PHP：提取字符串的版本号

Question

I get each time different string.

From the string i need to extract the version number. when the version number can come in different types like:

v1.3
V1.3
v 2.4.1
V 2.4.1

version1.3
version 1.3
Version2.4.1
Version 2.4.1

The output need to be: 1.3 or 2.4.1

one more problem is that string can contain numbers beside the version number.

what will be the fast way to do this task?

Answer 1

I'd use regex for this:

Code:

<?php

function getVersion($str) {
    preg_match("/(?:version|v)\s*((?:[0-9]+\.?)+)/i", $str, $matches);
    return $matches[1];
}

print_r(getVersion("Version 2.4.1"));

?>

Regex101:

https://regex101.com/r/6WnQKt/3