如何在某些PHP代码中使用jQuery var？

Question

I know there are a few topics on this subject, but after I spent 2 or 3 hours trying to get something good out of them, I just decided to ask this question on a specific point.

So here is my problem : I have got a table and I am using a jQuery function to select a row of this table. Now what i actually want to do is getting the text content of the div contained in the first td of the row.

I already used a getter on it and I am checking the getted value with an alert as you can see in th following code :

    $("#myRow").click(function() {
        $(".selectedRow").removeClass("selectedRow").addClass("unselected");
        $(this).addClass("selectedRow").removeClass("unselected");
        var myValue = $(".selectedRow .firstTd div").text();
        alert('myValue');
    });

So now, what I am trying to do is to send the myValue variable through an ajax request by replacing my alert by this piece of code :

    $.ajax({
        type: 'get',
        url: 'index.php',
        data: {"myValue" : myValue},
        success: function(rs)
        {
            alert(myValue);
        }
    });

Then, back to my php code, I am tring to observe the obtained variable by using an echo, just like this :

    <?php echo $_GET['myValue']; ?>

But there is just no way for me to know if my page got it beacause the echo just prints nothing... So i was wondering if someone could do something for me. Thanks.

PS : Oh, by the way ; I don't really know if this can matter, but my page index.php already receives data by a post.

Answer 1

Do a var dump of the request var to see if anything is coming through:

<?php
var_dump($_REQUEST);

If not, do a console.log() on 'myValue' to make sure it exists before sending the ajax request - the issue may lie in your js rather than you php.