Download, Crop and save image in a specific directory is one of the most irritated task sometime I have to do. But as a web developer I got some skills to tackle this hectic task. 🙂
I have created a php script that download, crop and save image from url. I just have to pass image url in the input field, set dimensions and image will crop and save in the folder.
Also read
- How to upload multiple images in PHP and store in Mysql
- How to display images from folder in PHP
- jQuery Zoom Image on Hover
In this tutorial I am going to share the basic idea behind that code with you guys. If you are following my blog you people know that I write my blog post keeping PHP beginners in my mind. So lets start with basics. I will use some built-in image functions of PHP which are listed below.
| Function | Description |
|---|---|
| imagecreatefromjpeg($filename) | Create a new image from url or file |
| imagejpeg($image, $to, $quality) | Output JPEG file from the given image |
| imagepng($image, $to, $quality, $filters) | Output or save PNG file from given image |
| imagegif($image, $to) | creates the GIF file |
| imagecropauto($image, $mode, $threshold, $color) | Automatically crops an image according to the given mode. Modes are IMG_CROP_DEFAULT, IMG_CROP_TRANSPARENT, IMG_CROP_BLACK, IMG_CROP_WHITE, IMG_CROP_SIDES, IMG_CROP_THRESHOLD |
| imagesx($image) | Return the width of the given image |
| imagesy($image) | Return the height of the given image |
| imagecrop($image, $rect) | Crops an image to the given rectangular area and returns the resulting image. The given image is not modified. |
| imagedestroy() | Free memory associated with image |
I will be using following image throughout my examples.
|
1 2 3 |
 <?php $image = imagecreatefromjpeg("https://www.wdb24.com/wp-content/uploads/2018/02/php-curl-get.jpg"); ?>  |
Create JPEG:
|
1 2 3 |
 <?php imagejpeg($image, "my-image-1.jpg");?>  |
Create PNG:
|
1 2 3 |
 <?php imagepng($image, 'my-image-2.png'); ?>  |
Create GIF:
|
1 2 3 |
 <?php imagegif($image,'my-image-3.gif'); ?>  |
Auto Crop Image:
|
1 2 3 4 5 6 |
 <?php $cropImageAuto = imagecropauto($image, IMG_CROP_THRESHOLD, null, 16777215); imagejpeg($cropImageAuto, "my-image-4.jpg"); ?>  |
Auto Crop Manually:
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 |
 <?php  $image2 = imagecrop($image, ['x' => 150, 'y' => 60, 'width' => 400, 'height' => 300]);  if ($image2 !== FALSE) {     imagejpeg($image2, 'crop-image.jpg');     imagedestroy($image2); }  imagedestroy($image);  ?>  |