<HTML ><HEAD ><TITLE >gztell</TITLE ><META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.44"><LINK REL="HOME" TITLE="PHP Manual" HREF="manual.html"><LINK REL="UP" TITLE="Compression functions" HREF="ref.zlib.html"><LINK REL="PREVIOUS" TITLE="gzseek" HREF="function.gzseek.html"><LINK REL="NEXT" TITLE="gzwrite" HREF="function.gzwrite.html"></HEAD ><BODY BGCOLOR="#FFFFFF" TEXT="#000000" LINK="#0000FF" VLINK="#840084" ALINK="#0000FF" ><DIV CLASS="NAVHEADER" ><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.gzseek.html" >Prev</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="function.gzwrite.html" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="function.gztell" >gztell</A ></H1 ><DIV CLASS="refnamediv" ><A NAME="AEN6506" ></A >gztell -- tell gz-file pointer read/write position</DIV ><DIV CLASS="refsect1" ><A NAME="AEN6509" ></A ><H2 >Description</H2 ><DIV CLASS="funcsynopsis" ><P ></P ><CODE CLASS="FUNCDEF" >int gztell</CODE >(int zp);<P ></P ></DIV ><P > Returns the position of the file pointer referenced by zp; i.e., its offset into the file stream.</P ><P > If an error occurs, returns false.</P ><P > The file pointer must be valid, and must point to a file successfully opened by <A HREF="function.gzopen.html" ><B CLASS="function" >gzopen()</B ></A >.</P ><P > See also <A HREF="function.gzopen.html" ><B CLASS="function" >gzopen()</B ></A >, <A HREF="function.gzseek.html" ><B CLASS="function" >gzseek()</B ></A > and <A HREF="function.gzrewind.html" ><B CLASS="function" >gzrewind()</B ></A >.</P ></DIV ><DIV CLASS="NAVFOOTER" ><HR ALIGN="LEFT" WIDTH="100%"><TABLE WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" ><A HREF="function.gzseek.html" >Prev</A ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="manual.html" >Home</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><A HREF="function.gzwrite.html" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >gzseek</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="ref.zlib.html" >Up</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >gzwrite</TD ></TR ></TABLE ></DIV ></BODY ></HTML >