Doc #60418 [Asn->Csd]: json_encode() => Object and Array conversion behavior

Edit report at https://bugs.php.net/bug.php?id=60418&edit=1 ID: 60418 Updated by: frozenfire@php.net Reported by: alain dot laporte12345 at gmail dot com Summary: json_encode() => Object and Array conversion behavior -Status: Assigned +Status: Closed Type: Documentation Problem Package: Documentation problem PHP Version: 5.3.8 Assigned To: frozenfire Block user comment: N Private report: N New Comment: This bug has been fixed in the documentation's XML sources. Since the online and downloadable versions of the documentation need some time to get updated, we would like to ask you to be a bit patient. Thank you for the report, and for helping us make our documentation better. Previous Comments: ------------------------------------------------------------------------ [2011-12-06 23:36:14] frozenfire@php.net Automatic comment from SVN on behalf of frozenfire Revision: http://svn.php.net/viewvc/?view=revision&amp;revision=320527 Log: Noted non-sequential array encoding behaviour, and added example. Closes bug #60418. ------------------------------------------------------------------------ [2011-12-06 23:16:44] frozenfire@php.net That's a very interesting behaviour that I wasn't aware of. http://svn.php.net/viewvc/php/php-src/trunk/ext/json/json.c? revision=318178&view=markup#l175 This section of code essentially says that if any of the keys are not in numerical order, the keys are all treated as strings. I'll definitely document this. ------------------------------------------------------------------------ [2011-12-06 22:37:25] alain dot laporte12345 at gmail dot com Here a example code : #!/usr/bin/php <?php $toto = array("toto", "titi", "tata"); var_dump($toto); var_dump(json_encode($toto)); unset($toto[1]); var_dump($toto); var_dump(json_encode($toto)); ?> The output : array(3) { [0]=> string(4) "toto" [1]=> string(4) "titi" [2]=> string(4) "tata" } string(22) "["toto","titi","tata"]" array(2) { [0]=> string(4) "toto" [2]=> string(4) "tata" } string(23) "{"0":"toto","2":"tata"}" The first json_encode convert $toto to an array. And the second, after delete the second element, convert $toto to an object. This behavior must be strange when we don't know the JSON definition about array and object, explicited here => http://www.json.org/ * "An object is an unordered set of name/value pairs" * "An array is an ordered collection of values" ------------------------------------------------------------------------ [2011-12-03 03:51:35] frozenfire@php.net I'm unsure what behaviour exactly that you're indicating needs to be documented. Could you please provide some example code, so that we do not need to guess at what needs to be documented? ------------------------------------------------------------------------ [2011-11-30 13:24:03] alain dot laporte12345 at gmail dot com Description: ------------ --- From manual page: http://www.php.net/function.json-encode#refsect1-function.json- encode-notes --- The behavior about conversion in object when an array have no consecutive keys is not clear in the documentation. We must use array_values() function to reinitialize keys, before to call json_encode(). This behavior should be explicited in the "notes" section. ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=60418&edit=1