PHP: array with null shows different with print_r and var_dump

["Sanjay Mantoor" <sanjay.mantoor@xxxxxxxxx>]

Hello,

I am new to PHP and PHP community.

Following program outputs different values with print_r and var_dump.

$array = array(null, NULL);

print_r($array); prints values like below
Array
(
    [0] =>
    [1] =>
)

where as var_dump($array) prints values like below
array(2) {
  [0]=>
  NULL    // Does this convert to null to NULL?
  [1]=>
  NULL
}

Can you tell me why the above difference?


-- 
Thanks,
Sanjay Mantoor