json_encode()
该函数主要用来将数组和对象，转换为json格式。
代码如下:
$arr = array ('a'=>'a','b'=>'b','c'='c','d'=>'d','e'='e');
echo json_encode($arr);
echo json_encode($arr);
输出结果：
30183.png?201442514219">
代码如下:
class person
{
public $name;
public $age;
public $height;
function __construct($name,$age,$height)
{
$this->name = $name;
$this->age = $age;
$this->height = $height;
}
}
{
public $name;
public $age;
public $height;
function __construct($name,$age,$height)
{
$this->name = $name;
$this->age = $age;
$this->height = $height;
}
}
$obj = new person("zhangsan",20,100);
$foo_json = json_encode($obj);
echo $foo_json;
输出结果：
json_decode()
代码如下:
$json = '{"a":"hello","b":"world","c":"zhangsan","d":20,"e":170}';
var_dump(json_decode($json));
var_dump(json_decode($json));
输出结果：
通常情况下，json_decode()总是返回一个PHP对象。
转成数组的：
代码如下:
$json = '{"a":"hello","e":170}';
var_dump(json_decode($json,ture));
var_dump(json_decode($json,ture));
