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<?php $in = '\u00E3\u0081\u0082a'; $out = preg_replace_callback('/\\\\u[0-9A-F]{4}/', function ($matches) { return hex2bin(substr($matches[0], -2, 2)); }, $in); echo $out;
Output for git.master, git.master_jit, rfc.property-hooks
あa

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