Sets a user-defined exception handler function</li>
<li class="member"><a href="function.set-error-handler.php" class="function" rel="rdfs-seeAlso">set_error_handler()</a> - Sets a user-defined error handler function</li>
<li class="member"><a href="function.restore-error-handler.php" class="function" rel="rdfs-seeAlso">restore_error_handler()</a> - Restores the previous error handler function</li>
<li class="member"><a href="function.error-reporting.php" class="function" rel="rdfs-seeAlso">error_reporting()</a> - Sets which PHP errors are reported</li>
</ul><p>
</p>
</div>
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