QUIZGUM

Coding Class

Quizgum : trait insteadof

Determine the name to use instead of the trait's methods

If you have two traits and two traits have a method with the same name, you can specify which one to use.
The keyword insteadof to specify which method to use.

How To Use insteadof

  1. trait trait name{}
  2. class class name
  3. {
  4.     use trait name, trait name {
  5.         The name of the trait to use :: method name insteadof the name of the trait to disable;
  6.     }
  7. }

So let's look at an example..

  1. <?php
  2.     trait apple
  3.     {
  4.         public function phone()
  5.         {
  6.             return 'iPhone';
  7.         }
  8.     }
  9.  
  10.     trait samsung
  11.     {
  12.         public function phone()
  13.         {
  14.             return 'galaxy';
  15.         }
  16.     }
  17.  
  18.     class disneyAnimation
  19.     {
  20.         use apple, samsung {
  21.             apple::phone insteadof samsung;
  22.         }
  23.     }
  24.  
  25.     $disney = new disneyAnimation;
  26.     echo "Judith in zootopia ".$disney->phone()." Use it." ;
  27. ?>

If you have 3 traits, instead of, write the name of the trait you don't want to use.

insteadof multiple usage

  1. trait trait name{}
  2. class class name
  3. {
  4.     use trait name, trait name {
  5.         Use trade name ::method name insteadof not be used trade name, not be used trade name;
  6.     }
  7. }

Try insteadof in multiples with the following example:

  1. <?php
  2.     trait apple
  3.     {
  4.         public function phone()
  5.         {
  6.             return 'iPhone';
  7.         }
  8.     }
  9.  
  10.     trait samsung
  11.     {
  12.         public function phone()
  13.         {
  14.             return 'galaxy';
  15.         }
  16.     }
  17.  
  18.     trait lg
  19.     {
  20.         public function phone()
  21.         {
  22.             return 'g';
  23.         }
  24.     }
  25.  
  26.     class disneyAnimation
  27.     {
  28.         use apple, samsung, lg {
  29.             apple::phone insteadof samsung, lg;
  30.         }
  31.     }
  32.  
  33.     $disney = new disneyAnimation;
  34.     echo "Judith in zootopia ".$disney->phone()." Use it.";
  35. ?>

What if you also need to use the phone() method from another trait?
Next time, we'll learn how to use the methods of the same name in different traits.