call php function with onclick event - php

Question

php_file:-
class class_name{
function method1(){
//some code
}
function method2(){
//some code
}
}
in html:-
<i class="fa fa-angle-right" onclick=""></i>
How can i call function from php file when the icon clicked

Answer 1

A jquery demo is as follows:-
abc.php:- (you can change extension to .html also if you are not going to use any php code in this file)
<button class="fa fa-angle-right" onclick="myFunction();">Click Me Please!</button>
<script src= "https://code.jquery.com/jquery-3.1.1.min.js"></script>
<script type="text/javascript">
function myFunction(){
$.ajax({url: "demo_test.php", success: function(result){
alert(result);
}});
}
</script>
demo_test.php:-
<?php
include_once('def.php');
$obj = new myClass();
$result = $obj->method1();
echo $result;
?>
def.php:-
<?php
class myClass{
function method1(){
echo "demo";
}
function method2(){
echo "demo2";
}
}
Output:- http://prntscr.com/clw7hu and http://prntscr.com/clw7sl
Note:-
All three files must be at same working location(same directory)
It's a very small and easy sample to understand what is exactly need and how it can performed. Thanks

Answer 2

You can't, you need jQuery to do this.
Example:
<i class="banana"></i>
<script type="text/javascript">
$(document).ready(function() {
$(".banana").click(function() {
// write action you want to do here
});
});
</script>