Able to Read but not Write to a file using PHP/Apache on CentOS

$myfile = fopen(“testData.txt”, “r”) or die(“Unable to open file!”); echo fread($myfile,filesize(“testData.txt”)); fclose($myfile);

Above works! The following fails using either “a”-append or “w”-write!

$myfile = fopen(“testData.txt”, “a”) or die(“Unable to open file!”); $txt = “John Doe\n”; fwrite($myfile, $txt); $txt = “Jane Doe\n”; fwrite($myfile, $txt); fclose($myfile);

ls -l returns: -rw-rw-rw-. 1 user user 24 Dec24 07:54 testData.txt

I am sure that it is a permissions issue somewhere, but no clue where to look. PHP file and the data file are in the same directory (I know this is not good practice - just trying to eliminate as many variables as possible).

Thank you in advance.