<?php function titleCaseSpecial($string) { return preg_replace_callback( '~[/.-]\p{Ll}~u', function ($m) { return mb_strtoupper($m[0], 'UTF-8'); }, mb_convert_case($string, MB_CASE_TITLE, 'UTF-8') ); } $strings = [ 'Name: MR. M.A.D KARIM', 'Address: 12/A, ROOM NO-B 13' ]; var_export( array_map('titleCaseSpecial', $strings) );
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