<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <HTML ><HEAD ><TITLE >mhash</TITLE ><META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.79"><LINK REL="HOME" TITLE="PHP 手册" HREF="index.html"><LINK REL="UP" TITLE="Mhash Functions" HREF="ref.mhash.html"><LINK REL="PREVIOUS" TITLE="mhash_keygen_s2k" HREF="function.mhash-keygen-s2k.html"><LINK REL="NEXT" TITLE="Mimetype Functions" HREF="ref.mime-magic.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" >PHP 手册</TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="bottom" ><A HREF="function.mhash-keygen-s2k.html" ACCESSKEY="P" >上一页</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="ref.mime-magic.html" ACCESSKEY="N" >下一页</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="function.mhash" ></A >mhash</H1 ><DIV CLASS="refnamediv" ><A NAME="AEN119175" ></A ><P > (PHP 3 >= 3.0.9, PHP 4, PHP 5)</P >mhash -- Compute hash</DIV ><DIV CLASS="refsect1" ><A NAME="AEN119178" ></A ><H2 >说明</H2 >string <B CLASS="methodname" >mhash</B > ( int hash, string data [, string key] )<BR ></BR ><P > <B CLASS="function" >mhash()</B > applies a hash function specified by <CODE CLASS="parameter" >hash</CODE > to the <CODE CLASS="parameter" >data</CODE >. </P ></DIV ><DIV CLASS="refsect1" ><A NAME="AEN119196" ></A ><H2 >参数</H2 ><P > <P ></P ><DIV CLASS="variablelist" ><DL ><DT ><CODE CLASS="parameter" >hash</CODE ></DT ><DD ><P > The hash id. One of the <TT CLASS="literal" >MHASH_XXX</TT > constants. </P ></DD ><DT ><CODE CLASS="parameter" >data</CODE ></DT ><DD ><P > The user input, as a string. </P ></DD ><DT ><CODE CLASS="parameter" >key</CODE ></DT ><DD ><P > If specified, the function will return the resulting HMAC instead. HMAC is keyed hashing for message authentication, or simply a message digest that depends on the specified key. Not all algorithms supported in mhash can be used in HMAC mode. </P ></DD ></DL ></DIV > </P ></DIV ><DIV CLASS="refsect1" ><A NAME="AEN119216" ></A ><H2 >返回值</H2 ><P > Returns the resulting hash (also called digest) or HMAC as a string, or <TT CLASS="constant" ><B >FALSE</B ></TT > on errors. </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.mhash-keygen-s2k.html" ACCESSKEY="P" >上一页</A ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="index.html" ACCESSKEY="H" >起始页</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><A HREF="ref.mime-magic.html" ACCESSKEY="N" >下一页</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >mhash_keygen_s2k</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="ref.mhash.html" ACCESSKEY="U" >上一级</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >Mimetype Functions</TD ></TR ></TABLE ></DIV ></BODY ></HTML >