I'm writing a PHP script that adds numbers into a text file. I want to have one number on every line, like this:
1
5
8
12
If I use file_put_contents($filename, $commentnumber, FILE_APPEND), the result looks like:
15812
If I add a line break like file_put_contents($filename, $commentnumber . "\n", FILE_APPEND), spaces are added after each number and one empty line at the end (underscore represents spaces):
1_
5_
8_
12_
_
_
How do I get that function to add the numbers the way I want, without spaces?