Online PHP editor | output for F4J3S

Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6: Fatal error: Uncaught Error: Undefined constant "JSON" in /in/F4J3S:3 Stack trace: #0 {main} thrown in /in/F4J3S on line 3
Process exited with code 255.
Output for 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33: Warning: Use of undefined constant JSON - assumed 'JSON' (this will throw an Error in a future version of PHP) in /in/F4J3S on line 3 Fatal error: Uncaught Error: Call to undefined function parse() in /in/F4J3S:3 Stack trace: #0 {main} thrown in /in/F4J3S on line 3
Process exited with code 255.
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.25: Notice: Use of undefined constant JSON - assumed 'JSON' in /in/F4J3S on line 3 Fatal error: Uncaught Error: Call to undefined function parse() in /in/F4J3S:3 Stack trace: #0 {main} thrown in /in/F4J3S on line 3
Process exited with code 255.
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 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: Notice: Use of undefined constant JSON - assumed 'JSON' in /in/F4J3S on line 3 Fatal error: Call to undefined function parse() in /in/F4J3S on line 3
Process exited with code 255.
Output for 4.4.5 - 4.4.9: Notice: Use of undefined constant JSON - assumed 'JSON' in /in/F4J3S on line 3 Fatal error: Call to undefined function: parse() in /in/F4J3S on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.4: Notice: Use of undefined constant JSON - assumed 'JSON' in /in/F4J3S on line 3 Fatal error: Call to undefined function: parse() in /in/F4J3S on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1: Notice: Use of undefined constant JSON - assumed 'JSON' in /in/F4J3S on line 3 Fatal error: Call to undefined function: parse() in /in/F4J3S on line 3