Php input onchange

/*
You can't execute PHP in the browser.
Do an AJAX call or POST to a PHP function on the web server, 
or write a Javascript function that executes in the browser.
*/

// html
<input name="file" onchange="mainInfo(this.value);"
// AJAX
function mainInfo(id) {
    $.ajax({
        type: "GET",
        url: "mypage.php",
        data: "mainid =" + id,
        success: function(result) {
            $("#somewhere").html(result);
        }
    });
};

// php
<?php
    if(isset($_GET['mainid'])){
        mainInfo($_GET['mainid']);
    }
?>

Source: stackoverflow.com

Similar codes

4 votes343 views4 answers
Laravel meta csrf
PHP Laravel
0 vote289 views1 answer
Laravel redis sentinel
PHP
2 votes241 views1 answer
Php stdclass is object?
PHP
0 vote320 views2 answers
Column not found: 1054 Unknown column 'api_token' in 'where clause
PHP
0 vote317 views1 answer
Laravel query foreach
PHP Laravel
3 votes309 views3 answers
Dump php array into javascript array
PHP
6 votes268 views3 answers
Disable foreign key laravel
PHP
-1 vote286 views1 answer
PHP Warning: require(/Applications/Ampps/www/SalesSystem/vendor/composer/../symfony/polyfill-php80/bootstrap.php): failed to open stream: No such file or directory in /Applications/Ampps/www/SalesSystem/vendor/composer/autoload_real.php on line 66
PHP
48 votes326 views5 answers
Laravel clear route cache
PHP Laravel
0 vote268 views1 answer
Search WordPress with custom field
PHP