Bug #72069 [NEW]: Behavior \JsonSerializable different from json_encode

From: dpetrov at dev dot football dot com Operating system: centos 7 PHP version: 7.0.5 Package: JSON related Bug Type: Bug Bug description:Behavior \JsonSerializable different from json_encode Description: ------------ Behavior \JsonSerializable different from json_encode if contains json_decode(null, true) in PHP 7. Test script: --------------- https://3v4l.org/UraSC <?php $result = json_encode(['end' => json_decode(null, true)]); var_dump($result); class A implements \JsonSerializable { function jsonSerialize() { return ['end' => json_decode(null, true)]; } } $a = new A(); $toJsonData = $a->jsonSerialize(); $result = json_encode($a); var_dump($result); $result = json_encode($toJsonData); var_dump($result); -- Edit bug report at https://bugs.php.net/bug.php?id=72069&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=72069&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=72069&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=72069&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=72069&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=72069&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=72069&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=72069&r=needscript Try newer version: https://bugs.php.net/fix.php?id=72069&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=72069&r=support Expected behavior: https://bugs.php.net/fix.php?id=72069&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=72069&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=72069&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=72069&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=72069&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=72069&r=dst IIS Stability: https://bugs.php.net/fix.php?id=72069&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=72069&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=72069&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=72069&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=72069&r=mysqlcfg