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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 |
|---|---|
| 1611 | * |
| 1612 | * Returning false disables the welcome email. |
| 1613 | * |
| 1614 | * @since MU |
| 1615 | * |
| 1616 | * @param int $user_id User ID. |
| 1617 | * @param string $password User password. |
| 1618 | * @param array $meta Signup meta data. Default empty array. |
| 1619 | */ |
| 1620 | if ( ! apply_filters( 'wpmu_welcome_user_notification', $user_id, $password, $meta ) ) |
| 1621 | return false; |
| 1622 | |
| 1623 | $welcome_email = get_site_option( 'welcome_user_email' ); |
| 1624 | |
| 1625 | $user = get_userdata( $user_id ); |
| 1626 | |
| 1627 | $switched_locale = switch_to_locale( get_user_locale( $user ) ); |
| 1628 | |
| 1629 | /** |