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。

推荐：《PHP视频教程》

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)."<br />";// ["gold","yellow","blue"]   //② 关联数组-->json字符串 $city = array('shandong'=>'jinan','henan'=>'zhengzhou','hebei'=>'shijiazhuang'); echo json_encode($city)."<br />";//{"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)."<br />";//{"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}