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<title>Close a process opened by proc_open and return the exit code of that process</title>
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<h1 class="refname">proc_close</h1>
<p class="verinfo">(PHP 4 >= 4.3.0, PHP 5, PHP 7)</p><p class="refpurpose"><span class="refname">proc_close</span> — <span class="dc-title">Close a process opened by <span class="function"><a href="function.proc-open.html" class="function">proc_open()</a></span> and return the exit code of that process</span></p>
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<div class="refsect1 description" id="refsect1-function.proc-close-description">
<h3 class="title">Description</h3>
<div class="methodsynopsis dc-description">
<span class="type">int</span> <span class="methodname"><strong>proc_close</strong></span>
( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$process</code></span>
)</div>
<p class="para rdfs-comment">
<span class="function"><strong>proc_close()</strong></span> is similar to <span class="function"><a href="function.pclose.html" class="function">pclose()</a></span>
except that it only works on processes opened by
<span class="function"><a href="function.proc-open.html" class="function">proc_open()</a></span>.
<span class="function"><strong>proc_close()</strong></span> waits for the process to terminate, and
returns its exit code. If you have open pipes to that process, you
should <span class="function"><a href="function.fclose.html" class="function">fclose()</a></span> them prior to calling this function in
order to avoid a deadlock - the child process may not be able to exit
while the pipes are open.
</p>
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<div class="refsect1 parameters" id="refsect1-function.proc-close-parameters">
<h3 class="title">Parameters</h3>
<p class="para">
<dl>
<dt>
<code class="parameter">process</code></dt>
<dd>
<p class="para">
The <span class="function"><a href="function.proc-open.html" class="function">proc_open()</a></span> <span class="type"><a href="language.types.resource.html" class="type resource">resource</a></span> that will
be closed.
</p>
</dd>
</dl>
</p>
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<div class="refsect1 returnvalues" id="refsect1-function.proc-close-returnvalues">
<h3 class="title">Return Values</h3>
<p class="para">
Returns the termination status of the process that was run. In case of
an error then <em>-1</em> is returned.
</p>
<blockquote class="note"><p><strong class="note">Note</strong>:
<p class="para">
If PHP has been compiled with --enable-sigchild, the return value of this function is undefined.
</p>
</p></blockquote>
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