Each array key MUST be a string representing the case-insensitive name
of a header. Each value MUST be either a string or an array of strings.
For each value, the value is appended to any existing header of the same
name, or, if a header does not already exist by the given name, then the
header is added.
public addHeaders ( array $headers ) : void | ||
$headers | array | Associative array of headers to add to the message |
리턴 | void |