3v4l.org

run code in 300+ PHP versions simultaneously
<?php /** by www.phpddt.com */ $arr = array("a"=>"PHP","b"=>"中国"); echo json_encode($arr); //中文乱码:["PHP","\u4e2d\u56fd"] //json_encode前对变量urlencode即可 foreach ($arr as $k => $v){ $arr[$k] = urlencode($v); } echo urldecode(json_encode($arr)); //{"a":"PHP","b":"中国"} $str=md5('test');echo hexdec($str);
Output for 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.37, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
{"a":"PHP","b":"\u4e2d\u56fd"}{"a":"PHP","b":"中国"}1.270773689414E+37
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6
Fatal error: Call to undefined function json_encode() in /in/PptGj on line 4
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Fatal error: Call to undefined function: json_encode() in /in/PptGj on line 4
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/PptGj on line 4
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: json_encode() in /in/PptGj on line 4

preferences:
219.96 ms | 401 KiB | 362 Q