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<?php $localhost = '/^(((localhost|127\.0\.0\.1|\[\:\:1\])(\:[1-9]{1}[0-9]{0,4})?)|(\:\:1))$/'; var_dump(preg_match($localhost, '127.0.0.1:80')); var_dump(preg_match($localhost, '127.0.0.1:80')); var_dump(preg_match($localhost, '127.0.0.1:8000')); var_dump(preg_match($localhost, '127.0.0.1:65535')); var_dump(preg_match($localhost, '127.0.0.1:6553511111111'));
Output for 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 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
int(1) int(1) int(1) int(1) int(0)
preferences:
129.37 ms | 407 KiB | 5 Q