html / php没有上传文件

I have looked all over stackoverflow and have not yet found a working answer. The HTML form allows the user to upload multiple files using one single input, the values then travel to a php file (named upload.php) to be uploaded to their final resting place.... this doesn't happen.

My HTML form:

<form method="post" action="upload.php" enctype="multipart/form-data">
    <input name="upload[]" type="file" multiple="multiple" />
    <input type="submit" value="Upload Files" class="btn btn-default btn-sm"/>
</form>

My PHP file:

<?php
if(count($_FILES['upload']['name'])) {  
    foreach ($_FILES['upload']['name'] as $file) {
        move_uploaded_file($_FILES["upload"]["tmp_name"], './uploads/'.$_FILES["upload"]["name"]);
    }  
}  
?>

try this code

<form method="post" action="upload.php" enctype="multipart/form-data">
    <input name="upload[]" type="file" multiple="multiple" />
    <input type="submit" name="submit" value="Upload Files" class="btn btn-default btn-sm"/>
</form>

Your PHP file

<?php
if(isset($_POST["submit"]))
{
    if(count($_FILES['upload']['name'])) {  
        foreach ($_FILES['upload']['name'] as $key=>$file) {
            move_uploaded_file($_FILES['upload']['tmp_name'][$key], './uploads/'.$file);
        }  
    } 

}
?>

I have edited this answer and below code is working for me.... hope this will help.

<!DOCTYPE HTML>
<html>  
<body>

<form method="post" action="" enctype="multipart/form-data">
    <input name="upload[]" type="file" multiple="multiple" />
    <input type="submit" name="submit" value="Upload Files" class="btn btn-default btn-sm"/>
</form>
<div>
<?php if(isset($_POST['submit'])){
    foreach($_FILES['upload']['name'] as $key=>$filename){
            move_uploaded_file($_FILES["upload"]["tmp_name"][$key], '.pathtoupload/'.$filename);
    }
 }?>
</div>
</body>
</html>