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run code in 150+ php & hhvm versions
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<?php mb_internal_encoding("UTF-8"); mb_regex_encoding("UTF-8"); print_r(mb_split(utf8_encode("\W+", "whatèver, .*fóo: bâr"))));
Output for 5.3.0 - 5.4.23
Parse error: syntax error, unexpected ')' in /in/U9Kvm on line 4
Process exited with code 255.