how can call value in jquery function in onclick

Question

I want add value in jquery function an post it to my php file. I call my jquery function whit onclick event but i don't know how can add value. I have this input tag:

 <input type="hidden" name="code" id="code" value="<?php echo $code; ?>"  />

and my onlick event this is:

<span onClick="previewed_files(); checkDb();">start</span>

and my checkDb function it is:

    <script type="text/javascript" >

    function checkDb(adscode){
        $.post('myphp.php',{adscode: adscode},function(data){
            $('#mydiv').html(data);}

                        );
            }
  </script>

now I can't call value from input by id code in my checkDb() function in onclick event. please help me. thank you

You call checkDb() with no parameters, so "adscode" is undefined when the function is executed. Assuming your code (in $code) does not contain single or double quotes, I'd try <span onClick="previewed_files(); checkDb('<?php echo $code; ?>');">start</span> — al01
– al01, Commented Aug 26, 2014 at 17:53

Nyamiou The Galeanthrope · Accepted Answer · 2014-08-26 18:06:04Z

1

Here :

<script type="text/javascript" >
function checkDb(adscode){
    $.post('myphp.php',{adscode: adscode, value: $('#code').val()},function(data){
        $('#mydiv').html(data);});
}
</script>

edited Aug 26, 2014 at 18:06

answered Aug 26, 2014 at 17:53

Nyamiou The Galeanthrope

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1 Comment

Nyamiou The Galeanthrope Over a year ago

work for me : JSFiddle and RequestBin

Rakesh kumar · Accepted Answer · 2014-08-26 18:04:14Z

0

You must check for ajax tutorials to get value in php. You cant get parameter value in function untill you pass in the function.

to get value of hidden variable -

var value = jQuery('#code').val();

Now, you can use this variable in your funciton.

edited Aug 26, 2014 at 18:04

answered Aug 26, 2014 at 17:48

Rakesh kumar

1356 bronze badges

1 Comment

user3246727 Over a year ago

thank you I add your code in my function now how can use this variable? sorry I don't know jquery well

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