php中json_encode要求文件以utf-8编码

Question

这是$.ajax传给php的json串

  [
        {
            "user": {
                "user1": "user1"
            },
            "tab": {
                "表名": "表名"
            },
            "col": {
                "列名": "列名"
            },
            "isdmptab": "0",
            "lderrset": "stopld"
        },
        {
            "user": {
                "user1": "user1"
            },
            "tab": {
                "表名": "表名"
            },
            "col": {
                "列名": "列名"
            },
            "isdmptab": "0",
            "lderrset": "stopld"
        },
        {
            "user": {
                "user1": "user1"
            },
            "tab": {
                "表名": "表名"
            },
            "col": {
                "列名": "列名"
            },
            "isdmptab": "0",
            "lderrset": "stopld"
        },
        {
            "user": {
                "user1": "user1"
            },
            "tab": {
                "表名": "表名"
            },
            "col": {
                "列名": "列名"
            },
            "isdmptab": "0",
            "lderrset": "stopld"
        },
        {
            "user": {
                "user2": "user2"
            },
            "tab": {
                "表名": "表名"
            },
            "col": {
                "列名": "列名"
            },
            "isdmptab": "0",
            "lderrset": "stopld"
        }
    ]


这是php部分$_POST['tabmap']的输出
中文部分 结果不对

Array
(
    [0] => Array
        (
            [user] => Array
                (
                    [user1] => user1
                )

            [tab] => Array
                (
                    [0] => 表名
                )

            [col] => Array
                (
                    [0] => 列名
                )

            [isdmptab] => 0
            [lderrset] => stopld
        )

    [1] => Array
        (
            [user] => Array
                (
                    [user1] => user1
                )

            [tab] => Array
                (
                    [0] => 表名
                )

            [col] => Array
                (
                    [0] => 列名
                )

            [isdmptab] => 0
            [lderrset] => stopld
        )

    [2] => Array
        (
            [user] => Array
                (
                    [user1] => user1
                )

            [tab] => Array
                (
                    [0] => 表名
                )

            [col] => Array
                (
                    [0] => 列名
                )

            [isdmptab] => 0
            [lderrset] => stopld
        )

    [3] => Array
        (
            [user] => Array
                (
                    [user1] => user1
                )

            [tab] => Array
                (
                    [0] => 表名
                )

            [col] => Array
                (
                    [0] => 列名
                )

            [isdmptab] => 0
            [lderrset] => stopld
        )

    [4] => Array
        (
            [user] => Array
                (
                    [user2] => user2
                )

            [tab] => Array
                (
                    [0] => 表名
                )

            [col] => Array
                (
                    [0] => 列名
                )

            [isdmptab] => 0
            [lderrset] => stopld
        )

)

Answer 1

json_decode只支持utf-8,看看你的代码文件的编码是否正确。

Answer 2

可以的啊！测试code如下：

$tmp = '{
        "user": {
            "user1": "user1"
        },
        "tab": {
            "表名": "表名"
        },
        "col": {
            "列名": "列名"
        },
        "isdmptab": "0",
        "lderrset": "stopld"
}';

print_r(json_decode($tmp, true));

结果如图

Answer 3

必须支持，但是PHP获取到的json如果想转换成数组必须json_decode($tmp, true)，注意第二个参数是true，不然转换成的就是object，是对象。

Answer 4

楼主，这样看来明显是你的运行环境有问题，看看我的运行结果
https://www.bytelang.com/o/s/...

Answer 5

楼上+1，代码没问题，题主输出其他内容试试

echo 'superman'

Answer 6

5.4也是没问题的，猜测编码问题，json_decode只支持utf-8编码,用iconv或mb_convert_encoding转换下

Answer 7

json_decode函数只能解码UTF-8编码的字符串，官方文档中这样描述的：

json
    The json string being decoded.

    This function only works with UTF-8 encoded strings.

在遇到json_encode后无法获取结果的情况时，使用json_last_error函数可以输出出错的原因：

switch (json_last_error()) {
    case JSON_ERROR_NONE:
        echo ' - No errors';
    break;
    case JSON_ERROR_DEPTH:
        echo ' - Maximum stack depth exceeded';
    break;
    case JSON_ERROR_STATE_MISMATCH:
        echo ' - Underflow or the modes mismatch';
    break;
    case JSON_ERROR_CTRL_CHAR:
        echo ' - Unexpected control character found';
    break;
    case JSON_ERROR_SYNTAX:
        echo ' - Syntax error, malformed JSON';
    break;
    case JSON_ERROR_UTF8:
        echo ' - Malformed UTF-8 characters, possibly incorrectly encoded';
    break;
    default:
        echo ' - Unknown error';
    break;
}