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run code in 200+ php & hhvm versions
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<?php mb_regex_encoding('UTF-8'); mb_internal_encoding("UTF-8"); $input = 'éÄoÄ'; print_r(mb_split('//', $input));
based on JFuA9
Output for 4.3.4 - 7.2.0
Array ( [0] => éÄoÄ )
Output for 4.3.2 - 4.3.3
Fatal error: Call to undefined function: mb_regex_encoding() in /in/5BFUr on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: mb_regex_encoding() in /in/5BFUr on line 3