如何检查空对象数组？

Question

I got below set of empty object array and when I am using php empty function, below object array bypass the empty function.

stdClass Object
(
)

Please suggest me, how can I identify the blank object array.

Answer 1

Convert the object to associative array using json_encode and json_decode .

$arr = json_decode(json_encode($obj), TRUE);
if (empty($arr)) {
  // Object is empty.
}

json_decode function returns associative array if second parameter is set TRUE (even if object is passed).

Working example:

<?php
$obj = new stdClass();
$arr = json_decode(json_encode($obj), TRUE);
if (empty($arr)) {
  echo 'empty';
}
?>

Answer 2

Cast it to array and check :

$array = (array) $object;

if (empty($array))

or

count($array)

Answer 3

It can be done by

$array = array_filter($array);
if(!empty($array)) {
    echo "not empty";
}