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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 |
|---|---|
| 3289 | * @type string $to The intended recipient - user email address. |
| 3290 | * @type string $subject The subject of the email. |
| 3291 | * @type string $message The body of the email. |
| 3292 | * @type string $headers The headers of the email. |
| 3293 | * } |
| 3294 | * @param string $key The activation key. |
| 3295 | * @param string $user_login The username for the user. |
| 3296 | * @param WP_User $user_data WP_User object. |
| 3297 | */ |
| 3298 | $notification_email = apply_filters( 'retrieve_password_notification_email', $defaults, $key, $user_login, $user_data ); |
| 3299 | |
| 3300 | if ( $switched_locale ) { |
| 3301 | restore_previous_locale(); |
| 3302 | } |
| 3303 | |
| 3304 | if ( is_array( $notification_email ) ) { |
| 3305 | // Force key order and merge defaults in case any value is missing in the filtered array. |
| 3306 | $notification_email = array_merge( $defaults, $notification_email ); |
| 3307 | } else { |