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<?php //echo 'PHP_VERSION: ', PHP_VERSION, "\n"; mb_regex_encoding('UTF-8') || exit("mb_regex_encoding('UTF-8') error."); foreach (['0085', '180e'] as $hex) { $utf8 = mb_convert_encoding(pack('N', hexdec($hex)), 'UTF-8', 'UTF-32BE'); echo "U+{$hex}", (mb_ereg_match('\A[\s]\z', $utf8) ? ' match \\s !' : '')."\n"; } foreach (['00ad', '200B'] as $hex) { $utf8 = mb_convert_encoding(pack('N', hexdec($hex)), 'UTF-8', 'UTF-32BE'); echo "U+{$hex}", (mb_ereg_match('\A[[:cntrl:]]\z', $utf8) ? ' match cntrl !' : '')."\n"; }
Output for git.master, git.master_jit, rfc.property-hooks
U+0085 match \s ! U+180e U+00ad U+200B

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