move_upload_file in wordpress

  • I want to upload file in wordpress, but I wanna use move_upload_file, not wordpress’s upload function. SO this is my code:

    <html>
<body>
<form action="" method="post" enctype="multipart/form-data">
   <p>
      <label for="file">Select a file:</label> <input type="file" name="userfile" id="file"> <br />
      <button name = "submit">Upload File</button>
   <p>
</form>

<?php
function uploadImg ($height, $width) {

	$allowed_filetypes = array('.jpg','.gif','.bmp','.png', '.php');
	$max_filesize = 5242880;
	$upload_path =plugins_url().'/gallery_plugin/imgs/';
	echo $upload_path;

	$filename = $_FILES['userfile']['name'];
	$ext = substr($filename, strpos($filename,'.'), strlen($filename)-1);
	$img = $upload_path . $filename;

	if(!in_array($ext,$allowed_filetypes))
		die('The file you attempted to upload is not allowed.');

	if(filesize($_FILES['userfile']['tmp_name']) > $max_filesize)
		die('The file you attempted to upload is too large.');

	if(move_uploaded_file($_FILES['userfile']['tmp_name'], $upload_path . $filename)){
	   	// echo 'Your file upload was successful!';
		echo "<img src =".$img." width =".$width." height = ".$height.">";
		}
	else{
		echo 'There was an error during the file upload.  Please try again.';
		}
}

$width="200px";
$height="300px";
if (isset($_POST['submit'])){
uploadImg ($width, $height);
}
?>
</body>
</html>

    But I get such error:

    Warning: move_uploaded_file(https://localhost/wordpress-gallery/wp-content/plugins/gallery_plugin/imgs/Koala.jpg) [function.move-uploaded-file]: failed to open stream: HTTP wrapper does not support writeable connections in C:\xampp\htdocs\wordpress-gallery\wp-content\plugins\gallery_plugin\views\images_add.php on line 28

    What can be the problem?
    Thanks!

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