View difference between Paste ID: qqUhV2gY and GD7Uzuwr

 <?php
 $imagetypes = array("image/jpeg");
 
 function getImages($folder) {
         $images = array();
         $directory = dir($folder);
         while(($entry = $directory->read()) !== false) {
                 if($entry == '.' || $entry == '..' || !strstr($entry, '.')) {
                         continue;
                 }
                 $images[] = $entry;
         }
         return $images;
 }
 
 if(isset($_GET['p'])) {
     $pagination_start = intval($_GET['p']);
 } else {
     $pagination_start = 0;
 }
 
 $images_per_page = 20;
 $path = "tattoos";
 $docroot = "$path";
 
 $images = getImages($path);
 $images_start = $pagination_start * $images_per_page;
 $images_end = $images_start + $images_per_page;
 $pages_total = ceil(count($images) / $images_per_page);
 
 for($i = $images_start; $i < $images_end; $i++) {
     $image = $images[$i];
     echo "<a href='{$path}/{$image}'>";
     $filename = explode('.', $image);
     echo "<img class='photo' src='{$path}/{$filename[0]}th.{$filename[1]}'>";
     echo "</a>\n";
 }
 
 echo "<ul>";
-for($i = 1; $i <= $pages_total; $i++) {
+for($i = 0; $i < $pages_total; $i++) {
-    echo "<li><a href='index.php?page=gallery&gallery=tattoos&p={$i}'>{$i}</a></li>";
+    $j = $i + 1;
     echo "<li><a href='index.php?page=gallery&gallery=tattoos&p={$i}'>{$j}</a></li>";
 }
 echo "</ul>";
 
 ?>