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run code in 150+ php & hhvm versions
Bugs & Features
<?php echo json_encode(array(1=>2,3=>'4'),JSON_NUMERIC_CHECK); echo json_encode(array(1=>2,3=>'4'));
Output for 5.3.3 - 7.1.0
{"1":2,"3":4}{"1":2,"3":"4"}
Output for 5.3.0 - 5.3.2
Notice: Use of undefined constant JSON_NUMERIC_CHECK - assumed 'JSON_NUMERIC_CHECK' in /in/BNHC9 on line 2 Warning: json_encode() expects parameter 2 to be long, string given in /in/BNHC9 on line 2 {"1":2,"3":"4"}
Output for 5.2.0 - 5.2.17
Notice: Use of undefined constant JSON_NUMERIC_CHECK - assumed 'JSON_NUMERIC_CHECK' in /in/BNHC9 on line 2 Warning: json_encode() expects exactly 1 parameter, 2 given in /in/BNHC9 on line 2 {"1":2,"3":"4"}
Output for 5.0.0 - 5.1.6
Fatal error: Call to undefined function json_encode() in /in/BNHC9 on line 2
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: json_encode() in /in/BNHC9 on line 2
Process exited with code 255.
Output for 4.3.2 - 4.4.4
Fatal error: Call to undefined function: json_encode() in /in/BNHC9 on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: json_encode() in /in/BNHC9 on line 2