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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 |
|---|---|
| 3376 | * |
| 3377 | * @type WP_User_Request $request User request object. |
| 3378 | * @type string $email The email address this is being sent to. |
| 3379 | * @type string $description Description of the action being performed so the user knows what the email is for. |
| 3380 | * @type string $confirm_url The link to click on to confirm the account action. |
| 3381 | * @type string $sitename The site name sending the mail. |
| 3382 | * @type string $siteurl The site URL sending the mail. |
| 3383 | * } |
| 3384 | */ |
| 3385 | $subject = apply_filters( 'user_request_action_email_subject', $subject, $email_data['sitename'], $email_data ); |
| 3386 | |
| 3387 | return wp_mail( $email_data['email'], $subject, $content ); |
| 3388 | } |
| 3389 | |
| 3390 | /** |
| 3391 | * Returns a confirmation key for a user action and stores the hashed version for future comparison. |
| 3392 | * |
| 3393 | * @since 4.9.6 |
| 3394 | * |