How to Check That an Object Is Empty in PHP

How to check empty object array?

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';
}
?>

How to check if stdClass object is empty or not in php?

Cast to an array first

$tmp = (array) $object;
var_dump(empty($tmp));

The reason is, that an object is an object and there is no useful definition of "an empty object", because there are enough classes out there, that only contains methods, but no properties. Should they considered as "empty"?

Check if object is empty or has values

You should be using OR, not AND to combine the conditions. And count() can never return less than 0; if the object has no properties, the count will be 0.

if(!is_object($user) || count(get_object_vars($user)) == 0) {
    $this->client->addClient(array("login" => $user_data[0]->username, "password" => $password));
}

How to check if JSON object is empty in PHP?

How many objects are you unserializing? Unless empty(get_object_vars($object)) or casting to array proves to be a major slowdown/bottleneck, I wouldn't worry about it – Greg's solution is just fine.

I'd suggest using the the $associative flag when decoding the JSON data, though:

json_decode($data, true)

This decodes JSON objects as plain old PHP arrays instead of as stdClass objects. Then you can check for empty objects using empty() and create objects of a user-defined class instead of using stdClass, which is probably a good idea in the long run.

test object is null in php

Use the function is_null() as follows :

is_null($listcontact);

The Return Value is :

Returns TRUE if var is null, FALSE otherwise.

EDIT

Also you can use this :

  if ( !$YOUR_OBJECT->count() ){
        //null
  }

For more information see those answers

Try using array_filter()

$EmptyArray= array_filter($listcontact);

if (!empty($EmptyArray)){

}
else{
    //nothing there
}

Is it right to use empty() function for checking an object is null?

php has the function is_null() to determine whether an object is null or not: http://php.net/manual/en/function.is-null.php

Check if any property in a object is empty

You can iterate over $this and throw your exception on first empty property found:

public function __construct()
{
    $this->api_url = env('SUPRE_API');
    $this->token = env('SUPRE_TOKEN');

    foreach ($this as $key => $value) {
        if ($value == null) {
            throw new \Exception("Could not find {$key} value. Are you sure it has been set?");
        }
    }
}