How can PHP be used to check if a value lies within a specific range?

To check if a value lies within a specific range in PHP, you can use an if statement to compare the value with the lower and upper bounds of the range. If the value is greater than or equal to the lower bound and less than or equal to the upper bound, then it lies within the range. 

$value = 15;
$lower_bound = 10;
$upper_bound = 20;

if ($value >= $lower_bound && $value <= $upper_bound) {
    echo "The value $value lies within the range of $lower_bound to $upper_bound.";
} else {
    echo "The value $value does not lie within the range of $lower_bound to $upper_bound.";
}

Keywords

PHP range comparison conditional validation

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