Source of: /manual/en/function.proc-nice.php


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<div id="function.proc-nice" class="refentry">

 <div class="refnamediv">

  <h1 class="refname">proc_nice</h1>

  <p class="verinfo">(PHP 5)</p><p class="refpurpose"><span class="refname">proc_nice</span> &mdash; <span class="dc-title">Change the priority of the current process</span></p>



 </div>



 <a name="function.proc-nice.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>proc_nice</b></span>

    ( <span class="methodparam"><span class="type">int</span> <tt class="parameter">$increment</tt></span>

   )</div>



  <p class="para rdfs-comment">

   <b>proc_nice()</b> changes the priority of the current

   process by the amount specified in <i><tt class="parameter">increment</tt></i>

. A

   positive <i><tt class="parameter">increment</tt></i>

 will lower the priority of the

   current process, whereas a negative <i><tt class="parameter">increment</tt></i>



   will raise the priority.

  </p>

  <p class="para">

   <b>proc_nice()</b> is not related to

   <a href="function.proc-open.php" class="function">proc_open()</a> and its associated functions in any way.

  </p>

 </div>





 <a name="function.proc-nice.parameters"></a><div class="refsect1 parameters">

  <h3 class="title">Parameters</h3>

  <p class="para">

   </p><dl>



    <dt class="varlistentry">



     <span class="term"><i><tt class="parameter">increment</tt></i>

</span>



     </dt><dd class="listitem">



      <p class="para">

       The increment value of the priority change.

      </p>

     </dd>



    

   </dl>

<p>

  </p>

 </div>





 <a name="function.proc-nice.returnvalues"></a><div class="refsect1 returnvalues">

  <h3 class="title">Return Values</h3>

  <p class="para">

   Returns <b><tt class="constant">TRUE</tt></b> on success or <b><tt class="constant">FALSE</tt></b> on failure.

   If an error occurs, like the user lacks permission to change the priority, 

   an error of level <b><tt class="constant">E_WARNING</tt></b> is also generated.

  </p>

 </div>





 <a name="function.proc-nice.notes"></a><div class="refsect1 notes">

  <h3 class="title">Notes</h3>

  <blockquote><p><b class="note">Note</b>: 

   <b>Availability</b><br />

   

    <b>proc_nice()</b> will only exist if your system has &#039;nice&#039;

    capabilities. &#039;nice&#039; conforms to: SVr4, SVID EXT, AT&amp;T, X/OPEN, BSD

    4.3. This means that <b>proc_nice()</b> is not available

    on Windows.

   <br />

  </p></blockquote>

 </div>



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Source of: /manual/en/function.proc-nice.php
