<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <HTML ><HEAD ><TITLE >mb_strlen</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="Multibyte String Functions" HREF="ref.mbstring.html"><LINK REL="PREVIOUS" TITLE="mb_stristr" HREF="function.mb-stristr.html"><LINK REL="NEXT" TITLE="mb_strpos" HREF="function.mb-strpos.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.mb-stristr.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="function.mb-strpos.html" ACCESSKEY="N" >下一页</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="function.mb-strlen" ></A >mb_strlen</H1 ><DIV CLASS="refnamediv" ><A NAME="AEN133505" ></A ><P > (PHP 4 >= 4.0.6, PHP 5)</P >mb_strlen -- Get string length</DIV ><DIV CLASS="refsect1" ><A NAME="AEN133508" ></A ><H2 >Description</H2 >int <B CLASS="methodname" >mb_strlen</B > ( string str [, string encoding] )<BR ></BR ><P > <B CLASS="function" >mb_strlen()</B > returns number of characters in string <CODE CLASS="parameter" >str</CODE > having character encoding <CODE CLASS="parameter" >encoding</CODE >. A multi-byte character is counted as 1. </P ><P > <CODE CLASS="parameter" >encoding</CODE > is character encoding for <CODE CLASS="parameter" >str</CODE >. If <CODE CLASS="parameter" >encoding</CODE > is omitted, internal character encoding is used. </P ><P > See also <A HREF="function.mb-internal-encoding.html" ><B CLASS="function" >mb_internal_encoding()</B ></A >, <A HREF="function.strlen.html" ><B CLASS="function" >strlen()</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.mb-stristr.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="function.mb-strpos.html" ACCESSKEY="N" >下一页</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >mb_stristr</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="ref.mbstring.html" ACCESSKEY="U" >上一级</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >mb_strpos</TD ></TR ></TABLE ></DIV ></BODY ></HTML >