PHP array log: back to php array variable

Suppose a file contains a following print_r() dump:


Array
(
    [page] => orders-paypal-payment-confirm.php
    [order_id] => 325
    [hash] => 921dad8ddc58e54ac8bfef66d6a19bba
    [mc_gross] => 19.00
    [protection_eligibility] => Ineligible
)

Is there a way to get back to the php’s array variable by reading this content?
(Just like unserialize($string))

Quick google search give this manual entry http://www.php.net/manual/en/function.print-r.php#93529