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<?php echo json_encode(array("dog")); echo json_encode(array("dog","cat")); echo json_encode(array_values(array(4=>"cat",3=>"dog",9=>"fish")));
Output for 5.2.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
["dog"]["dog","cat"]["cat","dog","fish"]
Output for 5.0.0 - 5.1.6
Fatal error: Call to undefined function json_encode() in /in/22BHU on line 3
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: json_encode() in /in/22BHU on line 3
Process exited with code 255.
Output for 4.3.2 - 4.4.4
Fatal error: Call to undefined function: json_encode() in /in/22BHU on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: json_encode() in /in/22BHU on line 3