Problem with file reading

Hi, I'm a beginner and i'm still learning PHP and I got a problem: $file = "http://localhost/test_folder/test1.txt"; //I have also tried "test_folder/test1.txt" and "text1.txt" $fh = fopen($file, "r") or die("Could not open file!"); $data = fread($fh, filesize($file)) or die ("Could not read file!"); fclose($fh); echo $data; The file exist, I'm using apache server on my PC for practicing and the file is located in the servers root folder on the subfolder "test_folder". Help would be greatly appreaciated Thanks in advance!