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<?php echo preg_replace_callback( '~(^\pL+\b)|(\b\p{Lu}+\b)~u', function($m) { return $m[1] ? mb_convert_case($m[1], MB_CASE_TITLE, 'UTF-8') : mb_strtolower($m[2], 'UTF-8'); }, 'THIS IS A Sentence that should be TAKEN Care of' );
Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
This is a Sentence that should be taken Care of
preferences:
100.02 ms | 407 KiB | 5 Q