Newline in PHP command line

You need to use double quotes:

echo($string."\r");
             ^  ^

single quoted strings do not honor ANY metacharacters, except the backslash itself.

You can concatenate the PHP_EOL constant.

echo 'Hi, Im great!' . PHP_EOL;
echo 'And Handsome too' . PHP_EOL;

Use double quotes echo "next line\n";