strtr

(PHP 4, PHP 5)

strtr — Translate certain characters

Description

string strtr ( string $str , string $from , string $to )

string strtr ( string $str , array $replace_pairs )

This function returns a copy of str , translating all occurrences of each character in from to the corresponding character in to .

If from and to are different lengths, the extra characters in the longer of the two are ignored.

Example#1 strtr() example


<?php
$addr = strtr($addr, "äåö", "aao");
?>

strtr() may be called with only two arguments. If called with two arguments it behaves in a new way: from then has to be an array that contains string -> string pairs that will be replaced in the source string. strtr() will always look for the longest possible match first and will *NOT* try to replace stuff that it has already worked on.

Example#2 strtr() example with two arguments


<?php
$trans = array("hello" => "hi", "hi" => "hello");
echo strtr("hi all, I said hello", $trans);
?>

This will show:

hello all, I said hi

Note: This optional to and from parameters were added in PHP 4.0.0