Question

我正在尝试将数组转换为 JSON格式！

[
    [
        ["SNO",1],
        ["chartType","pie"],
        ["outputValues","rural_total_m,urban_total_m"],
        ["attributeId",10025],
        ["level","india"]
    ],
    [
        ["SNO",2],
        ["chartType","column"],
        ["outputValues","total_m"],
        ["attributeId",10025],
        ["level","state"]
    ]
]

我有一个数组，因为 sql查询和php的 print_r（）函数将其打印为 -

Array
(
    [0] => Array
        (
            [SNO] => 1
            [chartType] => pie
            [outputValues] => rural_total_m,urban_total_m
            [attributeId] => 10025
            [level] => india
        )
    [1] => Array
        (
            [SNO] => 2
            [chartType] => column
            [outputValues] => total_m
            [attributeId] => 10025
            [level] => state
        )
)

我如何获得上述格式？谢谢！

Answer 1

<强>更新

如果你想要这样的东西

[
    [
        ["SNO",1],
        ["chartType","pie"],
        ["outputValues","rural_total_m,urban_total_m"],
        ["attributeId",10025],
        ["level","india"]
    ],[
        ["SNO",2],
        ["chartType","column"],
        ["outputValues","total_m"],
        ["attributeId",10025],
        ["level","state"]
    ]
]

然后使用此代码

让mock数组为$ result

$result = array(
                 array(
                    "SNO" => 1,
                    "chartType" => "pie",
                    "outputValues" => "rural_total_m,urban_total_m",
                    "attributeId" => 10025,
                    "level" => "india"
                ),
                 array(
                    "SNO" => 2,
                    "chartType" => "column",
                    "outputValues" => "total_m",
                    "attributeId" => 10025,
                    "level" => "state"
                ) 
        );

$return_array = array();


foreach ($result as $value) {
    $temp_array = array();

    foreach ($value as $key => $value) {
        $temp_array[] = array($key,$value);
    }
    $return_array[] = $temp_array;


}

echo json_encode($return_array);

否则，如果您希望输出就像这样

[

    ["SNO",1],
    ["chartType","pie"],
    ["outputValues","rural_total_m,urban_total_m"],
    ["attributeId",10025],
    ["level","india"]
    ["SNO",2],
    ["chartType","column"],
    ["outputValues","total_m"],
    ["attributeId",10025],
    ["level","state"]

]

然后使用这个

$ return_array = array（）;

foreach ($result as $value) {

    foreach ($value as $key => $value) {
        $return_array[] = array($key,$value);
    }

}

---------------------------------更新前--------- -------------------------------------------

不是最有效的解决方案，但会做到这一点!!

$array = array(7,4,2,8,4,1,9,3,2,16,7,12); $alpha = 'a'; $retur_array = array(); foreach ($array as $value) { $retur_array[] = array($alpha++ , $value); } json_encode($retur_array);

输出

[ ["a",7], ["b",4], ["c",2], ["d",8], ["e",4], ["f",1], ["g",9], ["h",3], ["i",2], ["j",16], ["k",7], ["l",12] ]

Answer 2

Yuor输入数组将数字作为键。您需要循环并将键更改为子数组中的值。

$new_array = array();
foreach ($array as $key => $val) {
    $new_array[] = array("$key", $val);
}
echo json_encode($new_array);

将JSON转换为方括号格式（JSON结构）

2 个答案: