PHP somo la 61: jinsi ya kufanya loop kwenye class kw akutumia foreach loop

Katika somo hili utakwenda kujifunza concept ya iteration kwenye PHP OOP hapa tutakwenda kuiona jinsi inavyofanya kazi pamoja na foreach loop

Iteration  ni uwezo wa kuifanya value yeyote iweze kufanyiwa loop kw akutumia foreach(), 

 

<?php

function printIterable( $myIterable) {

   foreach($myIterable as $item) {

       echo $item;

   }

}

 

$arr = ["a", "b", "c"];

printIterable($arr);

?>

 

 Code hizo hapo juu pia zinaweza kuandikwa katika mtindo huu

<?php

function getIterable() {

   return ["a", "b", "c"];

}

 

$myIterable = getIterable();

foreach($myIterable as $item) {

   echo $item;

}

?>

 

Sasa ngoja tuone kwenye class

Mfano
<?php

class IterableCollection {
    private $items;

    public function __construct() {
        $this->items = ["a", "b", "c"];
    }

    public function getItems() {
        return $this->items;
    }
}

$iterableCollection = new IterableCollection();
$items = $iterableCollection->getItems();

foreach($items as $item) {
    echo $item;
}

?>

 

Mfano mwingine:

Katika mfano huu utajifunza jinsi ya kukokotia factorial of number. 

<?php

 

class FactorialCalculator {

    private $number;

 

    public function __construct($number) {

        $this->number = $number;

    }

 

    public function calculate() {

        $result = 1;

        $numbers = range(1, $this->number);

        

        foreach($numbers as $num) {

            $result *= $num;

        }

        

        return $result;

    }

}

 

//">...

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