Resize images with PHP

Resize Images with PHP

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Download an image and rename as pic1 in jpg format save in your root directory where php files are running.Create following 2 php file and run img.php

img.php

<?php    include('Image.php');    $image = new Image();    $image->load('pic1.jpg');    $image->resize(250,400);    $image->save('pic2.jpg'); ?>

Image.php 

<?php  class Image {    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;    }     } ?> <img src="pic1.jpg"> <img src="pic2.jpg">