Online PHP editor | refs for MPJtI

<?php // you'll have to add more data to cover all the cases $data = [ 0 => [1 => 2, 2 => 2, 3 => 4, 4 => 4, 5 => 6], 1 => [1 => 2, 2 => 4, 3 => 6, 4 => 6, 5 => 12], ]; $compliance = 0; $risk = 2; // retrieve the value $frequency = $data[$compliance][$risk]; printf( 'compliance %d and risk %d = %d months', $compliance, $risk, $frequency ); print PHP_EOL; $compliance = 1; $risk = 5; $frequency = $data[$compliance][$risk]; printf( 'compliance %d and risk %d = %d months', $compliance, $risk, $frequency );