PHP range() function

The range() function returns an array of consecutive character values or integers between and including the two values that are passed as parameters.

Syntax:

array range($start, $end, $step)

This method accepts three parameters.

Parameters Values
start The first or lowest value of an array to be generated.
end

The last or highest value of an array to be generated.
step(optional) default value is 1, if given it is used as the value to increment or decrement by range to generate a sequence, it can not be 0 or outside the start and end parameters.

Return Value: An array consists of consecutive characters or integers between the start and end parameters.

The following example generates an array of numeric values.

			

$arraynumbers  = range(3, 9); // It returns array(3, 4, 5, 6, 7, 8, 9);
print_r ($arraynumbers);

Output:

Array ( [0] => 3 [1] => 4 [2] => 5 [3] => 6 [4] => 7 [5] => 8 [6] => 9 )

The following example generates an array of alphabets.

			

$arrayletters = range('a', 'z'); // Alphabets from A to Z
print_r ($arrayletters);

Output:

Array ( [0] => a [1] => b [2] => c [3] => d [4] => e [5] => f [6] => g [7] => h [8] => i [9] => j [10] => k [11] => l [12] => m [13] => n [14] => o [15] => p [16] => q [17] => r [18] => s [19] => t [20] => u [21] => v [22] => w [23] => x [24] => y [25] => z )

The following example generates reversed numbers.

			

$arrayrevnumbers = range(4, 1); // it returns array(4, 3, 2, 1);
print_r ($arrayrevnumbers);

Output:

Array ( [0] => 4 [1] => 3 [2] => 2 [3] => 1 )