Listing last 3 days items in directory using PHP -

i have following php code list data directory folder, question how list values last 3 days? secondly, asking possible add pagination code?

<?php    function getfilelist($dir)   {     // array hold return value     $retval = array();      // add trailing slash if missing     if(substr($dir, -1) != "/") $dir .= "/";      // open pointer directory , read list of files     $d = @dir($dir) or die("getfilelist: failed opening directory $dir reading");     while(false !== ($entry = $d->read())) {       // skip hidden files       if($entry[0] == ".") continue;       if(is_dir("$dir$entry")) {         $retval[] = array(           "name" => "$dir$entry/",           "type" => filetype("$dir$entry"),           "size" => 0,           "lastmod" => filemtime("$dir$entry")         );       } elseif(is_readable("$dir$entry")) {         $retval[] = array(           "name" => "$dir$entry",           "type" => mime_content_type("$dir$entry"),           "size" => filesize("$dir$entry"),           "lastmod" => filemtime("$dir$entry")         );       }     }     $d->close();      return $retval;   } ?>  <h1>display png images in table</h1>  <table class="collapse" border="1"> <thead> <tr><th></th><th>name</th><th>type</th><th>size</th><th>last modified</th></tr> </thead> <tbody> <?php   $dirlist = getfilelist("./images");   foreach($dirlist $file) {     if(!preg_match("/\.png$/", $file['name'])) continue;     echo "<tr>\n";     echo "<td><img src=\"{$file['name']}\" width=\"64\" alt=\"\"></td>\n";     echo "<td>{$file['name']}</td>\n";     echo "<td>{$file['type']}</td>\n";     echo "<td>{$file['size']}</td>\n";     echo "<td>",date('r', $file['lastmod']),"</td>\n";     echo "</tr>\n";   } ?> </tbody> </table> 

if want list files modified less 3 days ago

if(!preg_match("/\.png$/", $file['name'])   || $file['lastmod'] > strtotime('-3 day') ) continue; 

if want add pagination, should put filter in getfilelist instead of on display can count # of displayable items have.