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<?php preg_match_all( '/\X/u' , "\xE1\x8D\x9F" , $matches , PREG_SET_ORDER ); print_r($matches); exit(0);
Output for 5.3.24 - 5.3.29, 5.4.14 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.30, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.6 - 7.2.33, 7.3.12 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Array ( [0] => Array ( [0] => ፟ ) )
Output for 5.3.0 - 5.3.23, 5.4.0 - 5.4.13
Array ( )
preferences:
245.22 ms | 402 KiB | 318 Q