Tested your 3 ways with a 1000000-times-loop.
t1_test1: ($val >= $min && $val <= $max)
: 0.3823 ms
t2_test2: (in_array($val, range($min, $max))
: 9.3301 ms
t3_test3: (max(min($var, $max), $min) == $val)
: 0.7272 ms
T1 was fastest, it was basicly this:
function t1($val, $min, $max) {
return ($val >= $min && $val <= $max);
}
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