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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.
This hook occurs 3 times in this file.
| Line | Code |
|---|---|
| 467 | * @since 3.0.0 |
| 468 | * |
| 469 | * @param array $meta { |
| 470 | * An array of default site meta variables. |
| 471 | * |
| 472 | * @type int $lang_id The language ID. |
| 473 | * @type int $blog_public Whether search engines should be discouraged from indexing the site. 1 for true, 0 for false. |
| 474 | * } |
| 475 | */ |
| 476 | $meta = apply_filters( 'add_signup_meta', $meta_defaults ); |
| 477 | |
| 478 | $blog_id = wpmu_create_blog( $domain, $path, $blog_title, $current_user->ID, $meta, get_current_network_id() ); |
| 479 | |
| 480 | if ( is_wp_error( $blog_id ) ) { |
| 481 | return false; |
| 482 | } |
| 483 | |
| 484 | confirm_another_blog_signup( $domain, $path, $blog_title, $current_user->user_login, $current_user->user_email, $meta, $blog_id ); |
| 485 | return true; |
| Line | Code |
| 643 | return false; |
| 644 | } |
| 645 | |
| 646 | if ( 'blog' === $_POST['signup_for'] ) { |
| 647 | signup_blog( $user_name, $user_email ); |
| 648 | return false; |
| 649 | } |
| 650 | |
| 651 | /** This filter is documented in wp-signup.php */ |
| 652 | wpmu_signup_user( $user_name, $user_email, apply_filters( 'add_signup_meta', array() ) ); |
| 653 | |
| 654 | confirm_user_signup( $user_name, $user_email ); |
| 655 | return true; |
| 656 | } |
| 657 | |
| 658 | /** |
| 659 | * New user signup confirmation |
| 660 | * |
| 661 | * @since MU (3.0.0) |
| Line | Code |
| 795 | $language = wp_unslash( sanitize_text_field( $_POST['WPLANG'] ) ); |
| 796 | |
| 797 | if ( $language ) { |
| 798 | $signup_meta['WPLANG'] = $language; |
| 799 | } |
| 800 | } |
| 801 | } |
| 802 | |
| 803 | /** This filter is documented in wp-signup.php */ |
| 804 | $meta = apply_filters( 'add_signup_meta', $signup_meta ); |
| 805 | |
| 806 | wpmu_signup_blog( $domain, $path, $blog_title, $user_name, $user_email, $meta ); |
| 807 | confirm_blog_signup( $domain, $path, $blog_title, $user_name, $user_email, $meta ); |
| 808 | return true; |
| 809 | } |
| 810 | |
| 811 | /** |
| 812 | * Shows a message confirming that the new site has been registered and is awaiting activation. |
| 813 | * |