wp_auth_check_same_domain

What is WordPress Hook: wp_auth_check_same_domain

The wp_auth_check_same_domain hook is a specific hook in WordPress that is used to check if the authentication cookie is being generated for the same domain as the site URL.

Understanding the Hook: wp_auth_check_same_domain

The wp_auth_check_same_domain hook is located within the wp_validate_auth_cookie function in the wp-includes/pluggable.php file. This function is responsible for validating the authentication cookie and checking if it is being generated for the same domain as the site URL.

Hook Parameters (if applicable): wp_auth_check_same_domain

The wp_auth_check_same_domain hook does not accept any arguments or parameters.

Hook Doesn’t Work: wp_auth_check_same_domain

If the wp_auth_check_same_domain hook doesn’t work as expected, it could be due to a conflict with another plugin or theme function that is modifying the authentication process. It is recommended to deactivate other plugins and switch to a default theme to troubleshoot the issue.

Best Practices & Usage Notes (if applicable): wp_auth_check_same_domain

When using the wp_auth_check_same_domain hook, it is important to note that it is a critical security check to ensure that the authentication cookie is only generated for the same domain as the site URL. It is best practice to avoid modifying or removing this hook unless absolutely necessary for specific customization needs.

Usage Example: wp_auth_check_same_domain

“`php
function custom_auth_check_same_domain() {
// Custom code to modify the authentication check for the same domain
}
add_action( ‘wp_auth_check_same_domain’, ‘custom_auth_check_same_domain’ );
“`

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