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run code in 150+ php & hhvm versions
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<?php $credits = 1; $energy = 2; $fuel = 3; $upgrade = 4; echo json_encode( array( "fuel" => $fuel, "energy" => $energy, "credits" => $credits, "upgrades" => $upgrade ) ); ?>
Output for 5.2.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
{"fuel":3,"energy":2,"credits":1,"upgrades":4}
Output for 5.0.0 - 5.1.6
Fatal error: Call to undefined function json_encode() in /in/OYOWV on line 7
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: json_encode() in /in/OYOWV on line 7
Process exited with code 255.
Output for 4.3.2 - 4.4.4
Fatal error: Call to undefined function: json_encode() in /in/OYOWV on line 7
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: json_encode() in /in/OYOWV on line 7