\d{0,2}a digit, repeated between 0 and 2 times
.any character (except for line terminators)
\d{3}a digit, repeated exactly 3 times
.any character (except for line terminators)
\d{2}a digit, repeated exactly 2 times
Positive Lookahead(?=<span>PKT<\/span>) <span>PKT<the literal text <span>PKT< (case sensitive) \/the literal / (4710 / 578 / 2F16)
span>the literal text span> (case sensitive) g modifier: global. Finds all matches instead of stopping after the first