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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 |
|---|---|
| 1193 | * @param int $user_id |
| 1194 | * @param string $password |
| 1195 | * @param string $title The new blog's title |
| 1196 | * @param array $meta Optional. Not used in the default function, but is passed along to hooks for customization. |
| 1197 | * @return bool |
| 1198 | */ |
| 1199 | function wpmu_welcome_notification($blog_id, $user_id, $password, $title, $meta = '') { |
| 1200 | global $current_site; |
| 1201 | |
| 1202 | if ( !apply_filters('wpmu_welcome_notification', $blog_id, $user_id, $password, $title, $meta) ) |
| 1203 | return false; |
| 1204 | |
| 1205 | $welcome_email = get_site_option( 'welcome_email' ); |
| 1206 | if ( $welcome_email == false ) |
| 1207 | $welcome_email = __( 'Dear User, |
| 1208 | |
| 1209 | Your new SITE_NAME site has been successfully set up at: |
| 1210 | BLOG_URL |
| 1211 | |