function.hexdec.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>Hexadecimal to decimal</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="function.getrandmax.html">getrandmax</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.hypot.html">hypot</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.hexdec" class="refentry"> <div class="refnamediv"> <h1 class="refname">hexdec</h1> <p class="verinfo">(PHP 4, PHP 5)</p><p class="refpurpose"><span class="refname">hexdec</span> — <span class="dc-title">Hexadecimal to decimal</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>hexdec</b></b></span> ( <span class="methodparam"><span class="type">string</span> <tt class="parameter">$hex_string</tt></span> )</div> <p class="para rdfs-comment"> Returns the decimal equivalent of the hexadecimal number represented by the <i><tt class="parameter">hex_string</tt></i> argument. <b>hexdec()</b> converts a hexadecimal string to a decimal number. </p> <p class="para"> <b>hexdec()</b> will ignore any non-hexadecimal characters it encounters. </p> </div> <div class="refsect1 parameters"> <h3 class="title">Parameters</h3> <p class="para"> <dl> <dt> <span class="term"><i><tt class="parameter">hex_string</tt></i></span> <dd> <p class="para"> The hexadecimal string to convert </p> </dd> </dt> </dl> </p> </div> <div class="refsect1 returnvalues"> <h3 class="title">Return Values</h3> <p class="para"> The decimal representation of <i><tt class="parameter">hex_string</tt></i> </p> </div> <div class="refsect1 changelog"> <h3 class="title">ChangeLog</h3> <p class="para"> <table class="informaltable"> <colgroup> <thead valign="middle"> <tr valign="middle"> <th colspan="1">Version</th> <th colspan="1">Description</th> </tr> </thead> <tbody valign="middle" class="tbody"> <tr valign="middle"> <td colspan="1" rowspan="1" align="left">Since 4.1.0</td> <td colspan="1" rowspan="1" align="left"> The function can now convert values that are to big for the platforms <a href="language.types.integer.html" class="type integer">integer</a> type, it will return the value as <a href="language.types.float.html" class="type float">float</a> instead in that case. </td> </tr> </tbody> </colgroup> </table> </p> </div> <div class="refsect1 examples"> <h3 class="title">Examples</h3> <p class="para"> <div class="example"> <p><b>Example #1 <b>hexdec()</b> example</b></p> <div class="example-contents"><div class="phpcode"><code><span style="color: #000000"><span style="color: #0000BB"><?php<br />var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">hexdec</span><span style="color: #007700">(</span><span style="color: #DD0000">"See"</span><span style="color: #007700">));<br /></span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">hexdec</span><span style="color: #007700">(</span><span style="color: #DD0000">"ee"</span><span style="color: #007700">));<br /></span><span style="color: #FF8000">// both print "int(238)"<br /><br /></span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">hexdec</span><span style="color: #007700">(</span><span style="color: #DD0000">"that"</span><span style="color: #007700">)); </span><span style="color: #FF8000">// print "int(10)"<br /></span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">hexdec</span><span style="color: #007700">(</span><span style="color: #DD0000">"a0"</span><span style="color: #007700">)); </span><span style="color: #FF8000">// print "int(160)"<br /></span><span style="color: #0000BB">?></span></span></code></div> </div> </div> </p> </div> <div class="refsect1 seealso"> <h3 class="title">See Also</h3> <p class="para"> <ul class="simplelist"> <li class="member"><a href="function.dechex.html" class="function" rel="rdfs-seeAlso">dechex()</a></li> <li class="member"><a href="function.bindec.html" class="function" rel="rdfs-seeAlso">bindec()</a></li> <li class="member"><a href="function.octdec.html" class="function" rel="rdfs-seeAlso">octdec()</a></li> <li class="member"><a href="function.base-convert.html" class="function" rel="rdfs-seeAlso">base_convert()</a></li> </ul> </p> </div></div><hr /><div style="text-align: center;"> <div class="prev" style="text-align: left; 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