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<?php
 
$arr = range(1, 5);
 
foreach($arr as &$item) {
    $item *= 2;
}
 
print_r($arr);

Success #stdin #stdout 0.01s 82560KB

stdin

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Standard input is empty

stdout

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Array
(
    [0] => 2
    [1] => 4
    [2] => 6
    [3] => 8
    [4] => 10
)

https://ideone.com/ZAemC0

language:

PHP (php 7.3.5)

created:

visibility:

public

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