have aproblem in my zend 5 program

[like_php]

hi for all

I have zend studio 5 , it was work very well but now that doesnt work , that manipulate with the php file as any text file and i were while i want type any php code that show all php functions start with this char

for example whwn i want to write mysql_query()
show all function start with m like mysql_num_rows,mysql_fetch_array() and so on

but now no , hope u can help

thank you