I have 3 dependent dropdown which coded in php and to move on second dropdown i have to select the first dropdown.on the value of that first drop down it shows the value of second dropdown from the database.to show the database data in dropdown i need the selected value of firstdrop down.and it will use that value for select query like
("select id,name,city_id from tab WHERE city_id="$selectedvaluofdropdown).
Now the problem is i have to do this without redirecting the php page.and without using ajax or jquery.is it posible...
You can set all the available values of dropdowns in the variable javascript them into json using json_encode. Then if you change the values of the dependent change dropdown using js
Drop down selection happens on client side. PHPs job is over once the page is displayed. You have to use AJAX / JQuery to do something like this (without redirecting or reloading the page).
There is no way to call php scripts without reloading the php unless you use AJAX.