How to detect if a string has a new line break in it?

Question

This doesn\'t work:

$string = \'Hello
    world\';

if(strpos($string, \'\\n\')) {
    echo \'New line break found\';
}
else {
    echo \'not found\';
}
<         


        

Answer 1

line break is \r\n on windows and on UNIX machines it is \n. so its search for PHP_EOL instead of "\n" for cross-OS compatibility, or search for both "\r\n" and "\n".