Using Onion Omega's GPIO using php

Functions.php

<?php
  //When I get bored again Ill turn this into a library.
  function SetIO($pin, $value)
   {
       exec("fast-gpio set $pin $value 2>&1", $output);
       return explode(': ',$output[0])[1];
   }

  function ReadIO($pin)
  {
       exec("fast-gpio read $pin 2>&1", $output);
       return explode(': ',$output[0])[1];
  }

 function SetPWM($pin, $hZ, $dutyCyclePercent)
 {
       exec("fast-gpio pwm $pin $hZ $dutyCyclePercent 2>&1", $output);
       return explode(': ',$output[0])[1];
 }
?>