Using The Class Construct Method In Php 
//The difference between normal class methods and construct class methods//
 
 class exampleOne
 {
  function sayHello()
  {
 echo 'Hello !';
  }//end function
 }//end class
 //now to execute our class
 $ourexample = new exampleOne;
 $ourexample->sayHello();
 
 class exampleTwo
 {
  public function __construct()
  {
   $this->sayHowdy();
  }//end function construct
  
  public function sayHowdy()
  {
  echo 'Howdy !';
  }//end function
 }//end class
 // now we can call and execute the class using only one line below//
 $example = new exampleTwo;