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<?php $string = "\u263a\ufe0f"; var_dump(preg_replace('/\\\\u([0-9A-Za-z]{4})\\\\u([0-9A-Za-z]{4})/', ' $1$2', $string));
Output for git.master, git.master_jit, rfc.property-hooks
string(9) " 263afe0f"

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