Online PHP editor | refs for 4MJoE

<?php $hasil = 65; $biasa = array(0,40,65); $puas = array(40,65,80); $istimewa = array(65,80,100); $kb = array_intersect($biasa, $puas); print_r($kb); if ( $hasil <= $kb ) { // hitung nilai kecewa pake rumus fuzzy logic $muKecewa = ($kb[2] - $hasil) / ($kb[2] - $kb[1]); //output : 52,5 echo $muKecewa; echo "<br />"; } else { echo "false"; }