resizing a image

[anfetienne]

hi.....i have this script (below #1) that is linked to another php file SimpleImage.php (#2) im trying to get it to work on my uploaded images but it keeps coming up errors.....i haven't altered anything except for:

$image->load('picture. jpg');
$image->resize(546,403 );
$image->save('picture2 .jpg');

I put the variables i need in there within " " instead of ' ' and i always get a error message.....am i doing something or cant this be used to the scale i require


#1

<?php
   include('SimpleImage.php');
   $image = new SimpleImage();
   $image->load('picture.jpg');
   $image->resize(546,403);
   $image->save('picture2.jpg');
?>
 

#2

<?php
/*
* File: SimpleImage.php
* 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
* 
* This program is free software; you can redistribute it and/or 
* modify it under the terms of the GNU General Public License 
* as published by the Free Software Foundation; either version 2 
* of the License, or (at your option) any later version.
* 
* This program is distributed in the hope that it will be useful, 
* but WITHOUT ANY WARRANTY; without even the implied warranty of 
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 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;   
   }      
}
?>
 
 
 
 

[Markus]

The error is?

[anfetienne]

well.....the error has stopped but it said that this was invalid

function getWidth() {
return imagesx($this->image);
}
function getHeight() {
return imagesy($this->image);

and it wasn't detecting the files i was pointing to with my variable....thi s is

$resizeM = "upload/imgtemp/m/$random_digit/$filename";

include('Simple Image.php');
$image = new SimpleImage();
$image->load("$resizeM ");
$image->resize(250,400 );
$image->save("$resizeM ");

[anfetienne]

thats the changes ive made

[hoopy]

Looks like a problem with the path try:

echo $resizeM;

And see what it outputs.

Also where is that script in relation to the uploads/ directory?

[Markus]

The error has now stopped? Is the image resizing working now then?

[anfetienne]

no it isn't resizing but it isn't giving me any errors.....its weird.....when i echo $resizeM i get the full location to the images that need resizing.

i'm going to think abaout this one and post again soon

[Markus]

Do you have error reporting on?

Nothing jumps out at me, but could you be uploading an image that isn't a JPEG, PNG or GIF?

[anfetienne]

error reporting is on and i have a set of test jpeg's that i am using to upload.

it's strange how it comes up with no errors at all but doesnt resize anything. I can't seem to figure this out

would it be better or easier to try resize the images during the upload process?

[anfetienne]

this is the coding i made to upload my files with.....can it be adapted to resize the images on upload?

<?
while(list($key,$value) = each($_FILES['images']['name']))
      {
         if(!empty($value))
         {
            $filename = $value;
               $filename=str_replace(" ","_",$filename);// Add _ inplace of blank space in file name, you can remove this line
 
               $add = "upload/imgtemp/m/$random_digit/$filename";
               $tempFLDR = "upload/imgtemp/t/$random_digit/$filename";
                       //echo $_FILES['images']['type'][$key];
              // echo "<br>";
               copy($_FILES['images']['tmp_name'][$key], $add);
               chmod("$add",0777);
               copy($_FILES['images']['tmp_name'][$key], $tempFLDR);
               chmod("$tempFLDR",0777);
 
$folderPath="upload/$random_digit/";
         }
      }
?>