javascript - Getting variables from a Bootstrap slider -


i have variable price range slider webshop. want echo value in php. code in test.php file:

<script>     var slidervalue = $('#output').val(); </script>  <?php     echo "<script>document.writeln(slidervalue);</script>"; ?>

and code in bootstrap-slider.js file:

$(function() {     $("#pricelimit")     .slider({})     .on('slide', function() {         $('#output').html(this.value);     })     .trigger('slide'); });

and code of slider itself:

<input id="pricelimit" type="text" class="span2" value=""     data-slider-min="10"      data-slider-max="200"      data-slider-step="5"      data-slider-value="[20,100]"/>

however, on page, says 'undefined'. going wrong here?

first, make sure have included jquery library in test.php or if included in file, check if jquery included there too.

then, remove var var slidervalue = $('#output').val();from test.php.

also can directly access value using php's $_get['somename'] first adding "name" attribute in input. name="somename"


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