使用jQuery和PHP在数据库中存储数据而不使用表单

Question

Ok, so I'm trying to store users' key presses in a database, but so far I had no luck. I have the following JavaScript code:

$(document).bind('keypress', function (event) {
    $.post('processPost.inc.php', { "valueToStore"  : event.which } );
}

Then, I have my processPost.inc.php PHP file, with the following code:

<?php

if (isset($_POST['valueToStore'])) {
    storeIntoDatabase(sanitizeInput($_POST['valueToStore']));
}

I know that the event detection itself works, that the storeIntoDatabase and sanitizeInput functions and everything else works, but I'm almost certain that I'm using jQuery 's $.post in the wrong way (or there's a typo somewhere but that wouldn't be so hard to fix, just a pain in the ass).

I'd like to know how to use it in this specific situation. I've been looking up $.post examples and all, and every example I found talks about forms and serializing, but in this case there is no form at all. Can anyone help me with this?

Answer 1

According to the doc: ^[source]

The data option can contain either a query string of the form key1=value1&key2=value2, or a map of the form {key1: 'value1', key2: 'value2'}

In a map, the key should not be wrapped with quotes:

$(document).bind('keypress', function (event) {
    $.post('processPost.inc.php', { valueToStore : event.which } );
}