title: how do i do the calculation with a variable in PHP?
body: <p>Ok so i have 3 variables </p>
  
  <pre><code> $real_price = 33.00;
   $real_option = 13.00;
   $option_value['price_prefix'] = "-";
   $real_total = $real_price $option_value['price_prefix'] $real_option; 
  </code></pre>
  
  <p>how come i cant do line 4</p>
  
  <p>I need <code>$real_total</code> to be <code>20.00</code></p>
  
  <p>i get <code>Parse error: syntax error, unexpected T_VARIABLE</code></p>