php input onchange

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Elena
13 May 2016
1/*
2You can't execute PHP in the browser.
3Do an AJAX call or POST to a PHP function on the web server, 
4or write a Javascript function that executes in the browser.
5*/
6
7// html
8<input name="file" onchange="mainInfo(this.value);"
9// AJAX
10function mainInfo(id) {
11    $.ajax({
12        type: "GET",
13        url: "mypage.php",
14        data: "mainid =" + id,
15        success: function(result) {
16            $("#somewhere").html(result);
17        }
18    });
19};
20
21// php
22<?php
23    if(isset($_GET['mainid'])){
24        mainInfo($_GET['mainid']);
25    }
26?>
27
source
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