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<?php // 前半が半角、後半が全角 $str = 'ABC123|ＡＢＣ１２３'; if (preg_match_all('/\d+/', $str, $matches)) { var_dump($matches); } if (preg_match_all('/\d+/u', $str, $matches)) { var_dump($matches); }
Output for 8.1.0 - 8.1.33, 8.2.7 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
array(1) { [0]=> array(1) { [0]=> string(3) "123" } } array(1) { [0]=> array(2) { [0]=> string(3) "123" [1]=> string(9) "１２３" } }
preferences:
74.67 ms | 406 KiB | 5 Q