<!DOCTYPE html> <html> <body> <?php $replace = array("1: AAA","2: AAA","3: AAA"); echo implode("<br>",substr_replace($replace,'BBB',3,3)); ?> </body> </html>
<?php $replace = array("1: AAA","2: AAA","3: AAA"); echo implode("<br>",substr_replace($replace,'BBB',3,3)); ?>