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run code in 150+ php & hhvm versions
Bugs & Features
<?php $dec = json_decode('{"a":"A\u2028B"}'); print_r(json_encode($dec)); print_r(json_encode($dec, JSON_UNESCAPED_UNICODE));
Output for 7.1.0
{"a":"A\u2028B"}{"a":"A\u2028B"}
Output for 5.4.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.0.14
{"a":"A\u2028B"}{"a":"A
B"}
Output for 5.3.0 - 5.3.29
{"a":"A\u2028B"} Notice: Use of undefined constant JSON_UNESCAPED_UNICODE - assumed 'JSON_UNESCAPED_UNICODE' in /in/4K98p on line 5 Warning: json_encode() expects parameter 2 to be long, string given in /in/4K98p on line 5
Output for 5.2.0 - 5.2.17
{"a":"A\u2028B"} Notice: Use of undefined constant JSON_UNESCAPED_UNICODE - assumed 'JSON_UNESCAPED_UNICODE' in /in/4K98p on line 5 Warning: json_encode() expects exactly 1 parameter, 2 given in /in/4K98p on line 5
Output for 5.0.0 - 5.1.6
Fatal error: Call to undefined function json_decode() in /in/4K98p 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/4K98p 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/4K98p 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/4K98p on line 3