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<?php var_dump(preg_match('/あ/u', "\xE3\x81\x82", $matches)); var_dump(preg_match('//u', "\xF0\xA0\x80\x8B", $matches)); var_dump(preg_match('//u', "𠀋", $matches)); var_dump("\xF0A0808B" == "𠀋");
Output for git.master, git.master_jit, rfc.property-hooks
int(1) int(1) int(1) bool(false)

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