<?php
#user uploads file and it moves to server
move_uploaded_file ($_FILES['Image']['tmp_name'], "/sites/".$_FILES['Image']['name']) or die ('Could not upload');
?>


<?php
#create image path
$img = imagecreatefromjpeg("/sites/".$_FILES['Image']['name']);
?>


<?php
#pixelate function
#if($img && imagefilter($img,IMG_FILTER_PIXELATE,4))
#{
echo 'Win <br/>';
imagejpeg($img,'image.jpg',100);
?>

<?php

#resize image

    $output_width =30;
    $output_height=50;
    $xytotal = $output_width*$output_height;

    $path = '/sites/image.jpg';
    $size_arr = getimagesize($path);
    if ($size_arr[2]==IMAGETYPE_GIF)
        $image = imagecreatefromgif($path);
    else if ($size_arr[2]==IMAGETYPE_JPEG)
        $image = imagecreatefromjpeg($path);
    else if ($size_arr[2]==IMAGETYPE_PNG)
        $image = imagecreatefrompng($path);
    else
        die_default_image();

    $tmpname = tempnam( sys_get_temp_dir() , "phptmp");

    resize_image($tmpname, $image, $size_arr, $output_width, $output_height);

    $img = imagecreatefromjpeg($tmpname);
    imagejpeg($img,'image.jpg',100);

    unlink( $tmpname );

#loop to populate rgb values and save to array: $xy

    $imagew = imagesx($img);
    $imageh = imagesy($img);
    $xy = array(i);

    echo "Image (w,h): ($imagew, $imageh)<br/>";

    $x = 0;
    $y = 0;
    for ($x = 0; $x <= $imagew; $x++) {
    for ($y = 0;$y <= $imageh; $y++ ) {
            $rgb = imagecolorat($img, $x, $y);
            $r = ($rgb >> 16) & 0xFF;
            $g = ($rgb >> 8) & 0xFF;
            $b = $rgb & 0xFF;

            #loop to save ($r,$g,$b) into $xy
            for ($i = 0; $i <= $xytotal; $i++) {
            $xy[i] = ($r, $g, $b);
            }



            echo "xy: $xy x: $x, y: $y <br/>";
            var_dump($r, $g, $b);
        }
    }

function die_default_image()
{
    //43byte 1x1 transparent pixel gif
    header("content-type: image/gif");
    echo base64_decode("R0lGODlhAQABAIAAAAAAAAAAACH5BAEAAAAALAAAAAABAAEAAAICRAEAOw==");
}

function resize_image($thumbname, $image, $size_arr, $max_width, $max_height)//maintain aspect ratio
{
    $width  = $max_width;
    $height = $max_height;
    list($width_orig, $height_orig, $img_type) = $size_arr;
    $ratio_orig = $width_orig/$height_orig;

    if ($width/$height > $ratio_orig) {
       $width = floor($height*$ratio_orig);
    } else {
       $height = floor($width/$ratio_orig);
    }

    // Resample
    $tempimg = imagecreatetruecolor($width, $height);
    imagecopyresampled($tempimg, $image, 0, 0, 0, 0, $width, $height, $width_orig, $height_orig);
    imagejpeg($tempimg, $thumbname, 80);
}

if ( !function_exists('sys_get_temp_dir')) {
  function sys_get_temp_dir() {
    if (!empty($_ENV['TMP'])) { return realpath($_ENV['TMP']); }
    if (!empty($_ENV['TMPDIR'])) { return realpath( $_ENV['TMPDIR']); }
    if (!empty($_ENV['TEMP'])) { return realpath( $_ENV['TEMP']); }
    $tempfile=tempnam(uniqid(rand(),TRUE),'');
    if (file_exists($tempfile)) {
    unlink($tempfile);
    return realpath(dirname($tempfile));
    }
  }
}
?>


<br>
<br>
<img src="http://localhost/image.jpg" />