PHP 执行mysql insert插入的数据过长时，使用array_chunk()进行切割

因为访客ip存在几十万条，无法一次性插入到数据库中，于是使用array_chunk()将ip数组切割成无数个小数组，一次执行sql语句。

$visitorIp = array();
//$start = memory_get_usage();
for( $i = 0; $i < 200000; $i++ ) { //200000条ip地址
    $visitorIp[] = [ 'ips' => '192.168.0.' . $i ];
}
/**
 * 防止数据量过大，sql不能被执行(取50000条,占用字节数约为2MB，不同环境下可能存在差异)
 */
$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
        )

)