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<!DOCTYPE html>
<html>
<body>
​
<?php
// Variable to check
$int = 122;
​
// Min value
$min = 1;
// Max value
$max = 200;
​
if (filter_var($int, FILTER_VALIDATE_INT, array("options" => array("min_range"=>$min, "max_range"=>$max))) === false) {
  echo("Variable value is not within the legal range");
} else {
  echo("Variable value is within the legal range");
}
?>
​
</body>
​
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</html>
​
Variable value is within the legal range