__toString()
__toString() : string
String representation of object.
Returns
string —Returns the full e-mail address.
Object representation of an RFC 822 element.
writeAddress(mixed  $opts = array()) : string
                Write an address given information in this part.
| mixed | $opts | If boolean true, is equivalent to passing true for both 'encode' and 'idn'. If an array, these keys are supported: 
 | 
The correctly escaped/quoted address.