Source of: /manual/en/function.debug-print-backtrace.php
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<div id="function.debug-print-backtrace" class="refentry">
<div class="refnamediv">
<h1 class="refname">debug_print_backtrace</h1>
<p class="verinfo">(PHP 5)</p><p class="refpurpose"><span class="refname">debug_print_backtrace</span> — <span class="dc-title">
Prints a backtrace
</span></p>
</div>
<a name="function.debug-print-backtrace.description"></a><div class="refsect1 description">
<h3 class="title">Description</h3>
<div class="methodsynopsis dc-description">
<span class="type"><span class="type void">void</span></span> <span class="methodname"><b>debug_print_backtrace</b></span>
( <span class="methodparam">void</span>
)</div>
<p class="para rdfs-comment">
<b>debug_print_backtrace()</b> prints a PHP backtrace. It
prints the function calls, included/required files and
<a href="function.eval.php" class="function">eval()</a>ed stuff.
</p>
</div>
<a name="function.debug-print-backtrace.parameters"></a><div class="refsect1 parameters">
<h3 class="title">Parameters</h3>
<p class="para">
This function has no parameters.
</p>
</div>
<a name="function.debug-print-backtrace.returnvalues"></a><div class="refsect1 returnvalues">
<h3 class="title">Return Values</h3>
<p class="para">
No value is returned.
</p>
</div>
<a name="function.debug-print-backtrace.examples"></a><div class="refsect1 examples">
<h3 class="title">Examples</h3>
<p class="para">
</p><div class="example">
<p><b>Example #1 <b>debug_print_backtrace()</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: #FF8000">// include.php file<br /><br /></span><span style="color: #007700">function </span><span style="color: #0000BB">a</span><span style="color: #007700">() {<br /> </span><span style="color: #0000BB">b</span><span style="color: #007700">();<br />}<br /><br />function </span><span style="color: #0000BB">b</span><span style="color: #007700">() {<br /> </span><span style="color: #0000BB">c</span><span style="color: #007700">();<br />}<br /><br />function </span><span style="color: #0000BB">c</span><span style="color: #007700">(){<br /> </span><span style="color: #0000BB">debug_print_backtrace</span><span style="color: #007700">();<br />}<br /><br /></span><span style="color: #0000BB">a</span><span style="color: #007700">();<br /><br /></span><span style="color: #0000BB">?></span>
</span>
</code></div>
</div>
<div class="example-contents programlisting">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB"><?php<br /></span><span style="color: #FF8000">// test.php file<br />// this is the file you should run<br /><br /></span><span style="color: #007700">include </span><span style="color: #DD0000">'include.php'</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
something similar to:</p></div>
<div class="example-contents screen">
<div class="cdata"><pre>
#0 eval() called at [/tmp/include.php:5]
#1 a() called at [/tmp/include.php:17]
#2 include(/tmp/include.php) called at [/tmp/test.php:3]
#0 c() called at [/tmp/include.php:10]
#1 b() called at [/tmp/include.php:6]
#2 a() called at [/tmp/include.php:17]
#3 include(/tmp/include.php) called at [/tmp/test.php:3]
</pre></div>
</div>
</div><p>
</p>
</div>
<a name="function.debug-print-backtrace.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.debug-backtrace.php" class="function" rel="rdfs-seeAlso">debug_backtrace()</a> - Generates a backtrace</li>
</ul><p>
</p>
</div>
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