<?php
 header('Content-type: image/jpeg');
  $url = $_GET['url'];
  $json = $_GET['json'];

  $image = imagecreatefromjpeg($url);
  imagesetthickness($image, 5);
  $black = imagecolorallocate($image, 255, 255, 0); //kode rgb warna kuning 255,255,0

  $x = 0;
  $y = 0;
  $w = imagesx($image);
  $z = imagesy($image);
  $faceId = explode("\"faceId\"",$json);

//memberi garis bujur sangkar ke beberapa wajah
 for ($i=1; $i < count($faceId); $i++) {
  $ex1 = explode("\"top\": ",$faceId[$i]);
  $ex2 = explode(",",$ex1[1]);
  $top = $ex2[0];

  $ex1 = explode("\"left\": ",$faceId[$i]);
  $ex2 = explode(",",$ex1[1]);
  $left = $ex2[0];

  $ex1 = explode("\"width\": ",$faceId[$i]);
  $ex2 = explode(",",$ex1[1]);
  $width = $ex2[0];

  $ex1 = explode("\"height\": ",$faceId[$i]);
  $ex2 = explode(" ",$ex1[1]);
  $height = trim($ex2[0]);

  imageline($image, $left, $top, $left+$width, $top, $black); //garis atas
  imageline($image, $left, $top+$height, $left+$width, $top+$width, $black); //garis bawah
  imageline($image, $left, $top, $left, $top+$height, $black); //garis kiri
  imageline($image, $left+$width, $top, $left+$width, $top+$height, $black); //garis kanan
 }
  imagejpeg($image);
  imagedestroy($image);?>