Something wrong with the file() command.

I try to give it a value with a var, but it doesn't work. The code is something like this. $y=str_pad($y,5,".txt"); \\ To give it a filename from a var that contains only 1 number (with 1 digit) If in this step I do a "echo $y, it shows the correct string. Suposing it is 2, it shows 2.txt $temp[]=file($y); \\ To load the file into the array. But after the file nothing happens, the array only contains "Array". Sorry for my bad english. Jose. Olinet S.L.