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run code in 300+ PHP versions simultaneously
<?php $tests = [ 'getADogThenROCKInTheUSA', 'SomeOfTheWords', 'getADog', 'ADog', 'aDog', 'XML', 'SimpleXMLReader', 'FREE4NOW', '123ABC', 'DEF456', 'ghi789', 'wtf666Omg', 'PHP8Point3', ]; foreach ($tests as $test) { printf("%25s => %s\n", $test, strtolower(preg_replace('/(?>[A-Z]?[a-z]+|[A-Z]+(?=[A-Z][a-z]|[^A-Za-z])|[^A-Za-z]+)\K(?!$)/', '-', $test))); }
Output for 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
getADogThenROCKInTheUSA => get-a-dog-then-rock-in-the-usa SomeOfTheWords => some-of-the-words getADog => get-a-dog ADog => a-dog aDog => a-dog XML => xml SimpleXMLReader => simple-xml-reader FREE4NOW => free-4-now 123ABC => 123-abc DEF456 => def-456 ghi789 => ghi-789 wtf666Omg => wtf-666-omg PHP8Point3 => php-8-point-3
preferences:
79.63 ms | 1052 KiB | 4 Q