wp_die( __('Sorry, you are not allowed to edit plugins for this site.') );

		<h1><?php echo esc_html( $title ); ?></h1>

$file = '';

$plugin = '';

if ( isset( $_REQUEST['file'] ) ) {

	$file = wp_unslash( $_REQUEST['file'] );

}

if ( isset( $_REQUEST['plugin'] ) ) {

	$plugin = wp_unslash( $_REQUEST['plugin'] );

}

if ( empty( $plugin ) ) {

	if ( $file ) {

		// Locate the plugin for a given plugin file being edited.

		$file_dirname = dirname( $file );

		foreach ( array_keys( $plugins ) as $plugin_candidate ) {

			if ( $plugin_candidate === $file || ( '.' !== $file_dirname && dirname( $plugin_candidate ) === $file_dirname ) ) {

				$plugin = $plugin_candidate;

				break;

			}

		}

		// Fallback to the file as the plugin.

		if ( empty( $plugin ) ) {

			$plugin = $file;

		}

	} else {

		$plugin = array_keys( $plugins );

		$plugin = $plugin[0];

	}

if ( empty( $file ) ) {

}

// Handle fallback editing of file when JavaScript is not available.

$edit_error = null;

$posted_content = null;

if ( 'POST' === $_SERVER['REQUEST_METHOD'] ) {

	$r = wp_edit_theme_plugin_file( wp_unslash( $_POST ) );

	if ( is_wp_error( $r ) ) {

		$edit_error = $r;

		if ( check_ajax_referer( 'edit-plugin_' . $file, 'nonce', false ) && isset( $_POST['newcontent'] ) ) {

			$posted_content = wp_unslash( $_POST['newcontent'] );

		wp_redirect( add_query_arg(

			array(

				'a' => 1, // This means "success" for some reason.

				'plugin' => $plugin,

				'file' => $file,

			),

			admin_url( 'plugin-editor.php' )

		) );

}

	$editable_extensions = wp_get_plugin_file_editable_extensions( $plugin );

		'<p>' . __('Choose a plugin to edit from the dropdown menu and click the Select button. Click once on any file name to load it in the editor, and make your changes. Don&#8217;t forget to save your changes (Update File) when you&#8217;re finished.') . '</p>' .

		'<p id="editor-keyboard-trap-help-1">' . __( 'When using a keyboard to navigate:' ) . '</p>' .

		'<ul>' .

		'<li id="editor-keyboard-trap-help-2">' . __( 'In the editing area, the Tab key enters a tab character.' ) . '</li>' .

		'<li id="editor-keyboard-trap-help-3">' . __( 'To move away from this area, press the Esc key followed by the Tab key.' ) . '</li>' .

		'<li id="editor-keyboard-trap-help-4">' . __( 'Screen reader users: when in forms mode, you may need to press the Esc key twice.' ) . '</li>' .

		'</ul>' .

		'<p>' . __('<a href="https://codex.wordpress.org/Plugins_Editor_Screen">Documentation on Editing Plugins</a>') . '</p>' .

		'<p>' . __('<a href="https://codex.wordpress.org/Writing_a_Plugin">Documentation on Writing Plugins</a>') . '</p>' .

		'<p>' . __('<a href="https://wordpress.org/support/">Support Forums</a>') . '</p>'

	$settings = array(

		'codeEditor' => wp_enqueue_code_editor( array( 'file' => $real_file ) ),

	);

	wp_enqueue_script( 'wp-theme-plugin-editor' );

	wp_add_inline_script( 'wp-theme-plugin-editor', sprintf( 'jQuery( function( $ ) { wp.themePluginEditor.init( $( "#template" ), %s ); } )', wp_json_encode( $settings ) ) );

	wp_add_inline_script( 'wp-theme-plugin-editor', sprintf( 'wp.themePluginEditor.themeOrPlugin = "plugin";' ) );

	if ( ! empty( $posted_content ) ) {

		$content = $posted_content;

	} else {

		$content = file_get_contents( $real_file );

	}

<div class="wrap">

<h1><?php echo esc_html( $title ); ?></h1>

<?php if ( isset( $_GET['a'] ) ) : ?>

	<div id="message" class="updated notice is-dismissible">

		<p><?php _e( 'File edited successfully.' ); ?></p>

	</div>

<?php elseif ( is_wp_error( $edit_error ) ) : ?>

	<div id="message" class="notice notice-error">

		<p><?php _e( 'There was an error while trying to update the file. You may need to fix something and try updating again.' ); ?></p>

		<pre><?php echo esc_html( $edit_error->get_error_message() ? $edit_error->get_error_message() : $edit_error->get_error_code() ); ?></pre>

	</div>

<h2>

	<?php

	if ( is_plugin_active( $plugin ) ) {

		if ( is_writeable( $real_file ) ) {

			/* translators: %s: plugin file name */

			echo sprintf( __( 'Editing %s (active)' ), '<strong>' . esc_html( $file ) . '</strong>' );

		} else {

			/* translators: %s: plugin file name */

			echo sprintf( __( 'Browsing %s (active)' ), '<strong>' . esc_html( $file ) . '</strong>' );

		}

		if ( is_writeable( $real_file ) ) {

			/* translators: %s: plugin file name */

			echo sprintf( __( 'Editing %s (inactive)' ), '<strong>' . esc_html( $file ) . '</strong>' );

		} else {

			/* translators: %s: plugin file name */

			echo sprintf( __( 'Browsing %s (inactive)' ), '<strong>' . esc_html( $file ) . '</strong>' );

		}

	?>

</h2>

	<form action="plugin-editor.php" method="get">

		<?php submit_button( __( 'Select' ), '', 'Submit', false ); ?>

	<h2 id="plugin-files-label"><?php _e( 'Plugin Files' ); ?></h2>

	<?php

	$plugin_editable_files = array();

	foreach ( $plugin_files as $plugin_file ) {

		if ( preg_match('/\.([^.]+)$/', $plugin_file, $matches ) && in_array( $matches[1], $editable_extensions ) ) {

			$plugin_editable_files[] = $plugin_file;

		}

	?>

	<ul role="tree" aria-labelledby="plugin-files-label">

	<li role="treeitem" tabindex="-1" aria-expanded="true" aria-level="1" aria-posinset="1" aria-setsize="1">

		<ul role="group">

			<?php wp_print_plugin_file_tree( wp_make_plugin_file_tree( $plugin_editable_files ) ); ?>

		</ul>

	<?php wp_nonce_field( 'edit-plugin_' . $file, 'nonce' ); ?>

		<div>

			<label for="newcontent" id="theme-plugin-editor-label"><?php _e( 'Selected file content:' ); ?></label>

			<textarea cols="70" rows="25" name="newcontent" id="newcontent" aria-describedby="editor-keyboard-trap-help-1 editor-keyboard-trap-help-2 editor-keyboard-trap-help-3 editor-keyboard-trap-help-4"><?php echo $content; ?></textarea>

			<input type="hidden" name="action" value="update" />

			<input type="hidden" name="file" value="<?php echo esc_attr( $file ); ?>" />

			<input type="hidden" name="plugin" value="<?php echo esc_attr( $plugin ); ?>" />

		<div id="documentation" class="hide-if-no-js"><label for="docs-list"><?php _e('Documentation:') ?></label> <?php echo $docs_select ?> <input type="button" class="button" value="<?php esc_attr_e( 'Look Up' ) ?> " onclick="if ( '' != jQuery('#docs-list').val() ) { window.open( 'https://api.wordpress.org/core/handbook/1.0/?function=' + escape( jQuery( '#docs-list' ).val() ) + '&amp;locale=<?php echo urlencode( get_user_locale() ) ?>&amp;version=<?php echo urlencode( get_bloginfo( 'version' ) ) ?>&amp;redirect=true'); }" /></div>

	<div class="editor-notices">

		<?php if ( in_array( $plugin, (array) get_option( 'active_plugins', array() ) ) ) { ?>

			<div class="notice notice-warning inline active-plugin-edit-warning">

			<p><?php _e('<strong>Warning:</strong> Making changes to active plugins is not recommended.'); ?></p>

		</div>

		<?php } ?>

	</div>

		<?php submit_button( __( 'Update File' ), 'primary', 'submit', false ); ?>

		<span class="spinner"></span>

<?php wp_print_file_editor_templates(); ?>

$dismissed_pointers = explode( ',', (string) get_user_meta( get_current_user_id(), 'dismissed_wp_pointers', true ) );

if ( ! in_array( 'plugin_editor_notice', $dismissed_pointers, true ) ) :

	// Get a back URL

	$referer = wp_get_referer();

	$excluded_referer_basenames = array( 'plugin-editor.php', 'wp-login.php' );

	if ( $referer && ! in_array( basename( parse_url( $referer, PHP_URL_PATH ) ), $excluded_referer_basenames, true ) ) {

		$return_url = $referer;

	} else {

		$return_url = admin_url( '/' );

	}

?>

<div id="file-editor-warning" class="notification-dialog-wrap file-editor-warning hide-if-no-js hidden">

	<div class="notification-dialog-background"></div>

	<div class="notification-dialog">

		<div class="file-editor-warning-content">

			<div class="file-editor-warning-message">

				<h1><?php _e( 'Heads up!' ); ?></h1>

				<p><?php _e( 'You appear to be making direct edits to your plugin in the WordPress dashboard. We recommend that you don&#8217;t! Editing plugins directly may introduce incompatibilities that break your site and your changes may be lost in future updates.' ); ?></p>

				<p><?php _e( 'If you absolutely have to make direct edits to this plugin, use a file manager to create a copy with a new name and hang on to the original. That way, you can re-enable a functional version if something goes wrong.' ); ?></p>

			</div>

			<p>

				<a class="button file-editor-warning-go-back" href="<?php echo esc_url( $return_url ); ?>"><?php _e( 'Go back' ); ?></a>

				<button type="button" class="file-editor-warning-dismiss button button-primary"><?php _e( 'I understand' ); ?></button>

			</p>

		</div>

	</div>

</div>

<?php

endif; // editor warning notice