Is the jQuery AJAX call using POST method being retrieved as $_GET?

Below is a snippet of code that I've successfully implemented:

<script type="text/javascript">
$(document).ready(function() {
    // Initializing the table
    $('#table_1').tableDnD({
    onDrop: function(table, row) {
    $.tableDnD.serialize();

    $.ajax({
     type: "POST",
     url: "test.php?"+$.tableDnD.serialize(),
     data: "",
     success: function(html){
       alert("Success");
     }
    });
    }
});
});
</script>

Sending data to test.php:

<?php
$table_1[] = $_GET['table_1'];
$i = 0;
if(!empty($table_1[0])){
    foreach($table_1 as $value) {
        foreach($value as $row){
            $i++;
            mysql_query("UPDATE mytable SET tableOrder='$i' WHERE id = '$row'");
        }
    }
}
?>

While the table_1 array retrieves data using $_GET, the aforementioned ajax code indicates we're sending with POST. Changing $_GET to $_POST leads to it not functioning anymore. Why could this be happening?

Answer №1

When extracting information from $_POST, it is recommended to transmit the values through data instead of including them in the URL querystring.

To make this adjustment, your JavaScript code should be modified as shown below:

$.ajax({
 type: "POST",
 url: "test.php",
 data: $.tableDnD.serialize(),
 success: function(response){
   alert("Process successful");
 }
});

With these changes, you can then utilize the following PHP snippet:

<?php
$table_data[] = $_POST['table_data'];
?>

Your initial code worked due to the fact that, as pointed out by Mike Sherov in a comment, any data sent via the URL querystring can always be retrieved using $_GET, regardless of the method used to submit the data.

Answer №2

When you place a parameter in the URL, it is considered a GET method. To utilize POST parameters, they should be included in the data area like this.

<script type="text/javascript">
$(document).ready(function() {
    // Initialize the table
    $('#table_1').tableDnD({
    onDrop: function(table, row) {
    $.tableDnD.serialize();

    $.ajax({
     type: "POST",
<b>     url: "test.php"+,
     data: "" + $.tableDnD.serialize(),</b>
     success: function(html){
       alert("Success");
     }
    });
    }
});
});
</script>

Assuming that $.tableDnD.serialize() generates a valid query string.

I hope this explanation is helpful to you.

Answer №3

It seems like the issue lies in how you are constructing the POST URL by incorporating a query string and including values from tableDnD.

Please refer to the documentation, particularly the "Sending Data to the Server" section, for more information.

Answer №4

url: "sample.php?"+$.sortable.serialize(),

To initiate a get request, use the following code snippet:

$.ajax({
     type: "POST",
     url: "sample.php",
     data: $.sortable.serialize(),
     success: function(response){
       alert("Request successful");
     }
    });

Answer №5

The script you provided does not send any data through the POST method. As a result, PHP interprets the target file as receiving data via the URL using GET. To rectify this issue, ensure that you place the necessary data in the data option before sending it.

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