3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php function isJson($string, bool $assoc = false) { var_dump(json_decode($string)); if(is_string($string)) { json_decode($string); return (json_last_error() == JSON_ERROR_NONE); // return json_decode($str) != null; } return false; } $a=['arraiii'=>['dentro'=>234]]; $b=json_encode($a); $c='{hg}'; var_dump(isJson($a));
Output for 7.0.0 - 7.1.0
Warning: json_decode() expects parameter 1 to be string, array given in /in/jNoIq on line 8 NULL bool(false)
Output for hhvm-3.10.0 - 3.12.0
Fatal error: Default value for parameter assoc with a class type hint can only be NULL in /in/jNoIq on line 5
Process exited with code 255.
Output for 5.1.0 - 5.6.28
Fatal error: Default value for parameters with a class type hint can only be NULL in /in/jNoIq on line 5
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[' in /in/jNoIq on line 20
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting '&' or T_VARIABLE or T_CONST in /in/jNoIq on line 5
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected T_STRING, expecting '&' or T_VARIABLE or T_CONST in /in/jNoIq on line 5
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `'&'' or `T_VARIABLE' or `T_CONST' in /in/jNoIq on line 5
Process exited with code 255.