str_replace ($search, $replace, $subject);
<?php echo str_replace("world","Peter","Hello world!"); ?>
echo str_replace("worss","world","Hello worss in PHP!!");
$vowels = array("a", "e", "i", "o", "u", "A", "E", "I", "O", "U"); $onlyconsonants = str_replace($vowels, "", "Hello World of PHP"); // Fornece: Hll Wrld f PHP