Help with preg_match

[heroic]

i am trying to make a small search script, but i cannot get it to search for a particular keyword that may end in a space...

my input string is like...

amit qby:name hello

i want the preg_match to gimme qby:name

another input string can be

amit qby:name

i can get it to work for only one of the cases.. plz help...

[pritaeas]

if (preg_match('/qby:name/m', $subject)) {
	# Successful match
} 
else {
	# Match attempt failed
}