webfoo - 3:19 pm on Jun 26, 2013 (gmt 0)
UPDATE: I also tried using the fwrite() function and the result is the exact same -- the script executes, but does not update the file.
UPDATE #2: I added error reporting. Turns out permission was denied for both fopen/fwrite and file_put_contents.
So now the question becomes: are there alternatives to fwrite and file_put_contents? Or is there a way to enable these functions using .htaccess?