Question

kNO = "Get this value now if you can";

How do I get Get this value now if you can from that string? It looks easy but I don’t know where to start.

Answer 1

Start by reading PHP PCRE and see the examples. For your question:

$str = 'kNO = "Get this value now if you can";';
preg_match('/kNO\s+=\s+"([^"]+)"/', $str, $m);
echo $m[1]; // Get this value now if you can

Explanation:

kNO        Match with "kNO" in the input string
\s+        Follow by one or more whitespace
"([^"]+)"  Get any characters within double-quotes