How do I sort images from new to old

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Hi I have the following script to show images from a directory and make thumbs , but I would like to know how to sort the images from newest to oldest and how to implement it in this script Many Thanks in Advance!

PHP

<?php
    # SETTINGS
    $max_width = 800;
    $max_height = 600;
    $per_page = 10;

    $page = $_GET['page'];

    $has_previous = false;
    $has_next = false;

    function getPictures() {
        global $page, $per_page, $has_previous, $has_next;
        if ( $handle = opendir(".") ) {
            $lightbox = rand();
            echo '<ul id="pictures">';

            $count = 0;
            $skip = $page * $per_page;

            if ( $skip != 0 )
                $has_previous = true;

            while ( $count < $skip && ($file = readdir($handle)) !== false ) {
                if ( !is_dir($file) && ($type = getPictureType($file)) != '' )
                    $count++;
            }
            $count = 0;
            while ( $count < $per_page && ($file = readdir($handle)) !== false ) {
    if ( !is_dir($file) && ($type = getPictureType($file)) != '' ) {

        // make the thumbs directory if it doesn't already exist
        if ( ! is_dir('thumbs') ) {
            mkdir('thumbs');
        }
        // make a thumbnail if it doesn't already exist
        if ( ! file_exists('thumbs/'.$file) ) {
            makeThumb( $file, $type );
        }

        // create a link to $file, add the thumbnail
        echo '<li><a href="' . $file . '">';
        echo '<img src="thumbs/'.$file.'" alt="" /></a></li>';
        $count++;
echo substr($file,strlen($folder),strpos($file, '.')-strlen($folder));

    }
}

            echo '</ul>';

            while ( ($file = readdir($handle)) !== false ) {
                if ( !is_dir($file) && ($type = getPictureType($file)) != '' ) {
                    $has_next = true;
                    break;
                }
            }
        }
    }

    function getPictureType($file) {
        $split = explode('.', $file); 
        $ext = $split[count($split) - 1];
        if ( preg_match('/jpg|jpeg/i', $ext) ) {
            return 'jpg';
        } else if ( preg_match('/png/i', $ext) ) {
            return 'png';
        } else if ( preg_match('/gif/i', $ext) ) {
            return 'gif';
        } else {
            return '';
        }
    }

    function makeThumb( $file, $type ) {
        global $max_width, $max_height;
        if ( $type == 'jpg' ) {
            $src = imagecreatefromjpeg($file);
        } else if ( $type == 'png' ) {
            $src = imagecreatefrompng($file);
        } else if ( $type == 'gif' ) {
            $src = imagecreatefromgif($file);
        }
        if ( ($oldW = imagesx($src)) < ($oldH = imagesy($src)) ) {
            $newW = $oldW * ($max_width / $oldH);
            $newH = $max_height;
        } else {
            $newW = $max_width;
            $newH = $oldH * ($max_height / $oldW);
        }
        $new = imagecreatetruecolor($newW, $newH);
        imagecopyresampled($new, $src, 0, 0, 0, 0, $newW, $newH, $oldW, $oldH);
        if ( $type == 'jpg' ) {
            imagejpeg($new, 'thumbs/'.$file);
        } else if ( $type == 'png' ) {
            imagepng($new, 'thumbs/'.$file);
        } else if ( $type == 'gif' ) {
            imagegif($new, 'thumbs/'.$file);
        }
        imagedestroy($new);
        imagedestroy($src);
    }
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" dir="ltr" lang="en-US">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UFT-8" />
<title>Pictures</title>
<link rel="stylesheet" href="css/lightbox.css" type="text/css" media="screen" />
<style type="text/css">
body {
    width:780px;
    margin:0 auto;
}
#pictures li {
    float:left;
    height:<?php echo ($max_height + 10); ?>px;
    list-style:none outside;
    width:<?php echo ($max_width + 10); ?>px;
    text-align:center;
}
img {
    border:0;
    outline:none;
}
.prev {
    float:left;
}
.next {
    float:right;
}
</style>
</head>
<body>

<?php getPictures(); ?>

<div style="clear:both"></div>

<?php
    if ( $has_previous )
        echo '<p class="prev"><a href="?page='.($page - 1).'">← Previous Page</a></p>';

    if ( $has_next )
        echo '<p class="next"><a href="?page='.($page + 1).'">Next Page →</a></p>';
?>

<div style="clear:both"></div>

<script type="text/javascript" src="js/prototype.js"></script>
<script type="text/javascript" src="js/scriptaculous.js?load=effects,builder"></script>
<script type="text/javascript" src="js/lightbox.js"></script>
</body>
</html>

Posted 24-Aug-14 23:47pm

cobusbo

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Comments

ChauhanAjay 25-Aug-14 6:02am

On what basis can you find out which is new and which is old?

cobusbo 25-Aug-14 6:06am

Should be the time uploaded to the server

ChauhanAjay 25-Aug-14 6:09am

sort on the time uploaded in descending order if you want from new to old.

cobusbo 25-Aug-14 6:10am

yes but how? i want it from latest to oldest...

1 solution

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ChauhanAjay · Answer 1 · 2014-08-28T06:09:00

Solution 1

Just check the below link
Sort pictures by date, newest first in PHP[^]

Posted 28-Aug-14 6:09am

ChauhanAjay