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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )apply_filters( "hook_name", "what_to_filter" ).Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
| Line | Code |
|---|---|
| 201 | } |
| 202 | } else { |
| 203 | // Adding a new user to this site. |
| 204 | $new_user_email = wp_unslash( $_REQUEST['email'] ); |
| 205 | $user_details = wpmu_validate_user_signup( $_REQUEST['user_login'], $new_user_email ); |
| 206 | if ( is_wp_error( $user_details['errors'] ) && $user_details['errors']->has_errors() ) { |
| 207 | $add_user_errors = $user_details['errors']; |
| 208 | } else { |
| 209 | /** This filter is documented in wp-includes/user.php */ |
| 210 | $new_user_login = apply_filters( 'pre_user_login', sanitize_user( wp_unslash( $_REQUEST['user_login'] ), true ) ); |
| 211 | if ( isset( $_POST['noconfirmation'] ) && current_user_can( 'manage_network_users' ) ) { |
| 212 | add_filter( 'wpmu_signup_user_notification', '__return_false' ); // Disable confirmation email. |
| 213 | add_filter( 'wpmu_welcome_user_notification', '__return_false' ); // Disable welcome email. |
| 214 | } |
| 215 | wpmu_signup_user( |
| 216 | $new_user_login, |
| 217 | $new_user_email, |
| 218 | array( |
| 219 | 'add_to_blog' => get_current_blog_id(), |