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run code in 300+ PHP versions simultaneously
<?php $char = chr(200); echo 'ASCII: ', mb_check_encoding($char, 'ASCII') ? 'yup' : 'nope', PHP_EOL; echo 'ISO-8859-1: ', mb_check_encoding($char, 'ISO-8859-1') ? 'yup' : 'nope', PHP_EOL; echo 'UTF-8: ', mb_check_encoding($char, 'UTF-8') ? 'yup' : 'nope', PHP_EOL;
Output for git.master, git.master_jit, rfc.property-hooks
ASCII: nope ISO-8859-1: yup UTF-8: nope

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