PHP如何循環(huán)內(nèi)循環(huán) 12條數(shù)據(jù) 4條為一循環(huán)頁(yè) 輸出3頁(yè)

$result = array();
$page = 1;
foreach($data as $val) {

$result[$page][] = $val;
if($page % 4 == 0) {
    $page++;
}

}

$data      = range(1,30);
$chunkData = array_chunk($data, 4);
var_dump($chunkData);

$arr = range(1,12);
$page = 0;
$list_row = 4;
while($data = array_slice($arr, $page * $list_row, $list_row)){
    // $data就是取到的每一頁(yè)的數(shù)據(jù)
    var_dump($data);
    $page++;
}

$data = range(1,24);

$pageSize = 4;
$pageCount = ceil(count($data) / $pageSize);

$page = isset($_GET['page'])?$_GET['page']:1;
if($page > 1)
{
    echo "<a href='?page=".($page - 1)."'>上一頁(yè)</a>";
}
for($i = ($page - 1) * $pageSize; $i < $page * $pageSize; $i++)
{
    echo $data[$i];
}
if($page < $pageCount)
{
    echo "<a href='?page=".($page + 1)."'>下一頁(yè)</a>";
}