update_custom_css_data

What is WordPress Hook: update_custom_css_data

The update_custom_css_data hook in WordPress is used to modify the data for custom CSS. This hook allows developers to make changes to the custom CSS data before it is saved to the database.

Understanding the Hook: update_custom_css_data

The update_custom_css_data hook is located within the wp-includes/theme.php file in WordPress. It is called when custom CSS data is being updated, allowing developers to intervene and modify the data as needed.

Hook Parameters (if applicable): update_custom_css_data

The update_custom_css_data hook accepts a single parameter, $css, which contains the custom CSS data to be updated. Developers can modify this parameter as needed before it is saved to the database.

Hook Doesn’t Work: update_custom_css_data

If the update_custom_css_data hook doesn’t seem to be working, it could be due to a few reasons. First, ensure that the hook is being called at the correct time and in the correct location. Additionally, check for any conflicts with other functions or plugins that may be interfering with the hook.

Best Practices & Usage Notes (if applicable): update_custom_css_data

When using the update_custom_css_data hook, it’s important to keep in mind that any changes made to the $css parameter will directly impact the custom CSS data that is saved to the database. It’s best practice to thoroughly test any modifications to ensure they are functioning as intended.

Usage Example: update_custom_css_data

“`php
function modify_custom_css_data( $css ) {
// Make changes to the $css data here
$modified_css = $css . ‘/* Additional CSS */’;
return $modified_css;
}
add_filter( ‘update_custom_css_data’, ‘modify_custom_css_data’ );
“`

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