wp_mime_type_icon

What is WordPress Hook: wp_mime_type_icon

The wp_mime_type_icon hook is a specific hook in WordPress that allows developers to modify the icon displayed for a specific mime type.

Understanding the Hook: wp_mime_type_icon

The wp_mime_type_icon hook is located within the wp-includes/post.php file and is used to filter the icon displayed for a specific mime type in the media library.

Hook Parameters (if applicable): wp_mime_type_icon

The wp_mime_type_icon hook accepts two parameters: $icon and $mime. The $icon parameter represents the icon URL or HTML for the mime type, and the $mime parameter represents the mime type of the file.

Hook Doesn’t Work: wp_mime_type_icon

If the wp_mime_type_icon hook doesn’t work as expected, it may be due to incorrect usage of the hook or conflicts with other plugins or themes. It is recommended to double-check the code and deactivate other plugins or themes to troubleshoot the issue.

Best Practices & Usage Notes (if applicable): wp_mime_type_icon

When using the wp_mime_type_icon hook, it is important to note that not all mime types have icons associated with them by default. Developers should also consider the impact of modifying the icon for a specific mime type on the user experience and accessibility of the media library.

Usage Example: wp_mime_type_icon

“`php
function custom_mime_type_icon( $icon, $mime ) {
if ( ‘application/pdf’ === $mime ) {
$icon = ‘https://example.com/custom-pdf-icon.png’;
}
return $icon;
}
add_filter( ‘wp_mime_type_icon’, ‘custom_mime_type_icon’, 10, 2 );
“`

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