title: Assign jquery value to php variable
body: <p>In same page i set the jquery value while click the button. i want pass the value to php variable in same page without form submitting.</p>
  
  <pre><code>&lt;input type="button" name="next"  class="next btn btn-primary" value="Proceed To Checkout Page" /&gt;
  </code></pre>
  
  <p>Jquery</p>
  
  <pre><code>$(".next").click(function(){
         &lt;?php $var1="1";?&gt;
   }
  </code></pre>
  
  <p>While check the php value </p>
  
  <pre><code>&lt;?php if(isset($var1)){
       echo $var1;
   }else{
      echo "NULL";
     }?&gt;
  </code></pre>
  
  <p>Every time time i got the null value. Where i getting mistake. 
  Ps: I cant able to send the ajax call to get the value</p>