Get Plugin Data in WordPress

plugin-root-file.php

<?php
// check if is admin
if ( is_admin() ) {
    // check if get_plugin_data() function exists
	if( ! function_exists('get_plugin_data') ){
        // include the plugin file from wordpress core
		require_once( ABSPATH . 'wp-admin/includes/plugin.php' );
	}
    // get plugin data.
	$plugin_data = get_plugin_data( __FILE__, false,false );

    // print plugin data
	echo "<pre>";
	print_r( $plugin_data );
	echo "</pre>";
}