PHP | is_object() Function

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The is_object() function is an inbuilt function in PHP which is used to check whether the given value is an object or not.

Syntax:

bool is_object( mixed $var )

Parameters: This function accepts single parameter as mentioned above and described below:

$var: It contains the value of variable that need to be check.

Return Value: It returns TRUE if the value of variable is an object, FALSE otherwise.

Program 1:

<?php 
  
// Create a class 
class GFG { 
   
    public $data1;  
    public $data2;  
    public $data3;  
} 
   
// Create an object 
$obj = new GFG(); 
  
// Check the value of variable 
// is an object or not 
if(is_object($obj)) { 
    echo "Object"; 
} 
else { 
    echo "Not Object"; 
} 
?> 

Output:

Object

Program 2:

<?php 
  
// Create a class 
class GFG { 
    public $Geek_name =  
          "Welcome to zambiatek";  
}  
   
// Create the class name alias 
class_alias('GFG', 'zambiatek'); 
  
$obj1 = new GFG(); 
$obj2 = new zambiatek(); 
$obj3 = 'zambiatek'; 
  
var_dump(is_object($obj1)); 
var_dump(is_object($obj2)); 
var_dump(is_object($obj3)); 
  
?> 