concatention and array

How to create a space between each array

[AliTaylor4411]

I have script which produces out in a table but the address is coming out as

Eg: 5 Brown RoadWhitleyWigan

This is the code which produced the above

$propertyaddress = $array[' propertyadd1'] . $array[ 'propertyadd2']. $array[ 'propertyadd3']. $array[ 'postcode'];

How do I get a space between Road and Whitley ad between Whitley and Wigan?

[Matthew1980]

$array['propertyadd1']." ".$array['propertyadd2']." ".$array['propertyadd3']." ".$array['postcode'];

Cheers,
MRb

[AliTaylor4411]

thank you Matt - now sorted!

Just another million things to sort now!