- preg_match: documentation ( source)
- preg_replace: documentation ( source)
<?php
print preg_replace('/-([0-9]+)$/', "-$1", "asd-1132");
if (preg_match('/-([0-9]+)$/', "asd-1132", $matches) === 1) {
$num = (int) $matches[1];
print preg_replace('/-([0-9]+)$/', "-$1", "asd-1132");
}