Uploading images is a common task in almost every websites. Only displaying the original images will make the site load slower. That’s why we need to create a thumbnail for each image and show it by default.
CodeIgnitor provides a built-in class called Image Manipulation to make creating thumbnail easy to complete.
Image Manipulation class allows you to perform the following actions:
- Resizing
- Thumbnail Creation
- Cropping
- Rotating
- Watermarking
[php]
$image = ‘.upload/gallery/test_image_001.jpg’
$config_manip = array(
‘image_library’ => ‘gd2’,
‘source_image’ => $image,
‘new_image’ => $image,
‘maintain_ratio’ => TRUE,
‘create_thumb’ => TRUE,
‘thumb_marker’ => ‘_thumbnaul’,
‘width’ => 150,
‘height’ => 150,
);
$this->load->library(‘image_lib’);
$this->image_lib->initialize($config_manip);
$this->image_lib->resize();
$this->image_lib->clear();
[/php]
This function will create a 150×150 thumbnail called test_image_001_thumbnail.jpg in ./upload/gallery/.
All available parameters of Image Manipulation can be found on https://www.codeigniter.com/userguide3/libraries/image_lib.html.