Php scaling image (proportional scaling based on width and height) instance introduction _ PHP Tutorial

Php scaling image (proportional scaling based on width and height) example. Recommended a simple and practical image scaling tool SimpleImage, reference www. white-hat-web-design.co.ukblogresizing-images-with-php use method: set the width and height, unequal proportional scaling recommended a simple and practical image scaling tool SimpleImage, refer to the http://www.white-hat-web-design.co.uk/blog/resizing-images-with-php/

Usage:

Set width and height, and scale proportionally

The code is as follows:

Include ('simpleimage. php ');
$ Image = new SimpleImage ();
$ Image-> load('picture.jpg ');
$ Image-> resize( 250,400 );
$ Image-> save('picture2.jpg ');?>

Set width and proportional scaling

Include ('simpleimage. php ');
$ Image = new SimpleImage ();
$ Image-> load('picture.jpg ');
$ Image-> resizeToWidth (250 );
$ Image-> save('picture2.jpg ');?>

Set height, proportional scaling

Include ('simpleimage. php ');
$ Image = new SimpleImage ();
$ Image-> load('picture.jpg ');
$ Image-> resizeToHeight (500 );
$ Image-> save('picture2.jpg ');
$ Image-> resizeToHeight (200 );
$ Image-> save('picture3.jpg ');?>

Scale to 50% in proportion

Include ('simpleimage. php ');
$ Image = new SimpleImage ();
$ Image-> load('picture.jpg ');
$ Image-> scale (50 );
$ Image-> save('picture2.jpg ');?>

Scale and output directly to the screen

Header ('content-Type: image/jpeg ');
Include ('simpleimage. php ');
$ Image = new SimpleImage ();
$ Image-> load('picture.jpg ');
$ Image-> resizeToWidth (150 );
$ Image-> output ();?>

SimpleImage. php source code. click the link at the beginning of the article to download it.

SimpleImage, refer to http://www.white-hat-web-design.co.uk/blog/resizing-images-with-php/ usage: set width and height, proportional scaling...