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run code in 200+ php & hhvm versions
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<?php $characters = ["A", "1", "\u{2603}"]; foreach ($characters as $character) { var_dump(IntlChar::isbase($character)); } ?>
based on ADJvZ
Output for 7.0.0 - 7.2.0
bool(true) bool(true) bool(false)
Output for 5.4.0 - 5.6.28
Fatal error: Class 'IntlChar' not found in /in/Y02QQ on line 4
Process exited with code 255.