php对象转化为数组

stdClass Object
(
[name] => zhangsan
[age] => 25
[sex] => 1
[innerobj] => stdClass Object
(
[name] => wangwu
[age] => 24
)

)

print_r((array) $obj);

Array
(
[name] => zhangsan
[age] => 25
[sex] => 1
[innerobj] => stdClass Object
(
[name] => wangwu
[age] => 24
)

)

function obj2arr($obj){
$arr = array();
foreach($obj as $k => $v){
if(!is_object($v)){
$arr[$k] = $v;
}else{
$arr[$k] = obj2arr($v);
}
}
return $arr;
}

print_r(obj2arr($obj));

Array
(
[name] => zhangsan
[age] => 25
[sex] => 1
[innerobj] => Array
(
[name] => wangwu
[age] => 24
)

)

print_r(json_decode(json_encode($obj),true));

Array
(
[name] => zhangsan
[age] => 25
[sex] => 1
[innerobj] => Array
(
[name] => wangwu
[age] => 24
)

)