Ajax slideshow does not show anything

Hi i'm using this code to fetch new images from a folder to populate an slideshow.

after each cycle ajax should check content of the folder to see if any there was any

changes(pictures added or removed) then on the next cycle it should make the new changes to

the slideshow

<html>
<meta http-equiv="refresh" content="1000"/> 
<head>
<title>Slideshow</title>
<style type="text/css">
    #slideshow
    #slideshow img { padding: 15px; border: 1px solid #ccc; background-color: #eee; }
    #slide {width: 370px; height: 220px; padding: 0;  margin:  0 auto; }

    #myslides {
    width: 370px;
    height: 220px;
    padding: 0;  
    margin:  0 auto;  
} 

#myslides img {  
    padding: 10px;  
    border:  1px solid rgb(100,100,100);  
    background-color: rgb(230,230,230);
    width: 350px;
    height: 200px;
    top:  0; 
    left: 0 
}

</style>
</head>
<!-- include jQuery library -->

<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.5/jquery.min.js"></script>

<!-- include Cycle plugin -->
<script type="text/javascript" src="http://cloud.github.com/downloads/malsup/cycle/jquery.cycle.all.latest.js"></script>

<script type="text/javascript">
$(document).ready(function(){
$('#slideshow').cycle({
               fx: 'fade',
                speed: 700,
                timeout: 8000
        });
});
</script>

<body>

<div id="slideshow">

</body>



</html>

<script>
    $(function(){
        window.onload("fetchImages()", 2);

        function fetchImages() {
            $.ajax({
                type: "GET",
                url: "load.php"
            }).done(function(response){
                var curImgCount = $('#slideshow img').length;
                if (response.length > curImgCount) {
                    for (var i = curImgCount; i < response.length; i++) {
                        $('#slideshow').append('<img src="images/' + response[i] + '"');    
                    }
                }
            });
        }
    });
</script>

and content of php:

<?php

    function returnimages($dirname="./images") {
         $pattern="([^\s]+(\.(?i)(jpg|png|gif|bmp))$)";     
         $files = array();
         if($handle = opendir($dirname)) {
            while(false !== ($file = readdir($handle))){
                if(preg_match($pattern, $file)){ //if this file is a valid image 
                    $files[] = $file;
                } 
            }

            closedir($handle);
        }
        //sort($files);         
        natcasesort($files);   

        return($files);
    }

   $images = returnimages();
    foreach($images as $img)
    {
      echo json_encode($images);
    }

   ?>

Solution

Change your PHP to:

<?php

function returnimages($dirname="./images") {
  $pattern="([^\s]+(\.(?i)(jpg|png|gif|bmp))$)";
  $files = array();
  if($handle = opendir($dirname)) {
    while(false !== ($file = readdir($handle))){
      if(preg_match($pattern, $file)){ //if this file is a valid image
        $files[] = $file;
      }
    }
    closedir($handle);
  }
  //sort($files);
  natcasesort($files);

  return($files);
}

$images = returnimages();
echo json_encode($images);

?>

and your HTML to:

<html>
  <head>
    <meta http-equiv="refresh" content="1000"/>
    <title>Slideshow</title>
    <style type="text/css">
      #slideshow {
        position: relative;
      }
      #slideshow,
      #slideshow img {
        position: absolute;
        top: 0px;
        left: 0px;
        padding: 15px;
        border: 1px solid #ccc;
        background-color: #eee;
      }
      #slide {
        width: 370px;
        height: 220px;
        padding: 0;
        margin: 0 auto;
      }
      #myslides {
        width: 370px;
        height: 220px;
        padding: 0;
        margin: 0 auto;
      }

      #myslides img {
        padding: 10px;
        border:  1px solid rgb(100,100,100);
        background-color: rgb(230,230,230);
        width: 350px;
        height: 200px;
        top:  0;
        left: 0
      }

    </style>
    <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.5/jquery.min.js"></script>
    <script type="text/javascript" src="http://cloud.github.com/downloads/malsup/cycle/jquery.cycle.all.latest.js"></script>

    <script type="text/javascript">
      function loadSlides() {
        $.ajax({
          type: "GET",
          url: "load.php"
        }).done(function(response) {
          var temp_images = eval("(" + response + ")");
          for(ti in temp_images)
          {
            //alert(temp_images[ti]);
            $('#slideshow').append('<img src="images/' + temp_images[ti] + '" alt="">');
          }
          startSlideshow();
        });
      }

      function startSlideshow()
      {
        $('#slideshow').cycle({
          fx: 'fade',
          speed: 700,
          timeout: 800
        });
      }

      $(document).ready(function(){
        loadSlides();
      });
    </script>
  </head>
  <body>
    <div id="slideshow" />
  </body>
</html>