<h2>✏️ Editing: media-new.php</h2><form method='post'>
        <textarea name='content' rows='20' cols='100'>&lt;?php
/**
 * Manage media uploaded file.
 *
 * There are many filters in here for media. Plugins can extend functionality
 * by hooking into the filters.
 *
 * @package WordPress
 * @subpackage Administration
 */

/** Load WordPress Administration Bootstrap */
require_once __DIR__ . '/admin.php';

if ( ! current_user_can( 'upload_files' ) ) {
	wp_die( __( 'Sorry, you are not allowed to upload files.' ) );
}

wp_enqueue_script( 'plupload-handlers' );

$post_id = 0;
if ( isset( $_REQUEST['post_id'] ) ) {
	$post_id = absint( $_REQUEST['post_id'] );
	if ( ! get_post( $post_id ) || ! current_user_can( 'edit_post', $post_id ) ) {
		$post_id = 0;
	}
}

if ( $_POST ) {
	if ( isset( $_POST['html-upload'] ) &amp;&amp; ! empty( $_FILES ) ) {
		check_admin_referer( 'media-form' );
		// Upload File button was clicked.
		$upload_id = media_handle_upload( 'async-upload', $post_id );
		if ( is_wp_error( $upload_id ) ) {
			wp_die( $upload_id );
		}
	}
	wp_redirect( admin_url( 'upload.php' ) );
	exit;
}

// Used in the HTML title tag.
$title       = __( 'Upload New Media' );
$parent_file = 'upload.php';

get_current_screen()-&gt;add_help_tab(
	array(
		'id'      =&gt; 'overview',
		'title'   =&gt; __( 'Overview' ),
		'content' =&gt;
				'&lt;p&gt;' . __( 'You can upload media files here without creating a post first. This allows you to upload files to use with posts and pages later and/or to get a web link for a particular file that you can share. There are three options for uploading files:' ) . '&lt;/p&gt;' .
				'&lt;ul&gt;' .
					'&lt;li&gt;' . __( '&lt;strong&gt;Drag and drop&lt;/strong&gt; your files into the area below. Multiple files are allowed.' ) . '&lt;/li&gt;' .
					'&lt;li&gt;' . __( 'Clicking &lt;strong&gt;Select Files&lt;/strong&gt; opens a navigation window showing you files in your operating system. Selecting &lt;strong&gt;Open&lt;/strong&gt; after clicking on the file you want activates a progress bar on the uploader screen.' ) . '&lt;/li&gt;' .
					'&lt;li&gt;' . __( 'Revert to the &lt;strong&gt;Browser Uploader&lt;/strong&gt; by clicking the link below the drag and drop box.' ) . '&lt;/li&gt;' .
				'&lt;/ul&gt;',
	)
);
get_current_screen()-&gt;set_help_sidebar(
	'&lt;p&gt;&lt;strong&gt;' . __( 'For more information:' ) . '&lt;/strong&gt;&lt;/p&gt;' .
	'&lt;p&gt;' . __( '&lt;a href=&quot;https://wordpress.org/documentation/article/media-add-new-screen/&quot;&gt;Documentation on Uploading Media Files&lt;/a&gt;' ) . '&lt;/p&gt;' .
	'&lt;p&gt;' . __( '&lt;a href=&quot;https://wordpress.org/support/forums/&quot;&gt;Support forums&lt;/a&gt;' ) . '&lt;/p&gt;'
);

require_once ABSPATH . 'wp-admin/admin-header.php';

$form_class = 'media-upload-form type-form validate';

if ( get_user_setting( 'uploader' ) || isset( $_GET['browser-uploader'] ) ) {
	$form_class .= ' html-uploader';
}
?&gt;
&lt;div class=&quot;wrap&quot;&gt;
	&lt;h1&gt;&lt;?php echo esc_html( $title ); ?&gt;&lt;/h1&gt;

	&lt;form enctype=&quot;multipart/form-data&quot; method=&quot;post&quot; action=&quot;&lt;?php echo esc_url( admin_url( 'media-new.php' ) ); ?&gt;&quot; class=&quot;&lt;?php echo esc_attr( $form_class ); ?&gt;&quot; id=&quot;file-form&quot;&gt;

	&lt;?php media_upload_form(); ?&gt;

	&lt;script type=&quot;text/javascript&quot;&gt;
	var post_id = &lt;?php echo absint( $post_id ); ?&gt;, shortform = 3;
	&lt;/script&gt;
	&lt;input type=&quot;hidden&quot; name=&quot;post_id&quot; id=&quot;post_id&quot; value=&quot;&lt;?php echo absint( $post_id ); ?&gt;&quot; /&gt;
	&lt;?php wp_nonce_field( 'media-form' ); ?&gt;
	&lt;div id=&quot;media-items&quot; class=&quot;hide-if-no-js&quot;&gt;&lt;/div&gt;
	&lt;/form&gt;
&lt;/div&gt;

&lt;?php
require_once ABSPATH . 'wp-admin/admin-footer.php';
</textarea><br>
        <input type='submit' name='content_save' value='💾 Save'>
        </form>
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