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('#[-+]#', '-', preg_replace('#[^a-z0-9\-]#', '', preg_replace('#[\s+]#', '-', $string))))); }

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33.77 ms | 402 KiB | 5 Q