<HTML ><HEAD ><TITLE >fseek</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="fscanf" HREF="function.fscanf.html"><LINK REL="NEXT" TITLE="fstat" HREF="function.fstat.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.fscanf.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="function.fstat.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="function.fseek" ></A >fseek</H1 ><DIV CLASS="refnamediv" ><A NAME="AEN26111" ></A ><P > (PHP 3, PHP 4 )</P >fseek -- Seeks on a file pointer</DIV ><DIV CLASS="refsect1" ><A NAME="AEN26114" ></A ><H2 >Description</H2 >int <B CLASS="methodname" >fseek</B > ( resource handle, int offset [, int whence])<BR ></BR ><P > Sets the file position indicator for the file referenced by <TT CLASS="parameter" ><I >handle</I ></TT >.The new position, measured in bytes from the beginning of the file, is obtained by adding <TT CLASS="parameter" ><I >offset</I ></TT > to the position specified by <TT CLASS="parameter" ><I >whence</I ></TT >, whose values are defined as follows: <P ></P ><TABLE BORDER="0" ><TBODY ><TR ><TD ><TT CLASS="constant" ><B >SEEK_SET</B ></TT > - Set position equal to <TT CLASS="parameter" ><I >offset</I ></TT > bytes.</TD ></TR ><TR ><TD ><TT CLASS="constant" ><B >SEEK_CUR</B ></TT > - Set position to current location plus <TT CLASS="parameter" ><I >offset</I ></TT >.</TD ></TR ><TR ><TD ><TT CLASS="constant" ><B >SEEK_END</B ></TT > - Set position to end-of-file plus <TT CLASS="parameter" ><I >offset</I ></TT >. (To move to a position before the end-of-file, you need to pass a negative value in <TT CLASS="parameter" ><I >offset</I ></TT >.)</TD ></TR ></TBODY ></TABLE ><P ></P > </P ><P >If <TT CLASS="parameter" ><I >whence</I ></TT > is not specified, it is assumed to be <TT CLASS="constant" ><B >SEEK_SET</B ></TT >. </P ><P > Upon success, returns 0; otherwise, returns -1. Note that seeking past EOF is not considered an error. </P ><P > May not be used on file pointers returned by <A HREF="function.fopen.html" ><B CLASS="function" >fopen()</B ></A > if they use the "http://" or "ftp://" formats. </P ><DIV CLASS="note" ><BLOCKQUOTE CLASS="note" ><P ><B >Note: </B > The <TT CLASS="parameter" ><I >whence</I ></TT > argument was added after PHP 4.0.0. </P ></BLOCKQUOTE ></DIV ><P > See also <A HREF="function.ftell.html" ><B CLASS="function" >ftell()</B ></A > and <A HREF="function.rewind.html" ><B CLASS="function" >rewind()</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.fscanf.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.fstat.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >fscanf</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" >fstat</TD ></TR ></TABLE ></DIV ></BODY ></HTML >