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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 |
---|---|
4153 | * |
4154 | * @type WP_User_Request $request User request object. |
4155 | * @type string $email The email address this is being sent to. |
4156 | * @type string $description Description of the action being performed so the user knows what the email is for. |
4157 | * @type string $confirm_url The link to click on to confirm the account action. |
4158 | * @type string $sitename The site name sending the mail. |
4159 | * @type string $siteurl The site URL sending the mail. |
4160 | * } |
4161 | */ |
4162 | $subject = apply_filters( 'user_request_action_email_subject', $subject, $email_data['sitename'], $email_data ); |
4163 |
|
4164 | $headers = ''; |
4165 |
|
4166 | /** |
4167 | * Filters the headers of the email sent when an account action is attempted. |
4168 | * |
4169 | * @since 5.4.0 |
4170 | * |
4171 | * @param string|array $headers The email headers. |