Question

How to shift elements of an array to the right by one position in PHP

Answer 1

function shiftRight(&$arr) {
    $last = end($arr);  // Get the last element
    
    for ($i = count($arr) - 1; $i > 0; $i--) {
        $arr[$i] = $arr[$i - 1];
    }
    
    $arr[0] = $last;
}

function printArray($arr) {
    foreach ($arr as $value) {
        echo $value . " ";
    }
    echo PHP_EOL;
}


$numbers = [0, 1, 2, 3, 4, 5, 6];

shiftRight($numbers);

printArray($numbers);



/*
run:

6 0 1 2 3 4 5 

*/

 

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