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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 |
|---|---|
| 19 | * |
| 20 | * @since MU (3.0.0) |
| 21 | */ |
| 22 | function do_signup_header() { |
| 23 | /** |
| 24 | * Fires within the head section of the site sign-up screen. |
| 25 | * |
| 26 | * @since 3.0.0 |
| 27 | */ |
| 28 | do_action( 'signup_header' ); |
| 29 | } |
| 30 | add_action( 'wp_head', 'do_signup_header' ); |
| 31 | |
| 32 | if ( !is_multisite() ) { |
| 33 | wp_redirect( wp_registration_url() ); |
| 34 | die(); |
| 35 | } |
| 36 | |
| 37 | if ( !is_main_site() ) { |