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<?php $ascii = 'foo'; var_dump(mb_check_encoding($ascii, 'UTF-8')); var_dump(mb_check_encoding($ascii, 'ASCII')); $utf8 = 'Österreich'; var_dump(mb_check_encoding($utf8, 'UTF-8')); var_dump(mb_check_encoding($utf8, 'ASCII')); $jp = '日本語'; var_dump(mb_check_encoding($jp, 'UTF-8')); var_dump(mb_check_encoding($jp, 'ASCII'));
Output for git.master, git.master_jit, rfc.property-hooks
bool(true) bool(true) bool(true) bool(false) bool(true) bool(false)

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