unable to open file error in php

1$myFile = '/path/to/myFile.txt';
2if (!file_exists($myFile)) {
3  print 'File not found';
4}
5else if(!$fh = fopen($myFile, 'w')) {
6  print 'Can\'t open file';
7}
8else {
9  print 'Success open file';
10}
11