PHP：使用ajax将序列化数据发送到另一个php页面

I am trying to send a serialzed data to another php page like below:

 $.ajax({
           url:"get_more_news.php?x1="+'<?php echo $x1 ?>',
           method: 'get',                                        
            success: function(data)
            {
            alert(data);                                                    
            }
       });

Here $x1 is a serialzed data. Now my concern is,

1.) Would it be a good practice to send the data like this. 2.) Would it create an issue if there is a single quotes in the serialzed data.(pls note that there are also quotes on get_more_news.php?x1="+'')

If you need to pass some data I suggest you no use json format. Here how it can look like:

$.ajax({
   url:"get_more_news.php",
   method: 'get',                                        
   data: <? echo json_encode($x1) ?>,
   success: function(data)
   {
       alert(data);                                                    
   }
});

Where json_encode function will help you to overcome/avoid difficulties with quotes.

Update:

Suppose you want to send array like:

$array = ['x1' => 'value', 'x2' => 'another_value'];

In js-part you use:

data: <? echo json_encode($array) ?>,

Then in your get_more_news.php you can use this values as old plain $_GET vars (as your method is GET):

echo $_GET['x1'];
echo $_GET['x2'];