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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 |
|---|---|
| 63 | <h1 class="wp-heading-inline"> |
| 64 | <?php |
| 65 | echo esc_html( $title ); |
| 66 | ?> |
| 67 | </h1> |
| 68 | |
| 69 | <?php |
| 70 | if ( in_array( get_site_option( 'registration' ), array( 'all', 'blog' ), true ) ) { |
| 71 | /** This filter is documented in wp-login.php */ |
| 72 | $sign_up_url = apply_filters( 'wp_signup_location', network_site_url( 'wp-signup.php' ) ); |
| 73 | printf( ' <a href="%s" class="page-title-action">%s</a>', esc_url( $sign_up_url ), esc_html_x( 'Add New', 'site' ) ); |
| 74 | } |
| 75 | |
| 76 | if ( empty( $blogs ) ) : |
| 77 | echo '<p>'; |
| 78 | _e( 'You must be a member of at least one site to use this page.' ); |
| 79 | echo '</p>'; |
| 80 | else : |
| 81 | ?> |