implemented another way of finding next and prev (more kiss)

diff --git a/view.php b/view.php
index d6d45bd..1b38962 100644 (file)
--- a/view.php
+++ b/view.php
@@ -6,24 +6,27 @@ $scriptPath = $_SERVER["SCRIPT_NAME"];
 $quickDir = dirname($quickPath);
 $realDir = "images$quickDir";
 
-$files = scandir($realDir);
-$size = count($files);
-
-$pos = array_search(basename($quickPath),$files);
+// get all images in an array
+$images = array();
 
-$nextImage = '';
-for ($next=$pos+1; $nextImage === '' and $next<$size ; $next++) {
-       $mime = mime_content_type("$realDir/$files[$next]");
-       if ($mime == "image/jpeg")
-               $nextImage = $files[$next];
+$files = scandir($realDir);
+foreach ($files as $file) {
+       $ext = strtolower(substr($file, -4));
+       if ($ext == ".jpg" or $ext == ".png")
+               $images[] = $file;
 }
 
+// find the image position
+$pos = array_search(basename($quickPath), $images);
+if ($pos === false) die("Image not found");
+
+// get prev and next images
 $prevImage = '';
-for ($prev=$pos-1; $prevImage === '' and $prev>=0 ; $prev--) {
-       $mime = mime_content_type("$realDir/$files[$prev]");
-       if ($mime == "image/jpeg")
-               $prevImage = $files[$prev];
-}
+$nextImage = '';
+if ($pos > 0)
+       $prevImage = $images[$pos-1];
+if ($pos < sizeof($images))
+       $nextImage = $images[$pos+1];
 
 $imageUrl = dirname($scriptPath)."/images$quickPath";