Set any email header
- Multiple calls will append existing headers.
- To remove an existing header, specify NULL as the value.
Usage
$m->header($key, string $value);Arguments
| Name | Type(s) | Description |
|---|---|---|
key | string, array | Header name |
value | string | Header value or specify null to unset |
Return value
$thisObject instance it was called from (method supports fluent interface).
API reference based on ProcessWire core version 3.0.236