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<?php $str = 'โ‚ฌ๐Ÿ˜„A๐ˆยข'; $r = preg_match_all('|[\x{10000}-\x{10FFFF}]|u', $str, $matches); var_dump($matches[0]);
Output for git.master_jit, git.master, rfc.property-hooks
array(2) { [0]=> string(4) "๐Ÿ˜„" [1]=> string(4) "๐ˆ" }

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