Uploading images is a common task on almost every website. 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 on the list page. CodeIgniter provides a nice built-in library for creating thumbnails without having to write a lot of code.
CodeIgnitor provides a built-in class called Image Manipulation to make creating thumbnails easy to complete.
Image Manipulation class allows you to perform the following actions:
- Resizing
- Thumbnail Creation
- Cropping
- Rotating
- Watermarking
$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();
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 at https://www.codeigniter.com/userguide3/libraries/image_lib.html.
