PHP-如何从二进制字符串到数据库中的Blob？

我有一个二进制字符串，我正在尝试将其放入数据库中。为此，我尝试将其解压缩为二进制数组，然后将其插入数据库。但是一旦我这样做，blob列就会显示为空？我真的陷在这个问题上了。$ request-> recording是二进制字符串。

Var Dump看起来像这样，只是它的时间更长，但是我将其切断，否则它将太长

array（5177）{ 2 => int（0）2 =>
int（1）[3] => int（0）[4] => int（0）[5] => int（0）[6] = >
int（255）[7] => int（255）[8] =>

插入数据库

function insertIntoTable($connection, $tablename, $request)
{
    $stmt = $connection->prepare("INSERT into $tablename(game_name, gamer_tag, meta_data, recording) values (?, ?, ?, ?)");
    $byteArray = unpack('C*', $request->recording);
    var_dump($byteArray);
    $stmt->bind_param("sssb", $request->game_name, $request->gamer_tag, $request->meta_data, $byteArray);

    if (!$stmt->execute()) {
        echo "Execute failed: (" . $stmt->errno . ") " . $stmt->error . " \r\n";
    }
}

Base 64编码结果

字符串（1916）“AAEAAAD 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 /// 8TVW5pdHlFbmdpbmUuVmVjdG9yMwMAAAABeAF5AXoAAAALCwsJAAAAAAAAAKAcdb8AAAAABfX /// 8WVW5pdHlFbmdpbmUuUXVhdGVybmlvbgQAAAAAAA / AAAAAAA / AAA8AAAAAAAAAAA5