PHP Simple way to replace or remove empty lines with str_replace

Question

$line-out = str_replace(\'\\r\', \'\', str_replace(\'\\n\', \'\', $line-in));

The above works for me but, I saw a [\\n\\r] example somewhere and I

Answer 1

str_replace can be passed an array as:

$line_out = str_replace(array("\r","\n"), '', $line_in);