PHP 執行mysql insert插入的數據過長時，使用array_chunk()進行切割

因爲訪客ip存在幾十萬條，無法一次性插入到數據庫中，於是使用array_chunk()將ip數組切割成無數個小數組，一次執行sql語句。

$visitorIp = array();
//$start = memory_get_usage();
for( $i = 0; $i < 200000; $i++ ) { //200000條ip地址
    $visitorIp[] = [ 'ips' => '192.168.0.' . $i ];
}
/**
 * 防止數據量過大，sql不能被執行(取50000條,佔用字節數約爲2MB，不同環境下可能存在差異)
 */
$currentTime = date('Y-m-d H:i:s');
$visitorIp = array_chunk($visitorIp,50000);
foreach ( $visitorIp as $ik => $iv ) {
    $sql = "INSERT INTO RECORD_VISITORS_IP(IP,AddTime) VALUES";
    foreach( $iv as $k => $v ) {
        $sql .= "('{$v['ips']}','{$currentTime}'),";
    }
    $sql = rtrim($sql,',');
    $result = mysqli_query($link,$sql);
}

$cars=array("Volvo","BMW","Toyota","Honda","Mercedes","Opel");
print_r(array_chunk($cars,2));

Array
(
    [0] => Array
        (
            [0] => Volvo
            [1] => BMW
        )

    [1] => Array
        (
            [0] => Toyota
            [1] => Honda
        )

    [2] => Array
        (
            [0] => Mercedes
            [1] => Opel
        )

)