keeps on getting an error (jQuery variable to PHP variable)

Question

i still can't get the jquery variable.it keeps on giving me an error

$(document).ready(function()
{
     $("#months").change(function(event)
    {
          $.ajax
          ({
            type: 'post',
             url: "monthly_CRD.php",
             data:
            {
                 "m": $(this).val()
             },
             success: function(msg)
             {
                 alert(msg);
             },
             error: function(msg) 
            {
                 alert("An error happened: " +msg);
            }   
       });
    });

    <div>
<select id="months">
    <option value='00'>Month...</option>
            <option value='01'>Jan</option>
            <option value='02'>Feb</option>
            <option value='03'>Mar</option>
            <option value='04'>Apr</option>
   </select>
   </div>

   <?php
     if (isset($_POST['m'])) 
      {
         $m = $_POST['m'];
         echo $m;
      }
   ?>

the error is An error happened: [objectXMLHttpRequest]

this is the jQuery

  $(document).ready(function()
{
    $("select").change(function(event)
    {
        var view=$(this).val();
        switch(view)
        {
            case "daily":
            {
                $("#graph").load('../crd_reports/daily_CRD.php');
                $("#top10").empty();
                break;
            }
            case "weekly": 
            {
                $("#graph").load('../crd_reports/weekly_CRD.php');
                $("#top10").load('../crd_reports/top10_weekly.php');
                break;
            }
            case "monthly":
            {
                $("#graph").load('../crd_reports/monthly_CRD.php');
                $("#top10").load('../crd_reports/top10_monthly.php');
                break;
            }
            case "yearly":
            {
                $("#graph").load('../crd_reports/yearly_CRD.php');
                $("#top10").load('../crd_reports/top10_yearly.php');
                break;
            }
            default: 
            {
            }
        }

    }); 
});

and to see the error. instead of doing an alert write console.log and check your console in firfox or chrome. console.log(msg) — Baz1nga
– Baz1nga, Commented Aug 9, 2011 at 6:01
@shobe089 I suggest you read the API for the ajax() "error" callback - api.jquery.com/jQuery.ajax — Phil
– Phil, Commented Aug 9, 2011 at 6:04
@shobe089 Here's a hint; argument #1 to the error callback is not an error message. Also, there are three arguments for you to use, not just one — Phil
– Phil, Commented Aug 9, 2011 at 6:13

sje397 · Accepted Answer · 2011-08-09 06:01:36Z

2

You saved the value with

var m = $(this).val();

...so you should put this into your data:

data: {
  "m": m
}

answered Aug 9, 2011 at 6:01

sje397

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2 Comments

sje397 Over a year ago

@shobe089 - what happens if you put it back?

shobe089 Over a year ago

if i removed the variable and use this the alert function for error would give me An error happened: [objectXMLHttpRequest]

Ragnar · Accepted Answer · 2011-08-09 06:08:26Z

0

"this" change context inside the ajax function to represent the "ajax()" function instead of the selected month, so it won't have val() any more:

data:
{
    "m": $(this).val() // this is like -> "m": $.(ajax()).val()
},

retrive the "m" variable saved in the outer context instead:

data:
{
    "m": m
},

It should do the trick!

answered Aug 9, 2011 at 6:08

Ragnar

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Comments

thecodeparadox · Accepted Answer · 2011-08-09 06:28:31Z

0

The Code you've given is in a .html or '.php' file? what ever, please check the url of this page. if you url is like something like file:///E:/wamp/www/test/post.html (example) then it will not work, you have to use http://localhost/test/post.html i.e a server url. I think this will fix your problem

answered Aug 9, 2011 at 6:28

thecodeparadox

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4 Comments

shobe089 Over a year ago

well it's like this.the file is a php file and is called through jquery.

thecodeparadox Over a year ago

@shobe089 i want to know that the code of jquery reside in .html or .php file. if you change the url http://localhost/test/post.html or http://localhost/test/post.php it will work, i hope

shobe089 Over a year ago

there i already posted the jquery.i edited the post above.thank you for the help.

shobe089 Over a year ago

i'm calling a php file named reports_CRD.php then from there the viewer could change which view he or she wants without loading the whole page.

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