Viungo vya Arrays katika PHP

Katika PHP, tofauti na lugha zingine za programu, arrays pia hunakiliwa, wala hapitiwi kwa kumbukumbu.

Hebu tuhakikishe hili:

php<?php
  $arr1 = [1, 2, 3, 4, 5];
  $arr2 = $arr1;
  $arr2[0] = '!';
  
  var_dump($arr1); // haitabadilika
?>

Sasa tulazimishe array ipitiswe kwa kumbukumbu:

php<?php
  $arr1 = [1, 2, 3, 4, 5];
  $arr2 = &$arr1;
  $arr2[0] = '!';
  
  var_dump($arr1); // itabadilika
?>

Задание 1

Eleza, matokeo ya utekelezaji wa msimbo yatakuwa nini:

php<?php
  $arr1 = [1, 2, 3, 4, 5];
  
  $arr2 = $arr1;
  $arr2[0] = '!';
  
  echo $arr1[0];
  echo $arr2[0];
?>

Задание 2

Eleza, matokeo ya utekelezaji wa msimbo yatakuwa nini:

php<?php
  $arr1 = [1, 2, 3, 4, 5];
  
  $arr2 = &$arr1;
  $arr1[0]++;
  
  echo $arr1[0];
  echo $arr2[0];
?>

Задание 3

Eleza, matokeo ya utekelezaji wa msimbo yatakuwa nini:

php<?php
  $arr1 = [1, 2, 3, 4, 5];
  
  $arr2 = &$arr1;
  
  $arr1[0]++;
  $arr2[0]++;
  
  echo $arr1[0];
  echo $arr2[0];
?>