<HTML ><HEAD ><TITLE >fflush</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="Filesystem functions" HREF="ref.filesystem.html"><LINK REL="PREVIOUS" TITLE="feof" HREF="function.feof.html"><LINK REL="NEXT" TITLE="fgetc" HREF="function.fgetc.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.feof.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="function.fgetc.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="function.fflush" ></A >fflush</H1 ><DIV CLASS="refnamediv" ><A NAME="AEN25300" ></A ><P > (PHP 4 >= 4.0.1)</P >fflush -- Flushes the output to a file</DIV ><DIV CLASS="refsect1" ><A NAME="AEN25303" ></A ><H2 >Description</H2 >bool <B CLASS="methodname" >fflush</B > ( resource handle)<BR ></BR ><P > This function forces a write of all buffered output to the resource pointed to by the file handle <TT CLASS="parameter" ><I >handle</I ></TT >. Returns <TT CLASS="constant" ><B >TRUE</B ></TT > if successful, <TT CLASS="constant" ><B >FALSE</B ></TT > otherwise. </P ><P > The file pointer must be valid, and must point to a file successfully opened by <A HREF="function.fopen.html" ><B CLASS="function" >fopen()</B ></A >, <A HREF="function.popen.html" ><B CLASS="function" >popen()</B ></A >, or <A HREF="function.fsockopen.html" ><B CLASS="function" >fsockopen()</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.feof.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.fgetc.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >feof</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="ref.filesystem.html" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >fgetc</TD ></TR ></TABLE ></DIV ></BODY ></HTML >