Package: php5 Version: 5.2.6.dfsg.1-1+lenny9 I realise this is an old version, but on looking through the bug reports and changelogs I see no mention of any similar bugs or actions to fix them, so I consider it possible that the bug still exists.
json_decode() does not always correctly decode integer values on large integers such as twitter status IDs. It subtracts 1, or sometimes 2, from the decoded value. This does not always happen and appears to be unpredictable. This is not an overflow error as the integers concerned, though large, are still below the limit for the 64-bit system on which I discovered the bug. Here are some examples of incorrect output, generated using command-line PHP with sample truncated twitter JSON strings: Subtracting 1: <?php $j='[{"created_at":"Mon Jan 14 01:01:28 +0000 2013","id":190624640131428353,"id_str":"190624640131428353"}]'; $a=190624640131428353; $b='190624640131428353'; $c=intval($a); $d=json_decode($j, true); $e=json_decode($j, false); var_dump($a); var_dump($b); var_dump($c); var_dump($d); var_dump($e); ?> int(190624640131428353) string(18) "190624640131428353" int(190624640131428353) array(1) { [0]=> array(3) { ["created_at"]=> string(30) "Mon Jan 14 01:01:28 +0000 2013" ["id"]=> int(190624640131428352) ["id_str"]=> string(18) "190624640131428353" } } array(1) { [0]=> object(stdClass)#1 (3) { ["created_at"]=> string(30) "Mon Jan 14 01:01:28 +0000 2013" ["id"]=> int(190624640131428352) ["id_str"]=> string(18) "190624640131428353" } } Subtracting 2: <?php $j='[{"created_at":"Mon Jan 14 01:01:28 +0000 2013","id":190624590269513730,"id_str":"190624590269513730"}]'; $a=190624590269513730; $b='190624590269513730'; $c=intval($a); $d=json_decode($j, true); $e=json_decode($j, false); var_dump($a); var_dump($b); var_dump($c); var_dump($d); var_dump($e); ?> int(190624590269513730) string(18) "190624590269513730" int(190624590269513730) array(1) { [0]=> array(3) { ["created_at"]=> string(30) "Mon Jan 14 01:01:28 +0000 2013" ["id"]=> int(190624590269513728) ["id_str"]=> string(18) "190624590269513730" } } array(1) { [0]=> object(stdClass)#1 (3) { ["created_at"]=> string(30) "Mon Jan 14 01:01:28 +0000 2013" ["id"]=> int(190624590269513728) ["id_str"]=> string(18) "190624590269513730" } } By comparison, the (larger) integer 190694799109677056 is handled correctly. -- Pigeon Be kind to pigeons - - Pigeon's Nest: http://pigeonsnest.co.uk/ - - Lucy Pinder TV: http://www.lucy-pinder.tv/ GPG key: http://pgp.mit.edu:11371/pks/lookup?op=get&search=0x21C61F7F
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