Viungo vya Arrays katika PHP
Katika PHP, tofauti na lugha zingine za programu, arrays pia hunakiliwa, wala hapitiwi kwa kumbukumbu.
Hebu tuhakikishe hili:
<?php
$arr1 = [1, 2, 3, 4, 5];
$arr2 = $arr1;
$arr2[0] = '!';
var_dump($arr1); // haitabadilika
?>
Sasa tulazimishe array ipitiswe kwa kumbukumbu:
<?php
$arr1 = [1, 2, 3, 4, 5];
$arr2 = &$arr1;
$arr2[0] = '!';
var_dump($arr1); // itabadilika
?>
Eleza, matokeo ya utekelezaji wa msimbo yatakuwa nini:
<?php
$arr1 = [1, 2, 3, 4, 5];
$arr2 = $arr1;
$arr2[0] = '!';
echo $arr1[0];
echo $arr2[0];
?>
Eleza, matokeo ya utekelezaji wa msimbo yatakuwa nini:
<?php
$arr1 = [1, 2, 3, 4, 5];
$arr2 = &$arr1;
$arr1[0]++;
echo $arr1[0];
echo $arr2[0];
?>
Eleza, matokeo ya utekelezaji wa msimbo yatakuwa nini:
<?php
$arr1 = [1, 2, 3, 4, 5];
$arr2 = &$arr1;
$arr1[0]++;
$arr2[0]++;
echo $arr1[0];
echo $arr2[0];
?>
