Online PHP editor | output for I1vGA

Output for 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 - 7.1.20, 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: {"NewAccount":"{\"id\":\"12334567755\",\"Type\":\"0\",\"Name\":\"test\",\"Contact\":\"Test Contact\",\"Email\":\"test@testing.comm\",\"Phone\":\"12345678\",\"Cellular\":\"12345678\",\"Address\":\"\\u05d4\\u05e8\\u05d7\\u05d5\\u05d1 \\u05e9\\u05dc\\u05d9 23\",\"City\":\"\\u05ea\\u05dc \\u05d0\\u05d1\\u05d9\\u05d1\",\"Zip\":\"11233\",\"Comments\":\"\\u05d4\\u05e2\\u05e8\\u05d5\\u05ea \\u05d9\\u05ea\\u05e7\\u05d1\\u05dc\\u05d5 \\u05d1\\u05d1\\u05e8\\u05db\\u05d4\"}"}
Output for 5.2.0 - 5.2.17: Notice: Use of undefined constant JSON_FORCE_OBJECT - assumed 'JSON_FORCE_OBJECT' in /in/I1vGA on line 21 Warning: json_encode() expects exactly 1 parameter, 2 given in /in/I1vGA on line 21 {"NewAccount":null}
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6: Fatal error: Call to undefined function json_encode() in /in/I1vGA on line 21
Process exited with code 255.
Output for 4.4.5 - 4.4.9: Fatal error: Call to undefined function: json_encode() in /in/I1vGA on line 21
Process exited with code 255.
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.4: Fatal error: Call to undefined function: json_encode() in /in/I1vGA on line 21
Process exited with code 255.
Output for 4.3.0 - 4.3.1: Fatal error: Call to undefined function: json_encode() in /in/I1vGA on line 21