Using WordPress ‘populate_roles_250()’ PHP function
The `populate_roles_250()` function is used in WordPress version 2.5 to create and modify WordPress roles
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Using WordPress ‘paginate_comments_links()’ PHP function
Displays or retrieves pagination links for the comments on the current post.
Using WordPress ‘network_edit_site_nav()’ PHP function
Outputs the HTML for a network’s “Edit Site” tabular interface.
Using Gravity Forms ‘gform_user_registration_config_validation’ PHP filter
Learn how to use the gform_user_registration_config_validation filter in Gravity Forms to validate custom user registration configurations defined using the gform_user_registration_add_option_section and gform_user_registration_add_option_group hook