3v4l.org

run code in 300+ PHP versions simultaneously
<?php $strings = array( 'this is a string', 'this is $ a string', 'this is 12 string', 'this is $12.99 string', ); foreach ($strings as $string) { var_dump(strtolower(preg_replace('#[^a-z0-9]#', '', preg_replace('#[\ +]#', '-', $string)))); }
preferences:
42.62 ms | 402 KiB | 5 Q