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<?php $postal_code_to_check = substr('m3a3b3', 0, 3); $patterns = array( '[A]{1}[0]{1}[P-Z]{1}', '[A]{1}[2]{1}[V]{1}', '[G]{1}[0]{1}[G]{1}', '[G]{1}[4]{1}[T]{1}', '[R]{1}[0]{1}[B]{1}', ); $regex = "/^(" . implode('|', $patterns) . ")$/i"; if (preg_match($regex, $postal_code_to_check)) { print_f('Matched!'); }
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