<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <HTML ><HEAD ><TITLE >gmp_hamdist</TITLE ><META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.79"><LINK REL="HOME" TITLE="Manual do PHP" HREF="index.html"><LINK REL="UP" TITLE="GMP" HREF="ref.gmp.html"><LINK REL="PREVIOUS" TITLE="gmp_gcdext" HREF="function.gmp-gcdext.html"><LINK REL="NEXT" TITLE="gmp_init" HREF="function.gmp-init.html"><META HTTP-EQUIV="Content-type" CONTENT="text/html; charset=UTF-8"></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" >Manual do PHP</TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="bottom" ><A HREF="function.gmp-gcdext.html" ACCESSKEY="P" >Anterior</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="function.gmp-init.html" ACCESSKEY="N" >Próxima</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="function.gmp-hamdist" ></A >gmp_hamdist</H1 ><DIV CLASS="refnamediv" ><A NAME="AEN60384" ></A ><P > (PHP 4 >= 4.0.4, PHP 5)</P >gmp_hamdist -- Hamming distance</DIV ><DIV CLASS="refsect1" ><A NAME="AEN60387" ></A ><H2 >Description</H2 >int <B CLASS="methodname" >gmp_hamdist</B > ( resource a, resource b )<BR ></BR ><P > Returns the hamming distance between <CODE CLASS="parameter" >a</CODE > and <CODE CLASS="parameter" >b</CODE >. Both operands should be non-negative. </P ><TABLE WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" CLASS="EXAMPLE" ><TR ><TD ><DIV CLASS="example" ><A NAME="AEN60401" ></A ><P ><B >Exemplo 1. <B CLASS="function" >gmp_hamdist()</B > example</B ></P ><TABLE BORDER="0" BGCOLOR="#E0E0E0" CELLPADDING="5" ><TR ><TD ><code><font color="#000000"> <font color="#0000BB"><?php<br />$ham1 </font><font color="#007700">= </font><font color="#0000BB">gmp_init</font><font color="#007700">(</font><font color="#DD0000">"1001010011"</font><font color="#007700">, </font><font color="#0000BB">2</font><font color="#007700">);<br /></font><font color="#0000BB">$ham2 </font><font color="#007700">= </font><font color="#0000BB">gmp_init</font><font color="#007700">(</font><font color="#DD0000">"1011111100"</font><font color="#007700">, </font><font color="#0000BB">2</font><font color="#007700">);<br />echo </font><font color="#0000BB">gmp_hamdist</font><font color="#007700">(</font><font color="#0000BB">$ham1</font><font color="#007700">, </font><font color="#0000BB">$ham2</font><font color="#007700">) . </font><font color="#DD0000">"\n"</font><font color="#007700">;<br /><br /></font><font color="#FF8000">/* hamdist is equivilent to: */<br /></font><font color="#007700">echo </font><font color="#0000BB">gmp_popcount</font><font color="#007700">(</font><font color="#0000BB">gmp_xor</font><font color="#007700">(</font><font color="#0000BB">$ham1</font><font color="#007700">, </font><font color="#0000BB">$ham2</font><font color="#007700">)) . </font><font color="#DD0000">"\n"</font><font color="#007700">;<br /></font><font color="#0000BB">?></font> </font> </code></TD ></TR ></TABLE ><P > The printout of the above program will be: </P ><TABLE BORDER="0" BGCOLOR="#E0E0E0" CELLPADDING="5" ><TR ><TD ><PRE CLASS="screen" >6 6</PRE ></TD ></TR ></TABLE ></DIV ></TD ></TR ></TABLE ><P > See also <A HREF="function.gmp-popcount.html" ><B CLASS="function" >gmp_popcount()</B ></A >, <A HREF="function.gmp-xor.html" ><B CLASS="function" >gmp_xor()</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.gmp-gcdext.html" ACCESSKEY="P" >Anterior</A ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="index.html" ACCESSKEY="H" >Principal</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><A HREF="function.gmp-init.html" ACCESSKEY="N" >Próxima</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >gmp_gcdext</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="ref.gmp.html" ACCESSKEY="U" >Acima</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >gmp_init</TD ></TR ></TABLE ></DIV ></BODY ></HTML >