function.abs.html

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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html> <head>  <title>Absolute value</title>  <meta http-equiv="content-type" content="text/html; charset=UTF-8"> </head> <body><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="ref.math.html">Math Functions</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.acos.html">acos</a></div> <div class="up"><a href="ref.math.html">Math Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div><hr /><div id="function.abs" class="refentry"> <div class="refnamediv">  <h1 class="refname">abs</h1>  <p class="verinfo">(PHP 4, PHP 5)</p><p class="refpurpose"><span class="refname">abs</span> &mdash; <span class="dc-title">Absolute value</span></p> </div> <div class="refsect1 description">  <h3 class="title">Description</h3>   <div class="methodsynopsis dc-description">    <span class="type"><a href="language.pseudo-types.html#language.types.number" class="type number">number</a></span> <span class="methodname"><b><b>abs</b></b></span>     ( <span class="methodparam"><span class="type"><a href="language.pseudo-types.html#language.types.mixed" class="type mixed">mixed</a></span> <tt class="parameter">$number</tt></span>    )</div>  <p class="para rdfs-comment">   Returns the absolute value of <i><tt class="parameter">number</tt></i>.   </p> </div> <div class="refsect1 parameters">  <h3 class="title">Parameters</h3>  <p class="para">   <dl>    <dt>     <span class="term"><i><tt class="parameter">number</tt></i></span>     <dd>      <p class="para">       The numeric value to process      </p>     </dd>    </dt>   </dl>  </p> </div> <div class="refsect1 returnvalues">  <h3 class="title">Return Values</h3>  <p class="para">   The absoulte value of <i><tt class="parameter">number</tt></i>. If the   argument <i><tt class="parameter">number</tt></i> is   of type <a href="language.types.float.html" class="type float">float</a>, the return type is also <a href="language.types.float.html" class="type float">float</a>,   otherwise it is <a href="language.types.integer.html" class="type integer">integer</a> (as <a href="language.types.float.html" class="type float">float</a> usually has a   bigger value range than <a href="language.types.integer.html" class="type integer">integer</a>).  </p> </div> <div class="refsect1 examples">  <h3 class="title">Examples</h3>  <p class="para">   <div class="example">    <p><b>Example #1 <b>abs()</b> example</b></p>    <div class="example-contents"><div class="phpcode"><code><span style="color: #000000"><span style="color: #0000BB">&lt;?php<br />$abs&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">abs</span><span style="color: #007700">(-</span><span style="color: #0000BB">4.2</span><span style="color: #007700">);&nbsp;</span><span style="color: #FF8000">//&nbsp;$abs&nbsp;=&nbsp;4.2;&nbsp;(double/float)<br /></span><span style="color: #0000BB">$abs2&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">abs</span><span style="color: #007700">(</span><span style="color: #0000BB">5</span><span style="color: #007700">);&nbsp;&nbsp;&nbsp;</span><span style="color: #FF8000">//&nbsp;$abs2&nbsp;=&nbsp;5;&nbsp;(integer)<br /></span><span style="color: #0000BB">$abs3&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">abs</span><span style="color: #007700">(-</span><span style="color: #0000BB">5</span><span style="color: #007700">);&nbsp;&nbsp;</span><span style="color: #FF8000">//&nbsp;$abs3&nbsp;=&nbsp;5;&nbsp;(integer)<br /></span><span style="color: #0000BB">?&gt;</span></span></code></div>    </div>   </div>  </p> </div></div><hr /><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="ref.math.html">Math Functions</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.acos.html">acos</a></div> <div class="up"><a href="ref.math.html">Math Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div></body></html>

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