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<?php $v = '-'; var_dump((int) $v); $deactive = preg_replace('/[^a-zA-Z0-9-]/', '', (int) $v); var_dump($deactive); var_dump(filter_var($v, FILTER_VALIDATE_INT));
Output for 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.26, 8.4.1 - 8.4.13
int(0) string(1) "0" bool(false)
preferences:
151 ms | 407 KiB | 5 Q