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Convert Uploaded Images to WebP Format

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This snippet converts uploaded images (JPEG, PNG, GIF) to WebP format * automatically in WordPress. Ideal for use in a theme's functions.php file, * or with plugins like Code Snippets or WPCodeBox.

Language

PHP

Rating

Voted: 2 by 2 user(s)

Link for further information:

The author has provided the following URL that may be helpful to setting up or using this snippet:

https://www.youtube.com/watch?v=bYz6lDy7Sok

Codevault

duke_flambo

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Wordpress Compatability

The author has indicated that this snippet is compatable up to wordpress version: 6.1

Our AI bot has checked this snippet is compatable up to wordpress version: 6.1

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Snippet Source:

https://codesnippets.cloud/snippet/Super-Snippet-Storage/Convert-To-339

History

Last modified:

04/07/2024

Important Note

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AI Verified

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AI Bot Comments:

Potential vulnerability found : Arbitrary File Deletion
Found on line : 20
Code : unlink( $file_path )
Vulnerable line : 29
Code : $file_path = $upload['file']);

Potential vulnerability found : Arbitrary File Deletion
Found on line : 20
Code : unlink( $file_path )
Vulnerable line : 29
Code : $file_path = $upload['file']);

Found 2 vulnerabilities

Convert Uploaded Images to WebP Format

 
                    
 1/**
 2 * Convert Uploaded Images to WebP Format
 3 *
 4 * This snippet converts uploaded images (JPEG, PNG, GIF) to WebP format
 5 * automatically in WordPress. Ideal for use in a theme's functions.php file,
 6 * or with plugins like Code Snippets or WPCodeBox.
 7 *
 8 * @package    WordPress_Custom_Functions
 9 * @author     Mark Harris
10 * @link       www.christchurchwebsolutions.co.uk
11 *
12 * Usage Instructions:
13 * - Add this snippet to your theme's functions.php file, or add it as a new
14 *   snippet in Code Snippets or WPCodeBox.
15 * - The snippet hooks into WordPress's image upload process and converts
16 *   uploaded images to the WebP format.
17 *
18 * Optional Configuration:
19 * - By default, the original image file is deleted after conversion to WebP.
20 *   If you prefer to keep the original image file, simply comment out or remove
21 *   the line '@unlink( $file_path );' in the wpturbo_handle_upload_convert_to_webp function.
22 *   This will preserve the original uploaded image file alongside the WebP version.
23 */
24 
25add_filter( 'wp_handle_upload', 'wpturbo_handle_upload_convert_to_webp' );
26 
27function wpturbo_handle_upload_convert_to_webp( $upload ) {
28    if ( $upload['type'] == 'image/jpeg' || $upload['type'] == 'image/png' || $upload['type'] == 'image/gif' ) {
29        $file_path = $upload['file'];
30 
31        // Check if ImageMagick or GD is available
32        if ( extension_loaded( 'imagick' ) || extension_loaded( 'gd' ) ) {
33            $image_editor = wp_get_image_editor( $file_path );
34            if ( ! is_wp_error( $image_editor ) ) {
35                $file_info = pathinfo( $file_path );
36                $dirname   = $file_info['dirname'];
37                $filename  = $file_info['filename'];
38 
39                // Create a new file path for the WebP image
40                $new_file_path = $dirname . '/' . $filename . '.webp';
41 
42                // Attempt to save the image in WebP format
43                $saved_image = $image_editor->save( $new_file_path, 'image/webp' );
44                if ( ! is_wp_error( $saved_image ) && file_exists( $saved_image['path'] ) ) {
45                    // Success: replace the uploaded image with the WebP image
46                    $upload['file'] = $saved_image['path'];
47                    $upload['url']  = str_replace( basename( $upload['url'] ), basename( $saved_image['path'] ), $upload['url'] );
48                    $upload['type'] = 'image/webp';
49 
50                    // Optionally remove the original image
51                    @unlink( $file_path );
52                }
53            }
54        }
55    }
56 
57    return $upload;
58}

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