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>
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<title>Absolutwert bzw. Betrag</title>
</head>
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</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> — <span class="dc-title">Absolutwert bzw. Betrag</span></p>
</div>
<div class="refsect1 description" id="refsect1-function.abs-description">
<h3 class="title">Beschreibung</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"><strong>abs</strong></span>
( <span class="methodparam"><span class="type"><a href="language.pseudo-types.html#language.types.mixed" class="type mixed">mixed</a></span> <code class="parameter">$number</code></span>
)</div>
<p class="para rdfs-comment">
Liefert den Betrag des Wertes <code class="parameter">number</code>
ohne Vorzeichen.
</p>
</div>
<div class="refsect1 parameters" id="refsect1-function.abs-parameters">
<h3 class="title">Parameter-Liste</h3>
<p class="para">
<dl>
<dt>
<code class="parameter">number</code></dt>
<dd>
<p class="para">
Der zu bearbeitende Wert
</p>
</dd>
</dl>
</p>
</div>
<div class="refsect1 returnvalues" id="refsect1-function.abs-returnvalues">
<h3 class="title">Rückgabewerte</h3>
<p class="para">
Der Betrag des Wertes <code class="parameter">number</code>.
Ist <code class="parameter">number</code> vom Typ <span class="type"><a href="language.types.float.html" class="type float">float</a></span>,
so ist auch das Ergebnis von diesem Typ, ansonsten wird
das Ergebnis als <span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span> zurückgegeben
(da <span class="type"><a href="language.types.float.html" class="type float">float</a></span> einen größeren Wertebereich als
<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span> hat).
</p>
</div>
<div class="refsect1 examples" id="refsect1-function.abs-examples">
<h3 class="title">Beispiele</h3>
<p class="para">
<div class="example" id="example-3385">
<p><strong>Beispiel #1 <span class="function"><strong>abs()</strong></span>-Beispiel</strong></p>
<div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB"><?php<br />$abs </span><span style="color: #007700">= </span><span style="color: #0000BB">abs</span><span style="color: #007700">(-</span><span style="color: #0000BB">4.2</span><span style="color: #007700">); </span><span style="color: #FF8000">// $abs = 4.2; (double/float)<br /></span><span style="color: #0000BB">$abs2 </span><span style="color: #007700">= </span><span style="color: #0000BB">abs</span><span style="color: #007700">(</span><span style="color: #0000BB">5</span><span style="color: #007700">); </span><span style="color: #FF8000">// $abs2 = 5; (integer)<br /></span><span style="color: #0000BB">$abs3 </span><span style="color: #007700">= </span><span style="color: #0000BB">abs</span><span style="color: #007700">(-</span><span style="color: #0000BB">5</span><span style="color: #007700">); </span><span style="color: #FF8000">// $abs3 = 5; (integer)<br /></span><span style="color: #0000BB">?></span>
</span>
</code></div>
</div>
</div>
</p>
</div>
<div class="refsect1 seealso" id="refsect1-function.abs-seealso">
<h3 class="title">Siehe auch</h3>
<p class="para">
<ul class="simplelist">
<li class="member"><span class="function"><a href="function.gmp-abs.html" class="function" rel="rdfs-seeAlso">gmp_abs()</a> - Absolute value</span></li>
<li class="member"><span class="function"><a href="function.gmp-sign.html" class="function" rel="rdfs-seeAlso">gmp_sign()</a> - Sign of number</span></li>
</ul>
</p>
</div>
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