<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <HTML ><HEAD ><TITLE >printf</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="String 字符串处理函数" HREF="ref.strings.html"><LINK REL="PREVIOUS" TITLE="print" HREF="function.print.html"><LINK REL="NEXT" TITLE="quoted_printable_decode" HREF="function.quoted-printable-decode.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.print.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.quoted-printable-decode.html" ACCESSKEY="N" >下一页</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="function.printf" ></A >printf</H1 ><DIV CLASS="refnamediv" ><A NAME="AEN226461" ></A ><P > (PHP 3, PHP 4, PHP 5)</P >printf -- Output a formatted string</DIV ><DIV CLASS="refsect1" ><A NAME="AEN226464" ></A ><H2 >Description</H2 >int <B CLASS="methodname" >printf</B > ( string format [, mixed args [, mixed ...]] )<BR ></BR ><P > Produces output according to <CODE CLASS="parameter" >format</CODE >, which is described in the documentation for <A HREF="function.sprintf.html" ><B CLASS="function" >sprintf()</B ></A >. </P ><P > Returns the length of the outputted string. </P ><P > See also <A HREF="function.print.html" ><B CLASS="function" >print()</B ></A >, <A HREF="function.sprintf.html" ><B CLASS="function" >sprintf()</B ></A >, <A HREF="function.vprintf.html" ><B CLASS="function" >vprintf()</B ></A >, <A HREF="function.sscanf.html" ><B CLASS="function" >sscanf()</B ></A >, <A HREF="function.fscanf.html" ><B CLASS="function" >fscanf()</B ></A >, and <A HREF="function.flush.html" ><B CLASS="function" >flush()</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.print.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.quoted-printable-decode.html" ACCESSKEY="N" >下一页</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >print</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="ref.strings.html" ACCESSKEY="U" >上一级</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >quoted_printable_decode</TD ></TR ></TABLE ></DIV ></BODY ></HTML >