Question

How to make regex for -1:+1 pattern, where 1 is any integer?

I need to use it in preg_match(), but my regex skills are none…

Answer 1

<?php
$subject = "-100:+100";
$pattern = '/-\d+:\+\d+/';
preg_match($pattern, $subject, $matches);
print_r($matches);
?>

\d refers to digit,
+ means one or more of preceding
so \d+ is one or more digits and so on

Not Tested