This gist is for PHP traits Example

method-overlap.php

<?php

trait Greetings
{
  public function sayHello()
  {
    return 'Hello Bro'; 
  }
  
  public function goodBye()
  {
    return 'See you, good bye'; 
  }
}


class NewGreetings
{
 use Greetings;
  
  public function sayHello()
  {
    return 'Hello again'; 
  }
}

$greetings = new NewGreetings();

echo $greetings->sayHello(); // Output: Hello again
echo $greetings->goodBye(); // Output: See you, goodbye

multiple-inheritence-complexity.php

<?php
class SumSub
{
  public function sum($a, $b)
  {
    return $a + $b;
  }
  
   public function sub($a, $b)
  {
    return $a - $b;
  }
}

// class for multiplication and division inherit from SubSub class
class MulDiv extends SumSub
{
  public function mul($a, $b)
  {
    return $a * $b;
  }
  
   public function div($a, $b)
  {
    return $a / $b;
  }
}

// calculator class

class Calculator extends MulDiv
{
  public function square($a)
  {
    return $a * $a;
  }
}

trait-syntax.php

<?php
trait Authorizable
{
    // write methods and properties here
}

trait-use-trait.php

<?php
trait Messagable
{
  public function sendMessage($to, $message)
  {
    return $this->send($to, $message);
  }
}

trait GroupMessage
{
  use Messagable;
  
  public function sendMessageToGroup($to, $message)
  {
    return $this->sendGroupMessage($to, $message);
  }
}

traits.php

<?php

trait SumSub
{
  public function sum($a, $b)
  {
    return $a + $b;
  }
  
   public function sub($a, $b)
  {
    return $a - $b;
  }
}


trait MulDiv
{
  public function mul($a, $b)
  {
    return $a * $b;
  }
  
   public function div($a, $b)
  {
    return $a / $b;
  }
}



class Calculator
{
  use SumSub;
  use MulDiv;
  
  public function square($a)
  {
    return $a * $a;
  }
}

uses.php

<?php

$cal = new Calculator;

echo $cal->square(3);
echo $cal->sum(3, 4);

// the following output is 9 and 7