将JSON属性转换为int php

i have this code in javascript:

我在javascript中有这个代码：

var oRows= [];
 for(var i = 0 ; i < 3 ; i ++) {
 var oItem = {name: "example", id: i};
 oRows.push(oItem);
}
 $.ajax({
   url: '/savejson.php',
   method: 'post',
   data: { 'oRows': oRows }
 }).done(function (data) {
     console.log(data);
 });

and code in the php:

和PHP中的代码：

<?php
        $fp = fopen('/data/DecisionTableRows.json', 'w');
        fwrite($fp, json_encode($_POST['oRows']));
        fclose($fp);
?>

but in the JSON file /data/DecisionTableRows.json i still get the property Id as string, how i can write it as int?

但是在JSON文件/data/DecisionTableRows.json中，我仍然将属性Id作为字符串，我怎么能把它写成int？

1 个解决方案

#1

The problem is that $_POST variables are always strings.

问题是$ _POST变量总是字符串。

To avoid the headache of manually doing an is_numeric and casting on each one of them in PHP you can do this:

为了避免手动执行is_numeric并在PHP中对每一个进行强制转换，您可以这样做：

var oRows= [];
 for(var i = 0 ; i < 3 ; i ++) {
 var oItem = {name: "example", id: i};
 oRows.push(oItem);
}
 $.ajax({
   url: '/savejson.php',
   method: 'post',
   data: { 'oRows': JSON.stringify(oRows) }
 }).done(function (data) {
     console.log(data);
 });

and in PHP

在PHP中

<?php
        $fp = fopen('/data/DecisionTableRows.json', 'w');
        fwrite($fp, $_POST['oRows']);
        fclose($fp);
?>

This way you shift the responsibility of encoding to JSON over to JavaScript which does have the original data to work with.

通过这种方式，您可以将编码的责任转移到JSON，而JavaScript则可以使用原始数据。

#1