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<?php $str = "PD-W3-SSO-ID"; if ( ! preg_match("/^[a-zA-Z0-9:_\/-|\.]+$/", $str)) { echo 'Disallowed Key Characters.'. $str; }
Output for 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.10, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Disallowed Key Characters.PD-W3-SSO-ID
preferences:
237.7 ms | 404 KiB | 227 Q