How to use iis7_url_rewrite_rules filter in WordPress

iis7_url_rewrite_rules filter

Filters the list of rewrite rules formatted for output to a web.config.

To use iis7_url_rewrite_rules 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_iis7_url_rewrite_rules_defaults which takes 1 parameter and we registered it using add_filter. The first parameter iis7_url_rewrite_rules is the name of the hook, the second parameter modify_iis7_url_rewrite_rules_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 iis7_url_rewrite_rules filter.

Parameters

Below the 1 parameter is required to use this hook.

• $rules: (string) Rewrite rules formatted for IIS web.config.

Live Example 1: Basic Usage

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

    function weplugins_modify_iis7_url_rewrite_rules_defaults($rules) {
        // Update the $rules variable according to your website requirements and return this variable. You can modify the $rules variable conditionally too if you want.
        return $rules;
    }
    // add the filter
    add_filter("iis7_url_rewrite_rules", "weplugins_modify_iis7_url_rewrite_rules_defaults", 10, 1);
    

Live Example 2: Conditional Modification

In this example, we conditionally modify the rewrite rules based on certain criteria.

    function weplugins_modify_iis7_url_rewrite_rules_conditional($rules) {
        if (is_page('example-page')) {
            // Modify $rules for a specific page
            $rules = 'custom rule';
        }
        return $rules;
    }
    add_filter("iis7_url_rewrite_rules", "weplugins_modify_iis7_url_rewrite_rules_conditional", 10, 1);
    

Live Example 3: Removing a Hook Callback

To remove a hook callback, use the example below.

    remove_filter("iis7_url_rewrite_rules", "weplugins_modify_iis7_url_rewrite_rules_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’re having any trouble using this hook, please contact our WordPress Development Team and we’d be happy to assist you.