AJAX POST data not being completely sent to server

Question

I'm uploading a CSV (65KB) through a form on my site, parsing it with papaparse and then POSTing it with ajax to my server:

console.log(csv)
// if everything is ok, send via AJAX to process with PHP
$.ajax({
    type: "POST",
    url: "scripts/batch_objects.php",
    dataType: 'json',
    data: {'Data': csv},
    success: function(result){
        $("#batchResult").html(result);
    },
    error: function(result) {
        $("#batchResult").html(result);
    },
});

In the console, I can see that the CSV is properly uploaded and parsed - it confirms that all the rows (435 of them) are set in the csv var. On the server side I've got a quick script to check things out:

<?php
    $csv = $_POST['Data'];
    echo count($csv);
?>

However on the server side I'm only getting 143 of the rows (the output of the echo statement), instead of all 435.

I've tried setting php_value post_max_size 20M in my .htaccess but that hasn't helped.

Can you see the actual post request in FireBug or something simillar? You should see if the data is passed complete to the server script there. — j0hny, Oct 21 '15 at 15:09
You're sending it as text in a parameter rather than a file. — developerwjk, Oct 21 '15 at 15:16
Looking at the actual POST request (Chrome developer tools -> Network tab -> Headers), I can see that all the information is being sent in the header — Constantino, Oct 21 '15 at 15:21
How many characters is the text you're putting in the 'Data' parameter? — developerwjk, Oct 21 '15 at 15:24
I think you can use `phpinfo()` to verify that the `post_max_size` is actually being set successfully. Also, do you know if it's giving you the 1st row through the 143rd row or some section in between or at the end? — Reed, Oct 21 '15 at 16:06
It's the first 143 rows; post_max_size is being properly set. — Constantino, Oct 21 '15 at 16:09

score 0 · Answer 1 · edited May 23 '17 at 12:29

The following fixed things for me (found inspiration here):

// get our data together
var postData = {};
postData.Table = table;
postData.Action = action;
postData.Data = csv;

// if everything is ok, send via AJAX to process with PHP
$.ajax({
    type: "POST",
    url: "scripts/batch_objects.php",
    contentType: "application/json",
    data: JSON.stringify(postData),
    success: function(result){
        $("#batchResult").html(result);
        console.log("Success " + result);
    },
    failure: function(result) {
        $("#batchResult").html('ERROR: ' + result);
        console.log('Eror ' + result);
    },
});

Then on the sever side you can access the POST data with:

$post_data = json_decode($HTTP_RAW_POST_DATA);

AJAX POST data not being completely sent to server

1 Answers1