iframe usage php uses iframe to implement code for uploading files without refreshing

　
　php code
　　sleep(2);
　$fileTypes = array('jpg','png','gif','bmp'); result = null;
　$uploadDir = './upfiles';
　$maxSize = 1 * pow(2,20);
　if ($_SERVER['REQUEST_METHOD'] == 'POST' && isset($_POST['sub '])) {
　$myfile = $_FILES['myfile'];
　$myfileType = substr($myfile['name'], strrpos($myfile['name'], ".") + 1);
if ($myfile['size'] > myfile['tmp_name'])) {
　 $toFile = $uploadDir . '/' . $myfile['name'];
　 if (@move_uploaded_file($myfile['tmp_name'], $toFile)) {
　 $result
. top.window.stopUpload();
　


The above introduces the code of iframe usage. PHP uses iframe to implement the file upload function without refreshing, including the content of iframe usage. I hope it will be helpful to friends who are interested in PHP tutorials.