正则表达式的独特问题

Question

I have really strange issue with regex, I am testing using LINK Please only test there as it works exactly the same as on my machine. I should be able only to see following text: "Audit Note by 3 4 5 6 7" But I can see an empty array. I know that this code works on regex101.com Please help

Regex LINK

$string = "1

2

Audit Note by 3
4 
5
6
7

I don't need this line

I don't need this line
";

preg_match("/^Audit Note by(.*$)^$/ms",$string, $nmatch);
echo $nmatch[0];

Answer 1

Rather than using ^$ to match a new line you can use \R and use this code:

$string = "1

2

Audit Note by 3
4
5
6
7

I don't need this line

I don't need this line
";

preg_match('/^(Audit Note by.*?)\R\R/ms',$string, $nmatch);
echo $nmatch[1];

\R\R matches 2 consecutive line breaks of any type.

Output:

Audit Note by 3
4
5
6