Online PHP editor | refs for I2rbk

@ 2018-04-16T11:57:05Z

<?php
$formula = '(($a+$b)/$c)';

$deviceData["devicename"] = ['a' => 20, 'b' => 30, 'c' => 580];

$runFormula = function ($formula, $data) { 
    extract($data); 
    return eval('return '.$formula.';'); 
};


echo $runFormula($formula, $deviceData["devicename"]);