3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $str = array('hello' => 'json' . pack("H*" ,'c32e') ); // var_dump(json_encode($str)); // $str['test'] = htmlentities( (string) $str['test'], ENT_QUOTES, 'utf-8', FALSE); // $str['hello'] = iconv('UTF-8', 'UTF-8//IGNORE', $str['hello']); $str['hello'] = utf8_encode( $str['hello'] ); var_dump(json_encode($str));
based on Mrtpt
Output for 5.2.0 - 5.6.30, hhvm-3.10.1 - 3.17.3, 7.0.0 - 7.2.0
string(23) "{"hello":"json\u00c3."}"
Output for 5.0.0 - 5.1.6
Fatal error: Call to undefined function json_encode() in /in/OjkAe on line 12
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: json_encode() in /in/OjkAe on line 12
Process exited with code 255.
Output for 4.3.2 - 4.4.4
Fatal error: Call to undefined function: json_encode() in /in/OjkAe on line 12
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: json_encode() in /in/OjkAe on line 12