<HTML ><HEAD ><TITLE >hexdec</TITLE ><META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.7"><LINK REL="HOME" TITLE="PHP Manual" HREF="index.html"><LINK REL="UP" TITLE="Mathematical Functions" HREF="ref.math.html"><LINK REL="PREVIOUS" TITLE="getrandmax" HREF="function.getrandmax.html"><LINK REL="NEXT" TITLE="hypot" HREF="function.hypot.html"><META HTTP-EQUIV="Content-type" CONTENT="text/html; charset=ISO-8859-1"></HEAD ><BODY CLASS="refentry" BGCOLOR="#FFFFFF" TEXT="#000000" LINK="#0000FF" VLINK="#840084" ALINK="#0000FF" ><DIV CLASS="NAVHEADER" ><TABLE SUMMARY="Header navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TH COLSPAN="3" ALIGN="center" >PHP Manual</TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="bottom" ><A HREF="function.getrandmax.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="function.hypot.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="function.hexdec" ></A >hexdec</H1 ><DIV CLASS="refnamediv" ><A NAME="AEN44774" ></A ><P > (PHP 3, PHP 4 )</P >hexdec -- Hexadecimal to decimal</DIV ><DIV CLASS="refsect1" ><A NAME="AEN44777" ></A ><H2 >Description</H2 >int <B CLASS="methodname" >hexdec</B > ( string hex_string)<BR ></BR ><P > Returns the decimal equivalent of the hexadecimal number represented by the <TT CLASS="parameter" ><I >hex_string</I ></TT > argument. <B CLASS="function" >hexdec()</B > converts a hexadecimal string to a decimal number. The largest number that can be converted is 7fffffff or 2147483647 in decimal. </P ><P > <B CLASS="function" >hexdec()</B > will replace of any non-hexadecimal characters it encounters by <TT CLASS="literal" >0</TT >. This way, all left zeros are ignored, but right zeros will be valued. <TABLE WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" CLASS="EXAMPLE" ><TR ><TD ><DIV CLASS="example" ><A NAME="AEN44791" ></A ><P ><B >Example 1. <B CLASS="function" >hexdec()</B > example</B ></P ><TABLE BORDER="0" BGCOLOR="#E0E0E0" CELLPADDING="5" ><TR ><TD ><PRE CLASS="php" >var_dump(hexdec("See")); var_dump(hexdec("ee")); // both prints "int(238)" var_dump(hexdec("that")); var_dump(hexdec("a0")); // both prints int(160)</PRE ></TD ></TR ></TABLE ></DIV ></TD ></TR ></TABLE > </P ><P > See also <A HREF="function.dechex.html" ><B CLASS="function" >dechex()</B ></A >. </P ></DIV ><DIV CLASS="NAVFOOTER" ><HR ALIGN="LEFT" WIDTH="100%"><TABLE SUMMARY="Footer navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" ><A HREF="function.getrandmax.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="index.html" ACCESSKEY="H" >Home</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><A HREF="function.hypot.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >getrandmax</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="ref.math.html" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >hypot</TD ></TR ></TABLE ></DIV ></BODY ></HTML >