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<title>Get process group id for job control</title>
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<h1 class="refname">posix_getpgid</h1>
<p class="verinfo">(PHP 4, PHP 5)</p><p class="refpurpose"><span class="refname">posix_getpgid</span> — <span class="dc-title">Get process group id for job control</span></p>
</div>
<div class="refsect1 description" id="refsect1-function.posix-getpgid-description">
<h3 class="title">Description</h3>
<div class="methodsynopsis dc-description">
<span class="type">int</span> <span class="methodname"><strong>posix_getpgid</strong></span>
( <span class="methodparam"><span class="type">int</span> <code class="parameter">$pid</code></span>
)</div>
<p class="para rdfs-comment">
Returns the process group identifier of the process
<em><code class="parameter">pid</code></em> or <strong><code>FALSE</code></strong> on failure.
</p>
</div>
<div class="refsect1 parameters" id="refsect1-function.posix-getpgid-parameters">
<h3 class="title">Parameters</h3>
<p class="para">
<dl>
<dt>
<span class="term"><em><code class="parameter">pid</code></em></span>
<dd>
<p class="para">
The process id.
</p>
</dd>
</dt>
</dl>
</p>
</div>
<div class="refsect1 returnvalues" id="refsect1-function.posix-getpgid-returnvalues">
<h3 class="title">Return Values</h3>
<p class="para">
Returns the identifier, as an <span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>.
</p>
</div>
<div class="refsect1 examples" id="refsect1-function.posix-getpgid-examples">
<h3 class="title">Examples</h3>
<p class="para">
<div class="example" id="example-3659">
<p><strong>Example #1 Example use of <span class="function"><strong>posix_getpgid()</strong></span></strong></p>
<div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB"><?php<br />$pid </span><span style="color: #007700">= </span><span style="color: #0000BB">posix_getppid</span><span style="color: #007700">();<br />echo </span><span style="color: #0000BB">posix_getpgid</span><span style="color: #007700">(</span><span style="color: #0000BB">$pid</span><span style="color: #007700">); </span><span style="color: #FF8000">//35<br /></span><span style="color: #0000BB">?></span>
</span>
</code></div>
</div>
</div>
</p>
</div>
<div class="refsect1 notes" id="refsect1-function.posix-getpgid-notes">
<h3 class="title">Notes</h3>
<blockquote class="note"><p><strong class="note">Note</strong>:
<p class="para">
This is a not POSIX function, but is common on BSD and System V
systems. If the system does not support this function, then it
will not be included at compile time. This may be checked with
<span class="function"><a href="function.function-exists.html" class="function">function_exists()</a></span>.
</p>
</p></blockquote>
</div>
<div class="refsect1 seealso" id="refsect1-function.posix-getpgid-seealso">
<h3 class="title">See Also</h3>
<p class="para">
<ul class="simplelist">
<li class="member"> <span class="function"><a href="function.posix-getppid.html" class="function" rel="rdfs-seeAlso">posix_getppid()</a> - Return the parent process identifier</span></li>
<li class="member">man page SETPGID(2)</li>
</ul>
</p>
</div>
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