PHP是怎么返回json格式的数据

php 输出JSON格式,使用json_encode函数即可

例如:

header('Content-type: text/json');

$fruits=array(

"fruits"=>array("a"=>"orange","b"=>"banana","c"=>"apple"),

"numbers"=>array(1, 2, 3, 4, 5, 6),

"holes"=>array("first", 5 =>"second","third")

);

echojson_encode($fruits);

?>

得到结果:

{"fruits":{"a":"orange","b":"banana","c":"apple"},"numbers":[1,2,3,4,5,6],"holes":{"0":"first","5":"second","6":"third"}}