GatoX
0
- Joined
- Jun 8, 2014
- Messages
- 87
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- 8
Hi, I have trying to upload many photos, but there were bigger than permited, and is a bit boring upload to online services how imageshack, which delete it with the time.
I would like to contribute in the forums and I make a php script (I'm learning) for auto-resize the pictures to a correct width and height. This script scale it to a smaller format keeping the aspect ratio, and here how works:
First- I have a picture with any size:
Second- I put it in the function adjust() adding the filename between brackets:
Third- I execute the php code from cmd console (can be executed in browser):
Fourth- Ta daa, resized to correct width and height:
All these images has been converted with this script
Pd: It would be a honor introduce it in laserpointerforums image uploader. If it isn't possible I could make a javascript simple client aplication for users.
The code is divided in the library:
(This library isn't mine)
and the function:
I would like to contribute in the forums and I make a php script (I'm learning) for auto-resize the pictures to a correct width and height. This script scale it to a smaller format keeping the aspect ratio, and here how works:
First- I have a picture with any size:
Second- I put it in the function adjust() adding the filename between brackets:
Third- I execute the php code from cmd console (can be executed in browser):
Fourth- Ta daa, resized to correct width and height:
All these images has been converted with this script
Pd: It would be a honor introduce it in laserpointerforums image uploader. If it isn't possible I could make a javascript simple client aplication for users.
The code is divided in the library:
Code:
<?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 = $new_image;
}
}
?>and the function:
Code:
<?php
require_once 'library.php';
function adjust($filename) {
$image = new SimpleImage();
$image->load("$filename");
$getWidth = $image->getWidth("$filename");
$getHeight = $image->getHeight("$filename");
if($getWidth > 800 || $getHeight > 600){
if($getWidth/$getHeight < 4/3){
$height = 600;
$width = 600 * ($getWidth/$getHeight);
} else {
$width = 800;
$height = 800 / ($getWidth/$getHeight);
}
} else {
$width = $getWidth;
$height = $getHeight;
}
$image->resize("$width","$height");
$image->save("$filename");
}
adjust("test.jpg"); //Input here the filename
?>
