重新格式化json

Question

我有这个php代码，因为我试图在我的php项目中执行一个特定的函数，我编码实现正确，但我遇到了一个小问题。

<?php echo '<script type="text/javascript">';
$data = array(
'base' => 'USD',
'alter' => 'ETH',
'data' => array()
);
foreach ($cryptos as $row) {
$sy = $row["symbol"];
$data['data'][] = array(
"$sy"  => [
"rate" => 1.552000000000000,
"min" => 1.0077600000000000,
"max" => 10.077600000000000,
"code" => $row["symbol"],
"dp" => 8
],
);
}
print_r("var fxCur = " . json_encode($data));

运行上面的代码，我得到了下面的结果，这是预期的结果，但我想在data

之间省略[]

{
"base":"USD",
"alter":"ETH",
"data":[
{
"BTC":{
"rate": 1.552000000000000,
"min": 1.0077600000000000,
"max": 10.077600000000000,
"code":"BTC",
"dp":8
}
},
{
"ETH":{
"rate": 1.552000000000000,
"min": 1.0077600000000000,
"max": 10.077600000000000,
"code":"ETH",
"dp":8
}
}
]
}

但实际上我想要这个结果

{
"base":"USD",
"alter":"ETH",
"data":{
"BTC":{
"rate": 1.552000000000000,
"min": 1.0077600000000000,
"max": 10.077600000000000,
"code":"BTC",
"dp":8
},
"ETH":{
"rate": 1.552000000000000,
"min": 1.0077600000000000,
"max": 10.077600000000000,
"code":"ETH",
"dp":8
},

}
}

Answer 1

你告诉它以这种方式构造数据结构。

$data['data'][] = array(
"$sy"  => [
...
]
);

这行表示"在$data['data']的下一个整数索引处添加一个元素，并将其设置为与数组相等，例如[ "BTC" => [ ... ]]

我认为你想要的是:

$data['data'][$sy] = [
"rate" => 1.552000000000000,
"min" => 1.0077600000000000,
"max" => 10.077600000000000,
"code" => $row["symbol"],
"dp" => 8
];