How to use edit_field filter in WordPress

edit_field filter

The dynamic portion of the hook name, $field, refers to the post field name.

To use edit_field filter, first you have to register it using add_filter. You can write this code into functions.php of your activated theme or in a custom WordPress Plugin.

We at WePlugins, always prefer to create a custom WordPress Plugin while using hooks so nothing breaks when you update your WordPress Theme in the future.

In the below live example, we have defined a function modify_edit_field_defaults which takes 2 parameters and we registered using add_filter. The first parameter edit_field is the name of the hook, the second parameter modify_edit_field_defaults is the name of the function which needs to be called, the third parameter is the priority of calling the hook if the same hook is used multiple times and the last parameter is the number of arguments (if any) to be passed in the registered function.

Sometime, you have to remove a registered hook so you can use remove_filter to remove edit_field filter.

Parameters

Below are the 2 parameters required to use this hook.

• $value: (mixed) Value of the post field.
• $post_id: (int) Post ID.

Live Examples

Example 1: Applying the Filter

Below is an example of how you can use this hook.

        function weplugins_modify_edit_field_defaults($value, $post_id) { 
            // Update the $value variable according to your website requirements and return this variable. You can modify the $value variable conditionally too if you want.
            return $value; 
        }
        // add the filter
        add_filter( "edit_field", "weplugins_modify_edit_field_defaults", 10, 2 );
        

Example 2: Removing the Filter

To remove a hook callback, use the example below.

        remove_filter( "edit_field", "weplugins_modify_edit_field_defaults", 10, 2 );
        

Please make sure to provide the same callback function name, priority, and number of arguments while removing the hook callback.

Example 3: Dynamic Hook Usage

Here’s how you can dynamically apply filters using the edit_field hook.

        apply_filters( "edit_{$field}", mixed $value, int $post_id );
        

Contact Us

If you’re having any trouble using this hook or need customization, please contact us and we’d be happy to assist you.