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Bugs & Features
<?php mb_convert_case( 'ΙΠΠΟΦΑΕΣ', MB_LOWER_CASE, 'UTF-8' );
Output for 7.2.0
Warning: Use of undefined constant MB_LOWER_CASE - assumed 'MB_LOWER_CASE' (this will throw an Error in a future version of PHP) in /in/TYi7P on line 3 Warning: mb_convert_case() expects parameter 2 to be integer, string given in /in/TYi7P on line 3
Output for 7.0.0 - 7.1.10
Notice: Use of undefined constant MB_LOWER_CASE - assumed 'MB_LOWER_CASE' in /in/TYi7P on line 3 Warning: mb_convert_case() expects parameter 2 to be integer, string given in /in/TYi7P on line 3
Output for 5.3.20 - 5.6.28
Notice: Use of undefined constant MB_LOWER_CASE - assumed 'MB_LOWER_CASE' in /in/TYi7P on line 3 Warning: mb_convert_case() expects parameter 2 to be long, string given in /in/TYi7P on line 3