3v4l.org

run code in 300+ PHP versions simultaneously
<?php //Source: https://bugs.php.net/bug.php?id=63898 $array = array("key" => "黄琪玉"); print_r($array); $json = json_encode($array); echo $json."\n"; print_r(json_decode($json));
Output for 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.10, 7.2.0 - 7.2.33, 7.3.12 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Array ( [key] => 黄琪玉 ) {"key":"\u9ec4\u742a\u7389"} stdClass Object ( [key] => 黄琪玉 )
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6
Array ( [key] => 黄琪玉 ) Fatal error: Call to undefined function json_encode() in /in/n0uGR on line 8
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Array ( [key] => 黄琪玉 ) Fatal error: Call to undefined function: json_encode() in /in/n0uGR on line 8
Process exited with code 255.
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.4
Array ( [key] => 黄琪玉 ) Fatal error: Call to undefined function: json_encode() in /in/n0uGR on line 8
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Array ( [key] => 黄琪玉 ) Fatal error: Call to undefined function: json_encode() in /in/n0uGR on line 8

preferences:
268.3 ms | 401 KiB | 357 Q