Traits in PHP

 

One of the major problem is PHP is a single inheritace language. But in real life we might face a case where we need to use multiple behaviour in a class. Or we might thinking how can we apply multiple inhertence. To solve this problem php introduce traits.

Let's discuss this by giving an example:

using normal inheritance:

<?php
class Car {

  public function lambo() {
    echo "This is lambo car!";

    echo "<br>";
  }
}

class Car1 extends Car {

  public function ferari() {
    echo "This is ferari car!";

    echo "<br>";
  }
}

// inherited from Car and only single inheritance occured
class Car2 extends Car1 {
  public function audi() {
    echo "This is audi car!";
  }
}
$car = new Car2;
$car -> lambo();

$car -> ferari();
$car -> audi();
?>

using traits:

<?php
trait Car {

  public function lambo() {
    echo "This is lambo car!";

    echo "<br>";
  }
}

trait Car1 {

  public function ferari() {
    echo "This is ferari car!";

    echo "<br>";
  }
}

// multiple behaviour or multiple inheritance occured

class Car2 {

    use Car, Car1; // using multiple traits
  public function audi() {
    echo "This is audi car!";
  }
}
$car = new Car2;
$car -> lambo();

$car -> ferari();
$car -> audi();
?>