JSON 文件中逗号后自动添加换行符？

Question

我有一个从我的 PHP laravel 后端自动生成的 JSON 文件，它只是一个转换为 JSON 格式的数组，问题是我想要一个逐行的 JSON 文件，而不是这些丑陋的序列化数据......

我的 JSON 文件如下所示：

[{"cityName":"Toronto","provinceOrState":"Canada","country":"Canada"},{"cityName":"Montreal","provinceOrState":"Canada","country":"Canada"},{"cityName":"Calgary","provinceOrState":"Canada","country":"Canada"},{"cityName":"Ottawa","provinceOrState":"Canada","country":"Canada"},{"cityName":"Edmonton","provinceOrState":"Canada","country":"Canada"},{"cityName":"Mississauga","provinceOrState":"Canada","country":"Canada"},{"cityName":"North York",

如果你将它粘贴到你的 IDE（我的是 Visual Studio Code）中，你会发现它看起来有多难看，因为它的语法高亮甚至不起作用......

Answer 1

json_encode()有一个JSON_PRETTY_PRINT选项。像这样的东西应该有效：

$json = '[{"cityName":"Toronto","provinceOrState":"Canada","country":"Canada"},{"cityName":"Montreal","provinceOrState":"Canada","country":"Canada"},{"cityName":"Calgary","provinceOrState":"Canada","country":"Canada"},{"cityName":"Ottawa","provinceOrState":"Canada","country":"Canada"},{"cityName":"Edmonton","provinceOrState":"Canada","country":"Canada"},{"cityName":"Mississauga","provinceOrState":"Canada","country":"Canada"}]';

$data = json_decode($json);
$json = json_encode($data, JSON_PRETTY_PRINT);

echo "<pre>$json</pre>";

这会产生如下输出：

[
    {
        "cityName": "Toronto",
        "provinceOrState": "Canada",
        "country": "Canada"
    },
    {
        "cityName": "Montreal",
        "provinceOrState": "Canada",
        "country": "Canada"
    },
    ......
]