<HTML ><HEAD ><TITLE >str_replace</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="String functions" HREF="ref.strings.html"><LINK REL="PREVIOUS" TITLE="str_repeat" HREF="function.str-repeat.html"><LINK REL="NEXT" TITLE="str_rot13" HREF="function.str-rot13.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.str-repeat.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="function.str-rot13.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="function.str-replace" ></A >str_replace</H1 ><DIV CLASS="refnamediv" ><A NAME="AEN90857" ></A ><P > (PHP 3>= 3.0.6, PHP 4 )</P >str_replace -- Replace all occurrences of the search string with the replacement string </DIV ><DIV CLASS="refsect1" ><A NAME="AEN90860" ></A ><H2 >Description</H2 >mixed <B CLASS="methodname" >str_replace</B > ( mixed search, mixed replace, mixed subject)<BR ></BR ><P > This function returns a string or an array with all occurences of <TT CLASS="parameter" ><I >search</I ></TT > in <TT CLASS="parameter" ><I >subject</I ></TT > replaced with the given <TT CLASS="parameter" ><I >replace</I ></TT > value. If you don't need fancy replacing rules, you should always use this function instead of <A HREF="function.ereg-replace.html" ><B CLASS="function" >ereg_replace()</B ></A > or <A HREF="function.preg-replace.html" ><B CLASS="function" >preg_replace()</B ></A >. </P ><P > In PHP 4.0.5 and later, every parameter to <B CLASS="function" >str_replace()</B > can be an array. </P ><P > If <TT CLASS="parameter" ><I >subject</I ></TT > is an array, then the search and replace is performed with every entry of <TT CLASS="parameter" ><I >subject</I ></TT >, and the return value is an array as well. </P ><P > If <TT CLASS="parameter" ><I >search</I ></TT > and <TT CLASS="parameter" ><I >replace</I ></TT > are arrays, then <B CLASS="function" >str_replace()</B > takes a value from each array and uses them to do search and replace on <TT CLASS="parameter" ><I >subject</I ></TT >. If <TT CLASS="parameter" ><I >replace</I ></TT > has fewer values than <TT CLASS="parameter" ><I >search</I ></TT >, then an empty string is used for the rest of replacement values. If <TT CLASS="parameter" ><I >search</I ></TT > is an array and <TT CLASS="parameter" ><I >replace</I ></TT > is a string; then this replacement string is used for every value of <TT CLASS="parameter" ><I >search</I ></TT >. </P ><P > <TABLE WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" CLASS="EXAMPLE" ><TR ><TD ><DIV CLASS="example" ><A NAME="AEN90896" ></A ><P ><B >Example 1. <B CLASS="function" >str_replace()</B > example</B ></P ><TABLE BORDER="0" BGCOLOR="#E0E0E0" CELLPADDING="5" ><TR ><TD ><PRE CLASS="php" >$bodytag = str_replace("%body%", "black", "<body text=%body%>");</PRE ></TD ></TR ></TABLE ></DIV ></TD ></TR ></TABLE > </P ><P > This function is binary safe. </P ><DIV CLASS="note" ><BLOCKQUOTE CLASS="note" ><P ><B >Note: </B > <B CLASS="function" >str_replace()</B > was added in PHP 3.0.6, but was buggy up until PHP 3.0.8. </P ></BLOCKQUOTE ></DIV ><P > See also <A HREF="function.ereg-replace.html" ><B CLASS="function" >ereg_replace()</B ></A >, <A HREF="function.preg-replace.html" ><B CLASS="function" >preg_replace()</B ></A >, and <A HREF="function.strtr.html" ><B CLASS="function" >strtr()</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.str-repeat.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.str-rot13.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >str_repeat</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="ref.strings.html" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >str_rot13</TD ></TR ></TABLE ></DIV ></BODY ></HTML >