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How to use iis7_supports_permalinks filter in WordPress

Sandeep Kumar Mishra
Sandeep Kumar Mishra
June 27, 2023
5 minutes read

Ever wondered how to make your IIS 7+ server play nicely with WordPress’s pretty permalinks? Well, you’re in the right place! Let’s dive into the iis7_supports_permalinks filter. This nifty little hook lets us determine whether IIS 7+ supports those aesthetically pleasing URL structures. It’s a handy tool to have in your WordPress toolkit, especially if you’re running a site on IIS. To get started, you’ll need to register this filter using add_filter in your theme’s functions.php or even better, in a custom plugin—ensuring your changes won’t get wiped out with theme updates.

At WePlugins, we always recommend creating a custom plugin for such tasks. This approach keeps your theme updates from messing with your customizations. Now, let’s check out some live examples!

Example 1: Basic Usage

Here’s a straightforward example of using the iis7_supports_permalinks filter. This code snippet hooks into the filter and allows you to modify the $supports_permalinks parameter based on your site’s needs.

    function weplugins_modify_iis7_supports_permalinks_defaults($supports_permalinks) { 
        // Update the $supports_permalinks variable according to your website requirements and return this variable.
        return $supports_permalinks; 
    }
    // add the filter
    add_filter("iis7_supports_permalinks", "weplugins_modify_iis7_supports_permalinks_defaults", 10, 1);
    

Example 2: Conditional Logic

Want to apply some logic before deciding if permalinks should be supported? Check this out. You can conditionally modify the $supports_permalinks variable.

    function weplugins_conditional_iis7_supports_permalinks($supports_permalinks) {
        if (some_condition()) {
            $supports_permalinks = true;
        }
        return $supports_permalinks;
    }
    add_filter("iis7_supports_permalinks", "weplugins_conditional_iis7_supports_permalinks", 10, 1);
    

Example 3: Removing a Filter

Need to remove a filter callback? No worries, here’s how you can do it. Just ensure the callback name, priority, and number of arguments match those used in add_filter.

    remove_filter("iis7_supports_permalinks", "weplugins_modify_iis7_supports_permalinks_defaults", 10, 1);
    

If you’re scratching your head or need a bit of customization, why not reach out to us? Visit our Contact Us page, and we’ll be more than happy to assist you!

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Sandeep Kumar Mishra

Sandeep Kumar Mishra

Sandeep Kumar Mishra writes about WordPress and Artificial Intelligence, offering tips and guides to help you master your website and stay updated with the latest tech trends.

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