php将数组转化成json字符串 php数组如何转换json字符串

php数组转换json字符串的方法：首先创建一个php示例文件；然后定义一组数组数据；最后通过“json_encode($color)”方法将数组转换成json字符串即可。

PHP中 数组/对象转成JSON字符串

代码如下：<?php

//php语言生成json字符串

//json_encode(数组/对象);

//① 索引数组-->JavaScript数组

$color = array('gold','yellow','blue');

echo json_encode($color)."

";// ["gold","yellow","blue"]

//② 关联数组-->json字符串

$city = array('shandong'=>'jinan','henan'=>'zhengzhou','hebei'=>'shijiazhuang');

echo json_encode($city)."

";//{"shandong":"jinan","henan":"zhengzhou","hebei":"shijiazhuang"}

//③ 索引关联数组-->json字符串

$city2 = array('shandong'=>'jinan','henan'=>'zhengzhou','shenyang','hebei'=>'shijiazhuang');

echo json_encode($city2)."

";//{"shandong":"jinan","henan":"zhengzhou","0":"shenyang","hebei":"shijiazhuang"}

//④ 对象生成json信息-->json字符串

// (只会序列化"成员属性"，不会序列化"成员方法")

class Person{

//类内部的成员属性需要有修饰符(var/public/protected/private)，其是固定语法

public $color = "yellow";

var $height = 170;

function run(){

echo "is running";

}

}

$tom = new Person();

echo json_encode($tom); //{"color":"yellow","height":170}