How to use htmledit_pre filter in WordPress

htmledit_pre filter

Filters the text before it is formatted for the HTML editor. To use htmledit_pre 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 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_htmledit_pre_defaults which takes 1 parameter and we registered using add_filter. The first parameter htmledit_pre is the name of the hook, the second parameter modify_htmledit_pre_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.

Sometimes, you have to remove a registered hook, so you can use remove_filter to remove htmledit_pre filter.

Parameters

Below is the 1 parameter required to use this hook.

• $output: (string) The HTML-formatted text.

Example 1: Basic Usage

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

    function weplugins_modify_htmledit_pre_defaults($output) { 
        // Update the $output variable according to your website requirements and return this variable.
        // You can modify the $output variable conditionally too if you want.
        return $output; 
    }
    // add the filter
    add_filter( "htmledit_pre", "weplugins_modify_htmledit_pre_defaults", 10, 1 );
    

Example 2: Removing a Hook

To remove a hook callback, use the example below.

    remove_filter( "htmledit_pre", "weplugins_modify_htmledit_pre_defaults", 10, 1 );
    

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

Example 3: Conditional Modification

Sometimes you might want to modify the output based on certain conditions.

    function weplugins_conditional_htmledit_pre($output) { 
        if (strpos($output, 'specific-word') !== false) {
            $output .= ' - Added text based on condition';
        }
        return $output; 
    }
    // add the filter
    add_filter( "htmledit_pre", "weplugins_conditional_htmledit_pre", 10, 1 );
    

Contact Us

If you’re having any trouble using this hook, please Contact Us and we’d be happy to assist you.