PHP在json字符串中的数字前后添加双引号 [英] PHP Add double quotes before and after numbers in json string

问题描述

我正在尝试在json字符串中的数字上添加双引号.例如:

I'm trying to add double quotes to numbers in a json string. For example:

{"id":1, "result": 288230376201306378}

应该是:

{"id":1, "result": "288230376201306378"}

我该如何实现?我在某处阅读了我应该使用正则表达式的地方.不幸的是，我对此很陌生.

How do I achieve this? I read somewhere that I'm supposed to use regular expressions. Unfortunately, I'm kinda new to that.

此外，如果您能向我指出一些有助于我了解正则表达式的在线资源，我将不胜感激.

Also, I would be very grateful if you could point me to some online resources which would help me understand regex.

谢谢.

推荐答案

{"id":1，结果":288230376201306378}

{"id":1, "result": 288230376201306378}

id也是一个数字，如果您也想修改它，请使用:

The id is also a number, if you want to modify it too, use :

$myJsonString = '{"id":1, "result": 288230376201306378}';

$myNewJsonString = preg_replace('/"([^"]+)":\s*(\d+)/', '"\1": "\2"', $myJsonString);

如果只想修改result，请使用:

If you only want to modify the result use :

$myJsonString = '{"id":1, "result": 288230376201306378}';

$myNewJsonString = preg_replace('/"result"\s*:\s*(\d+)/', '"result": "\1"', $myJsonString);

关于正则表达式的问题，互联网上有很多教程.我个人使用 regex101 实时测试我的正则表达式(还有一个快速参考"，其中总结了主要标记)在正则表达式中使用.)

For your question about regex, there are many tutorials on internet. I personally use regex101 to test my regex in real time (there is also a "quick reference", which summarize the main tokens used in regex).

由于在这种情况下正则表达式不是最佳解决方案，因此您可以将数字转换为字符串，然后再将其添加到数组(string)$myNumber中. json_encode整个数据时，数字将被视为字符串，并且会添加引号.

Since regex are not an optimal solution in this case, you can cast your numbers into string before adding them to your array (string)$myNumber. The numbers will be considered as strings and quotes will be added when you json_encode the whole data.

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