Description:
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I think PHP could use a function to determine whether a given number is between a specified lower and upper bound, with the option to specify whether those bounds should be included. It would save people a bit of work in having to code their own function or repeatedly type "if(x < upperBound && x > lowerBound)". A (very, very quick) search through the PEAR Math packages didn't turn up what I'm thinking of. Something like the following code:

Reproduce code:
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<?php
// Returns whether or not an operand is between two
// values, and can optionally do the comparison using
// upper and lower bounds inclusive.
function between($operand, $lower_bound, $upper_bound, $inclusive = true) {
    if($inclusive) {
        return ($operand >= $lower_bound && $operand <= $upper_bound);
    }
    else {
        return ($operand > $lower_bound && $operand < $upper_bound);
    }
}
?>