gistfile1.php

<?php

            $substitution = '5tv0WiPg2YoSNCRzzBUZc7Bozp2WhLmODSMmc8qlTNh8MdUJVyPx9lj3vngJzFn';
            
            $regexPattern = str_replace('*', $substitution, $customRulePattern); // replace "*" with random substitution, to avoid being preg_quote() escaped
            $regexPattern = preg_quote($regexPattern); // escape all regex syntax
            $regexPattern = str_replace('/', '\/', $regexPattern); // also escape the "/" character, since we are using that as the preg delimiter
            $regexPattern = str_replace($substitution, '.*', $regexPattern); // convert $substitution into the correct regex pattern
            $regexPattern = "/$regexPattern/s"; // wrap in / and add the "DOTALL" flag
            
            return (preg_match($regexPattern, $answerStr)