Resize all images in directory - php

Question

<?
/*
* Class: SimpleImage, Author: Simon Jarvis, Copyright: 2006 Simon Jarvis, Date: 08/11/06
* Link: http://www.white-hat-web-design.co.uk/articles/php-image-resizing.php
* See the GNU General Public License for more details: http://www.gnu.org/licenses/gpl.html
*/
class SimpleImage {
var $image;
var $image_type;
function load($filename) {
$image_info = getimagesize($filename);
$this->image_type = $image_info[2];
if( $this->image_type == IMAGETYPE_JPEG ) {
$this->image = imagecreatefromjpeg($filename);
} elseif( $this->image_type == IMAGETYPE_GIF ) {
$this->image = imagecreatefromgif($filename);
} elseif( $this->image_type == IMAGETYPE_PNG ) {
$this->image = imagecreatefrompng($filename);
}
}
function save($filename, $image_type=IMAGETYPE_JPEG, $compression=75, $permissions=null) {
if( $image_type == IMAGETYPE_JPEG ) {
imagejpeg($this->image,$filename,$compression);
} elseif( $image_type == IMAGETYPE_GIF ) {
imagegif($this->image,$filename);
} elseif( $image_type == IMAGETYPE_PNG ) {
imagepng($this->image,$filename);
}
if( $permissions != null) {
chmod($filename,$permissions);
}
}
function output($image_type=IMAGETYPE_JPEG) {
if( $image_type == IMAGETYPE_JPEG ) {
imagejpeg($this->image);
} elseif( $image_type == IMAGETYPE_GIF ) {
imagegif($this->image);
} elseif( $image_type == IMAGETYPE_PNG ) {
imagepng($this->image);
}
}
function getWidth() {
return imagesx($this->image);
}
function getHeight() {
return imagesy($this->image);
}
function resizeToHeight($height) {
$ratio = $height / $this->getHeight();
$width = $this->getWidth() * $ratio;
$this->resize($width,$height);
}
function resizeToWidth($width) {
$ratio = $width / $this->getWidth();
$height = $this->getheight() * $ratio;
$this->resize($width,$height);
}
function scale($scale) {
$width = $this->getWidth() * $scale/100;
$height = $this->getheight() * $scale/100;
$this->resize($width,$height);
}
function resize($width,$height) {
$new_image = imagecreatetruecolor($width, $height);
imagecopyresampled($new_image, $this->image, 0, 0, 0, 0, $width, $height, $this->getWidth(), $this->getHeight());
$this->image = $new_image;
}
}
// End of SimpleImage class
/* Directory Listing
Source : http://www.spoono.com/php/tutorials/tutorial.php?id=10
*/
// Define the path as relative
$path = "/home/content/51/6511651/html/SITE/img2";
// Using the opendir function
$dir_handle = #opendir($path) or die("ERROR: Cannot open <b>$path</b>");
echo("Directory Listing of $path<br/>");
//running the while loop
while ($file = readdir($dir_handle))
{
if($file != "." && $file != "..")
{
$image = new SimpleImage();
$image->load("/img2/new".$file);
$image->resize(86,86);
$image->save("img2/new/s".$file);
echo("• $file <br>");
}
}
//closing the directory
closedir($dir_handle);
?>
Why won't this script do anything???? I was trying to get it configured from (http://www.webmastersucks.com/resizing-all-images-in-directory/) and it basically does nothing once i run it.
Anyone?

Answer 1

Firstly, after this line:
$path = "/home/content/51/6511651/html/SITE/img2";
Add this one:
if (getcwd() != $path) chdir($path);
...to make sure you are working in a directory that allows you to use the relative paths you are trying to.
Then, change the contents of the while loop to this:
if($file != "." && $file != "..") {
$image = new SimpleImage();
$image->load($file);
$image->resize(86,86);
$image->save("s".$file);
echo("• $file <br>");
}