Question

I have jquery with class= modal i want to call that class when page load how to do using javascript or php

Answer 1

You can use either

$(document).ready(function(){ /*Code Here/* }); 

(which is equivalent to $(function(){ /*Code Here/* });)
to execute the code when the DOM is ready, or you can use

$(document).load(function(){ /*Code Here/* });

to execute the code once all sub-elements have also been loaded, i.e. images.