move_uploaded_file() malfunctions!

Folks, Why my code not moving uploaded vid file to permanent directory ?
If you check the comments then you’ll see which line is failing to do what I want.

[code]
<?php
//Required PHP Files.
include ‘header_account.php’; //Required on all webpages of the Site.
?>

<?php

if (!$conn)
{
$error = mysqli_connect_error();
$errno = mysqli_connect_errno();
print “$errno: $errorn”;
exit();
}

if($_SERVER[“REQUEST_METHOD”] == “POST”)
{
//Check whether the file was uploaded or not without any errors.
if(!isset($_FILES[“id_verification_video_file”]) && $_FILES[“id_verification_video_file”][“Error”] == 0)
{
$Errors = Array();
$Errors[] = “Error: ” . $_FILES[“id_verification_video_file”] [“ERROR”];
print_r($_FILES); ?><br><?php
print_r($_ERRORS);
exit();
}
else
{
//Feed Id Verification Video File Upload Directory path.
$directory_path = “uploads/videos/id_verifications/”;
//Make Directory under $user in ‘uploads/videos/id_verifications’ Folder.
if(!is_dir($directory_path . $user)) //IS THIS LINE CORRECT ?
{
$mode = “0777”;
mkdir($directory_path . $user, “$mode”, TRUE); //IS THIS LINE CORRECT ?
}

//Grab Uploading File details.
$Errors = Array(); //SHOULD I KEEP THIS LINE OR NOT ?
$file_name = $_FILES[“id_verification_video_file”][“name”];
$file_tmp = $_FILES[“id_verification_video_file”][“tmp_name”];
$file_type = $_FILES[“id_verification_video_file”][“type”];
$file_size = $_FILES[“id_verification_video_file”][“size”];
$file_error = $_FILES[‘id_verification_video_file’][‘error’];

//Grab Uploading File Extension details.
$file_extension = pathinfo($file_name, PATHINFO_EXTENSION);
if(file_exists(“$directory_path . $user/ . $file_name”)) //THIS LINE IS NOT GIVING THE ERROR THAT FILE HAS ALREADY BEEN UPLOADED. INSTEAD GIVES THE ECHO THAT IS 26 LINES BELOW HERE: “Your Video File “$file_name” has been uploaded successfully!”
//if(file_exists($directory_path . $user . ‘/’ . $file_name)) //THIS LINE IS NOT GIVING THE ERROR THAT FILE HAS ALREADY BEEN UPLOADED. INSTEAD SHOWING BLANK WHITE PAGE.
{
$Errors[] = “Error: You have already uploaded a video file to verify your ID!”;
exit();
}
else
{
//Feed allowed File Extensions List.
$allowed_file_extensions = array(“mp4” => “video/mp4”);

//Feed allowed File Size.
$max_file_size_allowed_in_bytes = 1024*1024*1; //Allowed limit: 1MB.
$max_file_size_allowed_in_kilobytes = 1024*1;
$max_file_size_allowed_in_megabytes = 1;

$max_file_size_allowed = “$max_file_size_allowed_in_bytes”;

//Verify File Extension.
if(!array_key_exists($file_extension, $allowed_file_extensions)) die(“Error: Select a valid video file format. Select an Mp4 file.”);
//Verify MIME Type of the File.
elseif(!in_array($file_type, $allowed_file_extensions))
{
$Errors[] = “Error: There was a problem uploading your file $file_name! Make sure your file is an MP4 video file. You may try again.”; //IS THIS LINE CORRECT ?
}

//Verify File Type by CHECKING File MIME type.
$finfo = finfo_open();
$fileinfo = finfo_file($finfo, $file_name, FILEINFO_MIME);
finfo_close($finfo);

echo “$finfo”;?><br><?php
echo “$fileinfo”;?><br><?php
if($fileinfo != ‘video/mp4; charset=binary’)
{
$Errors[] = “Error: There was a problem uploading your file $file_name! Make sure your file is an MP4 video file. You may try again.”; //IS THIS LINE CORRECT ?
exit;
}

//Verify File Size. Allowed Max Limit: 1MB.
elseif($file_size>$max_file_size_allowed) die(“Error: Your Video File Size is larger than the allowed limit of: $max_file_size_allowed_in_megabytes.”);
//Move uploaded File to newly created directory on the server.
move_uploaded_file(“$file_tmp”, “$directory_path” . “$user/” . “$file_name”); //why is this line not uploading the file to permanent “upload” directory ?
//Notify user their Id Verification Video File was uploaded successfully.
echo “Your Video File “$file_name” has been uploaded successfully!”;
exit();
}
}
}
?>

<form METHOD=”POST” ACTION=”” enctype=”multipart/form-data”>
<fieldset>
<p align=”left”><h3><?php $site_name ?> ID Video Verification Form</h3></p>
<div class=”form-group”>
<p align=”left”<label>Video File: </label>
<input type=”file” name=”id_verification_video_file” id=”id_verification_video_file” value=”uploaded ‘Id Verification Video File.'”></p>
</div>
</fieldset>
<p align=”left”><button type=”submit” class=”btn btn-default” name=”id_verification_video_file_submit”>Submit!</button></p>
</form>

</body>
</html>

<?php
include ‘footer_account.php’; //Required on all webpages of the Site.
?>

[/code]

This line is the problem:

[code]
move_uploaded_file(“$file_tmp”, “$directory_path” . “$user/” . “$file_name”); //why is this line not uploading the file to permanent “upload” directory ?
[/code]

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