从php中的数组中创建具有相同元素的数组

$originalArray = array(1, 2, 3, 4, 5);
$newArray = array();

foreach ($originalArray as $element) {
    $newArray[] = $element;
}

// 输出新数组
print_r($newArray);

$originalArray = array(1, 2, 3, 4, 5);
$newArray = array_fill(0, count($originalArray), null);

// 输出新数组
print_r($newArray);

$originalArray = array(1, 2, 3, 4, 5);
$newArray = array_pad(array(), count($originalArray), null);

// 输出新数组
print_r($newArray);