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<?php $ptn = "^[\pL\s.]+$"; $str = "i am letters 9880 ."; preg_match($ptn, $str, $matches); print_r($matches); ?>
Output for 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
Warning: preg_match(): No ending delimiter '^' found in /in/E5oiV on line 4
Output for 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6
Warning: preg_match(): No ending delimiter '^' found in /in/E5oiV on line 4 Array ( )
Output for 4.3.0 - 4.3.10
Warning: No ending delimiter '^' found in /in/E5oiV on line 4 Array ( )

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309.49 ms | 401 KiB | 455 Q