How to check if an integer is within a range of numbers in PHP?

Question

How can I check if a given number is within a range of numbers?

Answer 1

The expression:

 ($min <= $value) && ($value <= $max) 

will be true if $value is between $min and $max, inclusively

See the PHP docs for more on comparison operators

Answer 2

You can use filter_var

filter_var(     $yourInteger,      FILTER_VALIDATE_INT,      array(         'options' => array(             'min_range' => $min,              'max_range' => $max         )     ) ); 

This will also allow you to specify whether you want to allow octal and hex notation of integers. Note that the function is type-safe. 5.5 is not an integer but a float and will not validate.

Detailed tutorial about filtering data with PHP:

• https://phpro.org/tutorials/Filtering-Data-with-PHP.html