How to use print_footer_scripts filter in WordPress

print_footer_scripts filter

Filters whether to print the footer scripts.

To use print_footer_scripts 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 weplugins_modify_print_footer_scripts_defaults which takes 1 parameter and we registered using add_filter. The first parameter print_footer_scripts is the name of the hook, the second parameter weplugins_modify_print_footer_scripts_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 print_footer_scripts filter.

Parameters

Below the 1 parameter is required to use this hook.

• $print : (bool) Whether to print the footer scripts. Default true.

Live Example

apply_filters( 'print_footer_scripts', bool $print )

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

Example 1: Modifying Footer Scripts

This example demonstrates how you can modify the footer scripts using the print_footer_scripts filter.

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

Example 2: Conditional Footer Scripts

In this example, we conditionally modify the footer scripts based on a specific condition.

    function weplugins_modify_print_footer_scripts_conditionally($print) {
        if ( is_home() ) {
            $print = false; // Don't print footer scripts on the homepage
        }
        return $print; 
    }
    // add the filter
    add_filter( "print_footer_scripts", "weplugins_modify_print_footer_scripts_conditionally", 10, 1 );
    

Example 3: Removing a Hook Callback

To remove a hook callback, use the example below.

    remove_filter( "print_footer_scripts", "weplugins_modify_print_footer_scripts_defaults", 10, 1 );
    

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

Contact Us

If you need any customization or assistance with this hook, feel free to contact us.