Answer Constructor: A constructor is defined as a block of code that automatically executes at the time of object instantiation. Constructors can accept parameters, call class methods or  other functions.PHP recognizes constructor by the  name__construct.  The general  Syntax→
        function__construct([argument1,argument2,….,argumentN]){ 
            //Class initialization code  
        } 
Destructor:  We can use destructors to modify the object destruction process.Derstructors are  created like any other method but must be titled    __destruct().   Syntax→     
function__destruct(). 
:  html_entity_decode(): Passing null to parameter #1 ($string) of type string is deprecated in