forms - PHP Select Option from other select value -


this question has answer here:

if select 'man' in first select second select option show man's product database. if select 'woman' in first select second select option show woman's product database. how can set system?

<form method="post" action="" >                      <label>category</label></br>             <select name="cat">                 <option value="man">man</option>                 <option value="woman">woman</option>             </select></br></br>           <label>product</label></br>             <select name="product">                 <option value="">select product</option>             </select></br></br>         <input type="submit" name="submit" value="submit"/> </form> 

$(document).ready(function(){      $("select.cat").change(function(){          var selectcat = $(".cat option:selected").val();    //sample data - code starts here          var data  = '[{"id":1,"name":"product 1"},{"id":2,"name":"product 2"}, {"id":3,"name":"product 3"}]';          data = jquery.parsejson( data );   //sample data ends here  $('#response').html('');         $('#response').append(' <label>product:</label><select class="product" id="product"> </select> ');           $('#response select').append($("<option />").val('').text('select'));           $.each(data,function(index, value){               $('#response select').append($("<option  />").val(value.id).text(value.name));         });  //add above code ajax success - code ends here..           //return false;          $.ajax({              type: "get",              url: "process-ajax.php",              data: { cat : selectcat }           }).done(function(data) {          });      });  });
<script src="https://code.jquery.com/jquery-1.12.4.min.js"></script>  <form>      <table>          <tr>              <td>                  <label>category:</label>                  <select class="cat">                      <option>select</option>                      <option value="1">man</option>                      <option value="2">woman</option>                  </select>               </td>              <td id="response">              </td>          </tr>      </table>  </form>


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