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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 |
|---|---|
| 3294 | * @type WP_User_Request $request User request object. |
| 3295 | * @type string $user_email The email address confirming a request |
| 3296 | * @type string $description Description of the action being performed so the user knows what the email is for. |
| 3297 | * @type string $manage_url The link to click manage privacy requests of this type. |
| 3298 | * @type string $sitename The site name sending the mail. |
| 3299 | * @type string $siteurl The site URL sending the mail. |
| 3300 | * @type string $admin_email The administrator email receiving the mail. |
| 3301 | * } |
| 3302 | */ |
| 3303 | $subject = apply_filters( 'user_request_confirmed_email_subject', $subject, $email_data['sitename'], $email_data ); |
| 3304 | |
| 3305 | $headers = ''; |
| 3306 | |
| 3307 | /** |
| 3308 | * Filters the headers of the user request confirmation email. |
| 3309 | * |
| 3310 | * @since 5.4.0 |
| 3311 | * |
| 3312 | * @param string|array $headers The email headers. |