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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 |
|---|---|
| 1922 | * |
| 1923 | * @type string $to The intended recipient - New user email address. |
| 1924 | * @type string $subject The subject of the email. |
| 1925 | * @type string $message The body of the email. |
| 1926 | * @type string $headers The headers of the email. |
| 1927 | * } |
| 1928 | * @param WP_User $user User object for new user. |
| 1929 | * @param string $blogname The site title. |
| 1930 | */ |
| 1931 | $wp_new_user_notification_email = apply_filters( 'wp_new_user_notification_email', $wp_new_user_notification_email, $user, $blogname ); |
| 1932 | |
| 1933 | wp_mail( |
| 1934 | $wp_new_user_notification_email['to'], |
| 1935 | wp_specialchars_decode( sprintf( $wp_new_user_notification_email['subject'], $blogname ) ), |
| 1936 | $wp_new_user_notification_email['message'], |
| 1937 | $wp_new_user_notification_email['headers'] |
| 1938 | ); |
| 1939 | |
| 1940 | if ( $switched_locale ) { |