What is WordPress Hook: allowed_block_types
The allowed_block_types hook in WordPress is used to control which block types are allowed to be used within the block editor. This hook allows developers to customize and restrict the available block types for specific users or roles.
Understanding the Hook: allowed_block_types
The allowed_block_types hook is located within the functions.php file of a WordPress theme or in a custom plugin. It is typically used to filter the list of allowed block types based on specific conditions or user roles.
Hook Parameters (if applicable): allowed_block_types
The allowed_block_types hook accepts an array of block type names as its parameter. Developers can specify which block types should be allowed by adding or removing them from the array.
Hook Doesn’t Work: allowed_block_types
If the allowed_block_types hook doesn’t work as expected, it may be due to conflicts with other plugins or themes that also modify the list of allowed block types. It is important to check for any conflicting code and ensure that the hook is being applied correctly.
Best Practices & Usage Notes (if applicable): allowed_block_types
When using the allowed_block_types hook, it is important to consider the impact on the user experience and content management. Limiting the available block types should be done thoughtfully to avoid restricting essential functionality for content creators.
Usage Example: allowed_block_types
“`php
function custom_allowed_block_types( $allowed_block_types, $post ) {
// Limit available block types for specific user roles
if ( current_user_can( ‘editor’ ) ) {
$allowed_block_types = array(
‘core/paragraph’,
‘core/image’,
‘core/heading’
);
}
return $allowed_block_types;
}
add_filter( ‘allowed_block_types’, ‘custom_allowed_block_types’, 10, 2 );
“`
