WP hooks navigation: Home/browse • Actions index • Filters index
To save our bandwidth, we show only a snippet of code around each occurence of the hook. View complete file in SVN (without highlighting).
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 |
|---|---|
| 567 | |
| 568 | // do not allow users to create a blog that conflicts with a page on the main blog. |
| 569 | if ( !is_subdomain_install() && $wpdb->get_var( $wpdb->prepare( "SELECT post_name FROM " . $wpdb->get_blog_prefix( $current_site->blog_id ) . "posts WHERE post_type = 'page' AND post_name = %s", $blogname ) ) ) |
| 570 | $errors->add( 'blogname', __( 'Sorry, you may not use that site name.' ) ); |
| 571 | |
| 572 | // all numeric? |
| 573 | if ( preg_match( '/^[0-9]*$/', $blogname ) ) |
| 574 | $errors->add('blogname', __('Sorry, site names must have letters too!')); |
| 575 | |
| 576 | $blogname = apply_filters( 'newblogname', $blogname ); |
| 577 | |
| 578 | $blog_title = wp_unslash( $blog_title ); |
| 579 | |
| 580 | if ( empty( $blog_title ) ) |
| 581 | $errors->add('blog_title', __( 'Please enter a site title.' ) ); |
| 582 | |
| 583 | // Check if the domain/path has been used already. |
| 584 | if ( is_subdomain_install() ) { |
| 585 | $mydomain = $blogname . '.' . preg_replace( '|^www\.|', '', $domain ); |