json格式数据解析

  var obj = {
      name:‘zhangsan‘,
      age:18
  }
    var jsonStr = JSON.stringify(obj)
    console.log(jsonStr)        //{"name":"zhangsan","age":18}

var arr=[‘zs‘,‘ls‘,‘ww‘,‘zl‘,‘tq‘]
var jsonStr = JSON.stringify(arr)
console.log(jsonStr)     //["zs","ls","ww","zl","tq"]

var jsonStr = ‘{"name":"zhangsan","age":18}‘;
     console.log(JSON.parse(jsonStr))    //{name: "zhangsan", age: 18}

var jsonStr = ‘["zs","ls","ww","zl","tq"]‘;
     console.log(JSON.parse(jsonStr))    //["zs", "ls", "ww", "zl", "tq"]

<?php
header(‘content-type:text/html;charset=utf-8‘);
$jsonStr = ‘{"name": "zhangsan", "age": 18}‘;
$arr = json_decode($jsonStr,true);
echo ‘<pre>‘;
print_r( $arr );
echo ‘</pre>‘;
?>

<?php
header(‘content-type:text/html;charset=utf-8‘);
$info = [
    "name" => ‘zhangsan‘,
    "age"=> 18
];
$str = json_encode($info);
echo $str;    //{"name":"zhangsan","age":18}
?>