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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 |
|---|---|
| 3004 | * |
| 3005 | * @since 2.8.0 |
| 3006 | * @since 4.1.0 Added `$user_login` and `$user_data` parameters. |
| 3007 | * |
| 3008 | * @param string $message Email message. |
| 3009 | * @param string $key The activation key. |
| 3010 | * @param string $user_login The username for the user. |
| 3011 | * @param WP_User $user_data WP_User object. |
| 3012 | */ |
| 3013 | $message = apply_filters( 'retrieve_password_message', $message, $key, $user_login, $user_data ); |
| 3014 | |
| 3015 | if ( $switched_locale ) { |
| 3016 | restore_previous_locale(); |
| 3017 | } |
| 3018 | |
| 3019 | if ( $message && ! wp_mail( $user_email, wp_specialchars_decode( $title ), $message ) ) { |
| 3020 | $errors->add( |
| 3021 | 'retrieve_password_email_failure', |
| 3022 | sprintf( |