Variable Operators in PHP

Question

Given this example, how would I return the result of the equation rather than the equation itself as a string?

$operator = \'+\';
foreach($resultSet as $item         


        

Answer 1

Use the eval function of PHP: http://php.net/manual/en/function.eval.php

$operator = '+';
foreach($resultSet as $item){
    $result = $item[$this->orderField] . $operator . 1;
    eval("\$result = \"$result\";");
    echo $result;
}