如何使用PHP将其解析为数组？

Apple's app store sends this object back as a receipt. I want to parse it into an array. What's the easiest way to do this?

{
    "signature" = "AlHSJDRPuOhUBrIarX84l/YeP+ZpxYyd592/oyF7MkVYb/s13L2W8ag2C+PG0wSHPthbv9dNMBsG4TGg3aP7r7N+oa9Rsp9C3Qu03Z9b7PRzYM2KGXHDmOMk7vDpeMVlLDPSGYz1+U3sDxJzebSpbaJmT7imzUKfggEY7xxf4czfH0yj5wNzSGTOvQ==";
    "purchase-info" = "ewoJIm9yaWdpbmFsLXB1cmNoYXNlLWRhdGUtcHN0IiA9ICIyMDE2LTAzLTIyIDEwOjUxOjAzIEFtZXJpY2EvTG9zX0Fucm9wYXRoLmZpcnN0IjsKCSJwdXJjaGFzZS1kYXRlLXBzdCIgP0wMy0yMiAxMDo1MTowMSBBbWVyaWNhL0xvc19BbmdlbGVzIjsKCSJxdWFudGl0eSIgPSAiMSI7Cn0=";
    "environment" = "Sandbox";
    "pod" = "100";
    "signing-status" = "0";
}

Please notice that it's not JSON, and json_decode does not work on it.

Here is another quick example which may be a little easier to read for those not used to regular expressions:

$response = '{
"signature" = "AlHSJDRPuOhUBrIarX84l/YeP+ZpxYyd592/oyF7MkVYb/s13L2W8ag2C+PG0wSHPthbv9dNMBsG4TGg3aP7r7N+oa9Rsp9C3Qu03Z9b7PRzYM2KGXHDmOMk7vDpeMVlLDPSGYz1+U3sDxJzebSpbaJmT7imzUKfggEY7xxf4czfH0yj5wNzSGTOvQ==";
"purchase-info" = "ewoJIm9yaWdpbmFsLXB1cmNoYXNlLWRhdGUtcHN0IiA9ICIyMDE2LTAzLTIyIDEwOjUxOjAzIEFtZXJpY2EvTG9zX0Fucm9wYXRoLmZpcnN0IjsKCSJwdXJjaGFzZS1kYXRlLXBzdCIgP0wMy0yMiAxMDo1MTowMSBBbWVyaWNhL0xvc19BbmdlbGVzIjsKCSJxdWFudGl0eSIgPSAiMSI7Cn0=";
"environment" = "Sandbox";
"pod" = "100";
"signing-status" = "0";
}';

$response = trim(str_replace(array('{', '}', '"', '    ', ';'), '', $response));
$responseLines = explode("
", $response);

$result = array();
foreach ($responseLines as $responseLine) {
    $lineElements = explode(" = ", $responseLine);
    $result[$lineElements[0]] = $lineElements[1];
}

var_dump($result);