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<?php $str = "=~*_Размер 3 * 2"; echo preg_replace('/^[^\p{L}\d]+/u', '', $str);
Output for 7.3.32, 7.4.0 - 7.4.33, 8.0.1 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
Размер 3 * 2
preferences:
79.89 ms | 1240 KiB | 4 Q