create a file on Linux

[scorpioy]

I use this to create and write a file:

$file= fopen("city.txt" , "w");
fwrite($file, $content); //fwrite -- Binary-safe file write
fclose($file);

but I got warning and the file is not created:

Warning: fopen(ec_cityid.txt) [function.fopen]: failed to open stream: Permission denied in /usr/local/www/.........php on line 6

Can someone help me on this? Thanks.

[Rodney_H_]

EDIT: It should work as you have it, if the directory that the file you want to create is in a 'writable' directory. Otherwise, you have to change permissions [MAN]chmod[/MAN] of the directory for the functions you want to work correctly.