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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 |
|---|---|
| 416 | * @since 3.0.0 |
| 417 | * |
| 418 | * @param array $meta { |
| 419 | * An array of default site meta variables. |
| 420 | * |
| 421 | * @type int $lang_id The language ID. |
| 422 | * @type int $blog_public Whether search engines should be discouraged from indexing the site. 1 for true, 0 for false. |
| 423 | * } |
| 424 | */ |
| 425 | $meta = apply_filters( 'add_signup_meta', $meta_defaults ); |
| 426 | |
| 427 | $blog_id = wpmu_create_blog( $domain, $path, $blog_title, $current_user->ID, $meta, get_current_network_id() ); |
| 428 | |
| 429 | if ( is_wp_error( $blog_id ) ) { |
| 430 | return false; |
| 431 | } |
| 432 | |
| 433 | confirm_another_blog_signup( $domain, $path, $blog_title, $current_user->user_login, $current_user->user_email, $meta, $blog_id ); |
| 434 | return true; |
| Line | Code |
| 584 | return false; |
| 585 | } |
| 586 | |
| 587 | if ( 'blog' == $_POST['signup_for'] ) { |
| 588 | signup_blog($user_name, $user_email); |
| 589 | return false; |
| 590 | } |
| 591 | |
| 592 | /** This filter is documented in wp-signup.php */ |
| 593 | wpmu_signup_user( $user_name, $user_email, apply_filters( 'add_signup_meta', array() ) ); |
| 594 | |
| 595 | confirm_user_signup($user_name, $user_email); |
| 596 | return true; |
| 597 | } |
| 598 | |
| 599 | /** |
| 600 | * New user signup confirmation |
| 601 | * |
| 602 | * @since MU (3.0.0) |
| Line | Code |
| 724 | |
| 725 | if ( $language ) { |
| 726 | $signup_meta['WPLANG'] = $language; |
| 727 | } |
| 728 | } |
| 729 | |
| 730 | } |
| 731 | |
| 732 | /** This filter is documented in wp-signup.php */ |
| 733 | $meta = apply_filters( 'add_signup_meta', $signup_meta ); |
| 734 | |
| 735 | wpmu_signup_blog($domain, $path, $blog_title, $user_name, $user_email, $meta); |
| 736 | confirm_blog_signup($domain, $path, $blog_title, $user_name, $user_email, $meta); |
| 737 | return true; |
| 738 | } |
| 739 | |
| 740 | /** |
| 741 | * New site signup confirmation |
| 742 | * |