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<?php // alfanumeric check $value = '1567abBabcdefr'; if (preg_match('/[^a-f0-9]/', $value)) { echo 'Niet door alfanumeric check'; } else{ echo 'Door alfanumeric check'; }
Output for git.master, git.master_jit, rfc.property-hooks
Niet door alfanumeric check

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