Houseplant CTF:"Satan's Jigsaw" Soultion

<?php
#Oh no! I dropped my pixels on the floor and they're all muddled up! It's going to take me years to sort all 90,000 of these again :(
#https://houseplant.riceteacatpanda.wtf/download?file_key=84f748f5ebe7c8d00c7bc50f4c71f7be0cce3be169f1cbc985d7c30d39f5b1cf&team_key=79605a1b652a12dacc5c2a56766eefe3d442b962865b4265744bc66ad2c37d22
$arrayEntry=array();                #Image Array
if ($handle = opendir('<DIRECTORY>')) { #open the puzzle Dir

    while (false !== ($entry = readdir($handle))) {

        if ($entry != "." && $entry != ".." && $entry != ".DS_Store") {

            array_push($arrayEntry,$entry); #put alle the images in the array
        }
    }

    closedir($handle);
}

?>


  <script src="https://cdnjs.cloudflare.com/ajax/libs/p5.js/0.7.2/p5.js"> </script><!--Import p5* Library-->
  <script>
    function setup(){
        //convert PHP array into JS Array
        imageArr="<?php echo implode(",",$arrayEntry)?>" //turn the PHParray into string
        imageArr=imageArr.split(",")//turn the string into a JSarray
        var canvas = createCanvas(1000, 1000); //Create p5* canvas
        noSmooth()                              //remove anti-aliasing


        let i=0;//image Count
        for(let r=0;r<450;r++){//row
        for(let c=0;c<200;c++){//column
            loadImage("<DIRECTORY>/"+imageArr[i],img=>{image(img, c, r)});i++;  //load the image and when ready print the image with a callback
        }
    }
}
  </script>