JSON在php中的使用_PHP教程

<span>$arr</span> = <span>array</span> ('a'=>'a','b'=>'b','c'='c','d'=>'d','e'='e'<span>);
</span><span>echo</span> json_encode(<span>$arr</span>);

<span>class</span><span> person
{
    </span><span>public</span> <span>$name</span><span>;
    </span><span>public</span> <span>$age</span><span>;
    </span><span>public</span> <span>$height</span><span>;
    </span><span>function</span> __construct(<span>$name</span>,<span>$age</span>,<span>$height</span><span>)
    {
        </span><span>$this</span>->name = <span>$name</span><span>;
        </span><span>$this</span>->age = <span>$age</span><span>;
        </span><span>$this</span>->height = <span>$height</span><span>;    
    }   
}

</span><span>$obj</span> = <span>new</span> person("zhangsan",20,100<span>);
</span><span>$foo_json</span> = json_encode(<span>$obj</span><span>);
</span><span>echo</span> <span>$foo_json</span>;

<span>$json</span> = '{"a":"hello","b":"world","c":"zhangsan","d":20,"e":170}'<span>;
</span><span>var_dump</span>(json_decode(<span>$json</span>));

<span>$json</span> = '{"a":"hello","b":"world","c":"zhangsan","d":20,"e":170}'<span>;
</span><span>var_dump</span>(json_decode(<span>$json</span>,ture));