Write a PHP script that creates a very simple contact database using arrays. The script should define 5 first names. Assign each person an age. Your script should sort the list of names alphabetically, and then print (to the screen) each person's name and age.

Before:

Eric: age 28
Heather: age 31
Alan: age 34
Jenn: age 37
Vince: age 71

After:

Alan: age 34
Eric: age 28
Heather: age 31
Jenn: age 37
Vince: age 71