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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 |
|---|---|
| 7 | |
| 8 | require( './wp-blog-header.php' ); |
| 9 | |
| 10 | if ( is_array( get_site_option( 'illegal_names' )) && isset( $_GET[ 'new' ] ) && in_array( $_GET[ 'new' ], get_site_option( 'illegal_names' ) ) == true ) { |
| 11 | wp_redirect( network_home_url() ); |
| 12 | die(); |
| 13 | } |
| 14 | |
| 15 | function do_signup_header() { |
| 16 | do_action( 'signup_header' ); |
| 17 | } |
| 18 | add_action( 'wp_head', 'do_signup_header' ); |
| 19 | |
| 20 | function signuppageheaders() { |
| 21 | echo "<meta name='robots' content='noindex,nofollow' />\n"; |
| 22 | } |
| 23 | |
| 24 | if ( !is_multisite() ) { |
| 25 | wp_redirect( site_url('wp-login.php?action=register') ); |