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<h1 class="refname">proc_nice</h1>
<p class="verinfo">(PHP 5)</p><p class="refpurpose"><span class="refname">proc_nice</span> — <span class="dc-title">Change the priority of the current process</span></p>
</div>
<div class="refsect1 description" id="refsect1-function.proc-nice-description">
<h3 class="title">Description</h3>
<div class="methodsynopsis dc-description">
<span class="type">bool</span> <span class="methodname"><strong>proc_nice</strong></span>
( <span class="methodparam"><span class="type">int</span> <code class="parameter">$increment</code></span>
)</div>
<p class="para rdfs-comment">
<span class="function"><strong>proc_nice()</strong></span> changes the priority of the current
process by the amount specified in <em><code class="parameter">increment</code></em>. A
positive <em><code class="parameter">increment</code></em> will lower the priority of the
current process, whereas a negative <em><code class="parameter">increment</code></em>
will raise the priority.
</p>
<p class="para">
<span class="function"><strong>proc_nice()</strong></span> is not related to
<span class="function"><a href="function.proc-open.html" class="function">proc_open()</a></span> and its associated functions in any way.
</p>
</div>
<div class="refsect1 parameters" id="refsect1-function.proc-nice-parameters">
<h3 class="title">Parameters</h3>
<p class="para">
<dl>
<dt>
<span class="term"><em><code class="parameter">increment</code></em></span>
<dd>
<p class="para">
The increment value of the priority change.
</p>
</dd>
</dt>
</dl>
</p>
</div>
<div class="refsect1 returnvalues" id="refsect1-function.proc-nice-returnvalues">
<h3 class="title">Return Values</h3>
<p class="para">
Returns <strong><code>TRUE</code></strong> on success or <strong><code>FALSE</code></strong> on failure.
If an error occurs, like the user lacks permission to change the priority,
an error of level <strong><code>E_WARNING</code></strong> is also generated.
</p>
</div>
<div class="refsect1 notes" id="refsect1-function.proc-nice-notes">
<h3 class="title">Notes</h3>
<blockquote class="note"><p><strong class="note">Note</strong>:
<strong>Availability</strong><br />
<p class="para">
<span class="function"><strong>proc_nice()</strong></span> will only exist if your system has 'nice'
capabilities. 'nice' conforms to: SVr4, SVID EXT, AT&T, X/OPEN, BSD
4.3. This means that <span class="function"><strong>proc_nice()</strong></span> is not available
on Windows.
</p>
</p></blockquote>
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