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PHP ReflectionClass isInstance () function

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Syntax:
bool ReflectionClass::isInstance (object $object)
Parameters:This function accepts one objectparameter, which is looked for in the class instance.Return value:this function returns true for success or false on error.The following programs illustrate the ReflectionClass::isInstance() functionin PHP:Program 1:   // Custom class declaration class  GFG {} 
// Instance initialization $Instance = new GFG();  
// Using ReflectionClass over
// GFG instance $obj = new ReflectionClass ( ’GFG’ ) ;  
// Calling the isInstance() function $A = $obj -> isInstance ( $Instance );  
// Get true or false var_dump ( $A ); ?>
Output:
bool (true)
Program 2:  
// Custom class declaration class  GFG {}   // Using ReflectionClass over
// GFG instance $obj = new ReflectionClass ( ’GFG’ );  
// Calling the isInstance() function $A = $obj -> isInstance ( $obj );  
// Get true or false var_dump ( $A ); ?>
Output:
bool (false)
Link: https://secure.php.net/manual/en/reflectionclass.isinstance.php

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