PHP string from array

PHP string from array

I have a function in PHP which prints this
Array ( [ladygaga] => 2 [marcus] => 1 [brigstocke] => 1 [georgejeie] => 1
[george] => 1 [dbeckham] => 1 [becks] => 1 ) 1
How to I extract the word strings? That is to say, I want to collect the
individual strings of each word so I can call each word individually like
"lady gaga", "marcus" etc... and then I'll assign these to html parameters
Thank you