将多个数组作为序列化插入到数据库中

I have 2 arrays with same name. I want to instert both in to same column after serialize. Please help me!

$pymntDtlsArray = array(
'description' => "package_name",
'amount' => 999,
'qty' => 1
);


$pymntDtlsArray = array(
'description' => "device_name",
'stb' => 1,
'unique_id' => 111,
'amount' => 0,
'qty' => 1
);

$register->details_array = serialize($pymntDtlsArray);  

You can use json_encode() before saving, and save produced json in database, and when load data use json_decode().

I would suggest something like this:

$pymntDtlsArray = array(
    array(
        'description' => "package_name",
        'amount' => 999,
        'qty' => 1
    ),
    array(
        'description' => "device_name",
        'stb' => 1,
        'unique_id' => 111,
        'amount' => 0,
        'qty' => 1
    )
);
$register->details_array = serialize($pymntDtlsArray);