3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $a = json_encode('wrong json'); /*if ('50500' <= PHP_VERSION_ID) { var_dump(json_last_error_msg()); }*/ switch (json_last_error()) { case JSON_ERROR_DEPTH: $error = 'Maximum stack depth exceeded'; break; case JSON_ERROR_STATE_MISMATCH: $error = 'Underflow or the modes mismatch'; break; case JSON_ERROR_CTRL_CHAR: $error = 'Unexpected control character found'; break; case JSON_ERROR_SYNTAX: $error = 'Syntax error, malformed JSON'; break; case JSON_ERROR_UTF8: $error = 'Malformed UTF-8 characters, possibly incorrectly encoded'; break; default: $error = 'Unknown error'; break; } var_dump($error);
based on vDss3
Output for 5.3.3 - 7.2.0
string(13) "Unknown error"
Output for 5.3.0 - 5.3.2
Notice: Use of undefined constant JSON_ERROR_UTF8 - assumed 'JSON_ERROR_UTF8' in /in/AJ2rp on line 22 string(56) "Malformed UTF-8 characters, possibly incorrectly encoded"
Output for 5.2.0 - 5.2.17
Fatal error: Call to undefined function json_last_error() in /in/AJ2rp on line 9
Process exited with code 255.
Output for 5.0.0 - 5.1.6
Fatal error: Call to undefined function json_encode() in /in/AJ2rp on line 3
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: json_encode() in /in/AJ2rp on line 3
Process exited with code 255.
Output for 4.3.2 - 4.4.4
Fatal error: Call to undefined function: json_encode() in /in/AJ2rp on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: json_encode() in /in/AJ2rp on line 3