<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <HTML ><HEAD ><TITLE >ftok</TITLE ><META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.7"><LINK REL="HOME" TITLE="Manual PHP" HREF="index.html"><LINK REL="UP" TITLE="Semaphore, Shared Memory and IPC Functions" HREF="ref.sem.html"><LINK REL="PREVIOUS" TITLE="Semaphore, Shared Memory and IPC Functions" HREF="ref.sem.html"><LINK REL="NEXT" TITLE="msg_get_queue" HREF="function.msg-get-queue.html"><META HTTP-EQUIV="Content-type" CONTENT="text/html; charset=ISO-8859-2"></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" >Manual PHP</TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="bottom" ><A HREF="ref.sem.html" ACCESSKEY="P" >Înapoi</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="function.msg-get-queue.html" ACCESSKEY="N" >Înainte</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="function.ftok" ></A >ftok</H1 ><DIV CLASS="refnamediv" ><A NAME="AEN100853" ></A ><P > (PHP 4 >= 4.2.0, PHP 5)</P >ftok -- Convert a pathname and a project identifier to a System V IPC key </DIV ><DIV CLASS="refsect1" ><A NAME="AEN100856" ></A ><H2 >Description</H2 >int <B CLASS="methodname" >ftok</B > ( string pathname, string proj)<BR ></BR ><P > The function converts the <VAR CLASS="parameter" >pathname</VAR > of an existing accessible file and a project identifier (<VAR CLASS="parameter" >proj</VAR >) into a <VAR CLASS="literal" >integer</VAR > for use with for example <A HREF="function.shmop-open.html" ><B CLASS="function" >shmop_open()</B ></A > and other System V IPC keys. The <VAR CLASS="parameter" >proj</VAR > parameter should be a one character string. </P ><P > On success the return value will be the created key value, otherwise <VAR CLASS="literal" >-1</VAR > is returned. </P ><P > See also <A HREF="function.shmop-open.html" ><B CLASS="function" >shmop_open()</B ></A > and <A HREF="function.sem-get.html" ><B CLASS="function" >sem_get()</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="ref.sem.html" ACCESSKEY="P" >Înapoi</A ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="index.html" ACCESSKEY="H" >Acasã</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><A HREF="function.msg-get-queue.html" ACCESSKEY="N" >Înainte</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >Semaphore, Shared Memory and IPC Functions</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="ref.sem.html" ACCESSKEY="U" >Sus</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >msg_get_queue</TD ></TR ></TABLE ></DIV ></BODY ></HTML >