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run code in 150+ php & hhvm versions
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<?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)%3; print_r( json_decode('[{"item_id": 21,"title": "可口可乐600ml"}]',true)); print_r( json_decode('{"item_id": 21,"title": "可口可乐600ml"}',true)); print_r(array_flip(array_flip(array(1,2,3))));
Output for 5.2.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
{"a":"PHP","b":"\u4e2d\u56fd"}{"a":"PHP","b":"中国"}0Array ( [0] => Array ( [item_id] => 21 [title] => 可口可乐600ml ) ) Array ( [item_id] => 21 [title] => 可口可乐600ml ) Array ( [0] => 1 [1] => 2 [2] => 3 )
Output for 5.0.0 - 5.1.6
Fatal error: Call to undefined function json_encode() in /in/n0ILF 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/n0ILF on line 4
Process exited with code 255.
Output for 4.3.2 - 4.4.4
Fatal error: Call to undefined function: json_encode() in /in/n0ILF 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/n0ILF on line 4