Problema al subir foto en envío de publicaciones

<?php
/*
Template Name: Publicar Portada
*/
?>
<?php
if( 'POST' == $_SERVER['REQUEST_METHOD'] && !empty( $_POST['action'] ) &&  $_POST['action'] == "new_post") {

	// Do some minor form validation to make sure there is content
	if (isset($_POST['submit'])) {
    		$error = "";

    	if (!empty($_POST['title'])) {
    		$title = $_POST['title'];
   	 } else {
   	 	$error .= "Por Favor Añada Un Titulo<br />";
   	}

    	if (!empty($_POST['description'])) {
    		$description = $_POST['description'];
   	 } else {
   		$error .= "Agrega una descripcion<br />";
   	}

	    if (!empty($_POST['post_tags'])) {
    		$post_tags = $_POST['post_tags'];
   	 } else {
   	 	$error .= "Agrega algunas palabras claves<br />";
   	}

		//if (!empty($_POST['winerating'])) {
    		//$post_tags = $_POST['winerating'];
   	 //} else {
   	 	//$error .= "Please add some keywords<br />";
  // 	}
		// IMAGE VALIDATION - CHECK IF THERE IS AN IMAGE AND THAT ITS THE RIGHT FILE TYPE AND RIGHT SIZE
		if ($_FILES) {
			foreach ($_FILES as $file => $array) {
				//Check if the $_FILES is set and if the size is > 0 (if =0 it's empty)

				if(isset($_FILES[$file]) && ($_FILES[$file]['size'] > 0)) {

					$tmpName = $_FILES[$file]['tmp_name'];
					list($width, $height, $type, $attr) = getimagesize($tmpName);

				if($width!=850 || $height!=315)
				{
					$error .= "La imagen es muy pequeña<br />";
					unlink($_FILES[$file]['tmp_name']); 
				}

				// Get the type of the uploaded file. This is returned as "type/extension"
                $arr_file_type = wp_check_filetype(basename($_FILES[$file]['name']));
                $uploaded_file_type = $arr_file_type['type'];

                 // Set an array containing a list of acceptable formats
                $allowed_file_types = array('image/jpg','image/jpeg','image/gif','image/png');

                 // If the uploaded file is the right format
                if(in_array($uploaded_file_type, $allowed_file_types)) {

				} else { // wrong file type
   	 			$error .= "Por favor usa una imagen en formato JPG, GIF, or PNG file<br />";
                   	 }

				} else {
				$error .= "Por favor agregue una imagen<br />";
				}
			} // end for each
		} // end if

		$tags = $_POST['post_tags'];
		//$winerating = $_POST['winerating'];

		// ADD THE FORM INPUT TO $new_post ARRAY
		if (empty($error)) {
			$new_post = array(
			'post_title'	=>	$title,
			'post_content'	=>	$description,
			'post_category'	=>	array($_POST['cat']),  // Usable for custom taxonomies too
			'tags_input'	=>	array($tags),
			'post_status'	=>	'pending',           // Choose: publish, preview, future, draft, etc.
			'post_type'	=>	'post',  //'post',page' or use a custom post type if you want to
			//'winerating'	=>	$winerating
		);

		//SAVE THE POST
		$pid = wp_insert_post($new_post);

        //KEEPS OUR COMMA SEPARATED TAGS AS INDIVIDUAL
		wp_set_post_tags($pid, $_POST['post_tags']);

		//REDIRECT TO THE NEW POST ON SAVE
		$link = get_permalink( $pid );
		wp_redirect( $link );

		//ADD OUR CUSTOM FIELDS 
		add_post_meta($pid, '_aioseop_keywords', $tags, true); 
		add_post_meta($pid, '_aioseop_description', $description, true);

			//INSERT OUR MEDIA ATTACHMENTS
			if ($_FILES) {
				foreach ($_FILES as $file => $array) {
				$newupload = insert_attachment($file,$pid);
				// $newupload returns the attachment id of the file that
					// was just uploaded. Do whatever you want with that now.
				}
			} // END THE IF STATEMENT FOR FILES
		} // END SAVING POST
	} // END VALIDATION
} // END THE IF STATEMENT THAT STARTED THE WHOLE FORM

//POST THE POST YO
do_action('wp_insert_post', 'wp_insert_post');

?>

<?php get_header(); ?>
	
                      <?php if ( have_posts() ) while ( have_posts() ) : the_post(); ?>
					
					<div id="post-<?php the_ID(); ?>" <?php post_class(); ?>>
					<?php if ( is_front_page() ) { ?>
						<h2 class="entry-title"><?php the_title(); ?></h2>
					<?php } else { ?>
						<h1 class="entry-title"><?php the_title(); ?></h1>
					<?php } ?>

					
					 <?php
						if (!empty($error)) {
							echo '<p class="error"><strong>Su Mensaje No Fue Enviado<br/> Por el siguiente error:</strong><br/>' . $error . '</p>';
						} elseif (!empty($success)) {
							echo '<p class="success">' . $success . '</p>';
						}
					?>
						<?php the_content(); ?>

		<!-- WINE RATING FORM -->

		<div class="wpcf7">
		<form id="new_post" name="new_post" method="post" action="" class="wpcf7-form" enctype="multipart/form-data">
			<!-- post name -->
			<fieldset name="name">
				<label for="title">Nombre la portada:</label>
				<input type="text" id="title" value="" tabindex="5" name="title" />
			</fieldset>

			<!-- post Category -->
			<fieldset class="category">
				<label for="cat">Selecciona categoria:</label>
				<?php wp_dropdown_categories( 'tab_index=10&taxonomy=category&hide_empty=0' ); ?>
			</fieldset>

			<!-- post Content -->
			<fieldset class="content1">
				<label for="description">Descripcion:</label>
				<textarea id="description" tabindex="15" name="description" cols="80" rows="10"></textarea>
			</fieldset>
<!-- images -->
			<fieldset class="images">
				<label for="bottle_front">Seleccionar Imagen</label>
				<input type="file" name="bottle_front" id="bottle_front" tabindex="25" />
			</fieldset>
<!-- post tags -->
			<fieldset class="tags">
				<label for="post_tags">Palabras clave (separada por coma):</label>
				<input type="text" value="" tabindex="35" name="post_tags" id="post_tags" />
			</fieldset>

			<div align="center">
            <fieldset class="submit">
				<input type="submit" value="Post Review" tabindex="40" id="submit" name="submit" />
			</fieldset>

			<input type="hidden" name="action" value="new_post" /></div>
			<?php wp_nonce_field( 'new-post' ); ?>
		</form>
		 <!-- END WPCF7 -->
	<!-- END OF FORM -->
	<?php endwhile; // end of the loop. ?>
<?php get_footer(); ?>

if ( (move_uploaded_file($tmpName, $dir)) ) {
	echo "Ya está hecho! El archivo se ha guardado como: " . $dir;
} else {
	echo "Error: ¡Ha ocurrido un problema durante la subida!";
}

$filename = basename($_FILES['$file']['name']);
$dir = dirname(__FILE__) . '/images/' . $filename;

if(in_array($uploaded_file_type, $allowed_file_types)) {

}