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PHP | is_object() Function

Last Updated : 27 Apr, 2020
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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 
<?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 
<?php

// Create a class
class GFG {
    public $Geek_name = 
          "Welcome to GeeksforGeeks"; 
} 
 
// Create the class name alias
class_alias('GFG', 'GeeksforGeeks');

$obj1 = new GFG();
$obj2 = new GeeksforGeeks();
$obj3 = 'GeeksforGeeks';

var_dump(is_object($obj1));
var_dump(is_object($obj2));
var_dump(is_object($obj3));

?>
Output: 
bool(true) 
bool(true) 
bool(false)
Reference: https://www.php.net/manual/en/function.is-object.php

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