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View Full Version : Resize Image in PHP



kamal11
01-06-2012, 07:53 AM
Hey please tell me how to resize the uploaded file in php.. can u tell me the full code for it ??

tangoforce
01-06-2012, 02:32 PM
Courtesy of Simon Jarvis:


<?
/*
* 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=100, $permissions=null)
{
switch ($image_type)
{
case IMAGETYPE_JPEG:
case 'image/jpeg':
imagejpeg($this->image,$filename,$compression);
break;
case IMAGETYPE_GIF:
case 'image/gif':
imagegif($this->image,$filename);
break;
case IMAGETYPE_BMP:
case 'image/bmp':
imagewbmp($this->image,$filename);
break;
}

if( $permissions != null) {
chmod($filename,$permissions);
}
}
function output($image_type=IMAGETYPE_JPEG)
{
switch ($image_type)
{
case IMAGETYPE_JPEG:
case 'image/jpeg':
imagejpeg($this->image);
break;
case IMAGETYPE_GIF:
case 'image/gif':
imagegif($this->image);
break;
case IMAGETYPE_BMP:
case 'image/bmp':
imagewbmp($this->image);
break;
}
}

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;
}
}
?>



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