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run code in 150+ php & hhvm versions
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<?php $x = json_decode('{"asd": {}}', true); $x = json_encode($x); $x = json_decode($x, true); print_r($x); ?>
Output for 5.2.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
Array ( [asd] => Array ( ) )
Output for 5.0.0 - 5.1.6
Fatal error: Call to undefined function json_decode() in /in/h7FtK on line 3
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: json_decode() in /in/h7FtK on line 3
Process exited with code 255.
Output for 4.3.2 - 4.4.4
Fatal error: Call to undefined function: json_decode() in /in/h7FtK on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: json_decode() in /in/h7FtK on line 3