<HTML ><HEAD ><TITLE >posix_setuid</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="POSIX functions" HREF="ref.posix.html"><LINK REL="PREVIOUS" TITLE="posix_setsid" HREF="function.posix-setsid.html"><LINK REL="NEXT" TITLE="posix_times" HREF="function.posix-times.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.posix-setsid.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="function.posix-times.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="function.posix-setuid" ></A >posix_setuid</H1 ><DIV CLASS="refnamediv" ><A NAME="AEN75879" ></A ><P > (PHP 3>= 3.0.13, PHP 4 )</P >posix_setuid -- Set the UID of the current process </DIV ><DIV CLASS="refsect1" ><A NAME="AEN75882" ></A ><H2 >Description</H2 >bool <B CLASS="methodname" >posix_setuid</B > ( int uid)<BR ></BR ><P > Set the real user ID of the current process. This is a privileged function and you need appropriate privileges (usually root) on your system to be able to perform this function. </P ><P > Returns <TT CLASS="constant" ><B >TRUE</B ></TT > on success, <TT CLASS="constant" ><B >FALSE</B ></TT > otherwise. See also <A HREF="function.posix-setgid.html" ><B CLASS="function" >posix_setgid()</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.posix-setsid.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.posix-times.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >posix_setsid</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="ref.posix.html" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >posix_times</TD ></TR ></TABLE ></DIV ></BODY ></HTML >