How to use esc_html filter in WordPress

Example 1: Basic Filter Usage

First things first, to use the esc_html filter, you’ve got to register it with add_filter. Here’s a simple example you can throw into your theme’s functions.php or even better, a custom plugin!

    function weplugins_modify_esc_html_defaults($safe_text, $text) { 
        // Update the $safe_text variable according to your website requirements 
        return $safe_text; 
    }
    // add the filter
    add_filter( "esc_html", "weplugins_modify_esc_html_defaults", 10, 2 );
    

Example 2: Removing a Hook

Sometimes, you may want to remove a hook after it’s served its purpose. For that, remove_filter comes to the rescue.

    remove_filter( "esc_html", "weplugins_modify_esc_html_defaults", 10, 2 );
    

Remember, you need to provide the same callback function name, priority, and number of arguments when removing the hook.

Example 3: Customizing Safe Text

Here’s a more customized example where you might want to modify the $safe_text conditionally based on your site’s needs.

    function weplugins_custom_esc_html($safe_text, $text) { 
        if (condition_to_check) {
            // Modify $safe_text
        }
        return $safe_text; 
    }
    add_filter( "esc_html", "weplugins_custom_esc_html", 10, 2 );
    

Below are the two parameters required to use this hook:

• $safe_text: (string) The text after it has been escaped.
• $text: (string) The text prior to being escaped.

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