This is my Template for a wp-config file.

wp-config-local-sample.php

<?php
################################################################################
// Custom WordPress Local Config
// Use only for Development
// https://gist.github.com/bhubbard/8428583
################################################################################

/* Database Connection Info */
define('DB_NAME', '');
define('DB_USER', '');
define('DB_PASSWORD', '');
define('DB_HOST', 'localhost');

/* Disable WordPress Cache */
define( 'WP_CACHE', false );

/* WordPress debug mode for developers. */
define( 'WP_DEBUG',         true );
define( 'WP_DEBUG_LOG',     true );
define( 'WP_DEBUG_DISPLAY', true );
define( 'SCRIPT_DEBUG',     true );
define( 'SAVEQUERIES',      true );
define( 'JETPACK_DEV_DEBUG', true);

/*
################################################################################
 My Standard Dev Plugins (install using wp-cli)
################################################################################

# Install Standard Plugins
wp plugin install wordpress-seo --activate
wp plugin install imforza-news --activate
wp plugin install testimonials-by-woothemes
wp plugin install jetpack
wp plugin install google-analytics-for-wordpress
 
# Install Dev Plugins (Activated)
wp plugin install developer --activate
wp plugin install debug-bar --activate
wp plugin install debug-bar-extender --activate
wp plugin install debug-bar-cron --activate
wp plugin install debug-bar-transients --activate
wp plugin install debug-bar-actions-and-filters-addon --activate
wp plugin install debug-bar-console --activate
wp plugin install debug-bar-constants --activate
wp plugin install user-switching --activate
wp plugin install log-deprecated-notices --activate
wp plugin install log-viewer --activate
wp plugin install rewrite-rules-inspector --activate
wp plugin install monster-widget --activate
wp plugin install regenerate-thumbnails --activate
wp plugin install helpful-information --activate
wp plugin install deprecation-checker --activate
wp plugin install wordpress-importer --activate
wp plugin install simply-show-ids --activate
 
# Install Dev Plugins (Deactivated)
wp plugin install rtl-tester
wp plugin install piglatin
wp plugin install theme-check
wp plugin install theme-mentor

*/

wp-config.php

<?php
################################################################################
// Custom WP-CONFIG Template.
// https://gist.github.com/bhubbard/8428583
################################################################################

################################################################################
// Database
################################################################################
/* MySQL Quick Reference */
// DB External Hostname:
// PHP MyAdmin URL:

/* MySQL Settings with Local Config Check */
if ( file_exists( dirname( __FILE__ ) . '/wp-config-local.php' ) ) {
  
  include( dirname( __FILE__ ) . '/wp-config-local.php' );
  define( 'WP_LOCAL_DEV', true ); // Define Local Dev
  
} else {
  
  define( 'DB_NAME',     'database_name_here' );
  define( 'DB_USER',     'username_here' );
  define( 'DB_PASSWORD', 'password_here' );
  define( 'DB_HOST',     'localhost' );
  define( 'DB_CHARSET',  'utf8' );
  
}

/* MySQL database table prefix. */
$table_prefix = 'wp_';

/* DB Repair - /wp-admin/maint/repair.php */
define('WP_ALLOW_REPAIR', false);

################################################################################
// Security
################################################################################
/* Authentication Unique Keys and Salts. */
/* https://api.wordpress.org/secret-key/1.1/salt/ */
define( 'AUTH_KEY',         'put your unique phrase here' );
define( 'SECURE_AUTH_KEY',  'put your unique phrase here' );
define( 'LOGGED_IN_KEY',    'put your unique phrase here' );
define( 'NONCE_KEY',        'put your unique phrase here' );
define( 'AUTH_SALT',        'put your unique phrase here' );
define( 'SECURE_AUTH_SALT', 'put your unique phrase here' );
define( 'LOGGED_IN_SALT',   'put your unique phrase here' );
define( 'NONCE_SALT',       'put your unique phrase here' );

/* Disallow unfiltered_html for all users, even admins and super admins */
// define( 'DISALLOW_UNFILTERED_HTML', false );

// define('FORCE_SSL_LOGIN',true); // Force SSL for WordPress Login Page
// define('FORCE_SSL_ADMIN',true); // Force SSL for WordPress Admin

// define( 'JETPACK_CLIENT__HTTPS', 'NEVER' ); // Force Jetpack to not use HTTPS

// define('WP_HTTP_BLOCK_EXTERNAL', true); // Block External Connections
// define (‘WP_ACCESSIBLE_HOSTS’, ‘api.wordpress.org, akismet.com, etc’); // Whitelist for External Connections

// define( 'ALLOW_UNFILTERED_UPLOADS', true );

/* Disable Plugin & Editor Access */
define('DISALLOW_FILE_EDIT', true);

/* Disable Plugin & Theme Update/Install */
define('DISALLOW_FILE_MODS', true);

################################################################################
// General Settings
################################################################################

/* Custom WordPress URLS. */
// define( 'WP_HOME',        'http://domain.com' ); 
// define( 'WP_SITEURL',     'http://domain.com' );
// define( 'WP_CONTENT_URL', 'http://domain.com/wp-content' );
// define( 'UPLOADS',        'http://domain.com/wp-contents/uploads' );
// define( 'WP_PLUGIN_URL',  'http://domain.com/wp-content/plugins' );
// define( 'COOKIE_DOMAIN',  'http://domain.com' );
// define('DOMAIN_CURRENT_SITE', 'blog.domain.com' );
// define( 'WP_DEFAULT_THEME', 'default-theme-folder-name' );

/* WordPress Localized Language. */
define( 'WPLANG', '' );

/* Specify maximum number of Revisions. */
define( 'WP_POST_REVISIONS', '5' );

/* Media Trash. */
define( 'MEDIA_TRASH', true );

/* Trash Days. */
define( 'EMPTY_TRASH_DAYS', '15' );

/* CRON */
define( 'DISABLE_WP_CRON',      'false' );
define( 'ALTERNATE_WP_CRON',    'false' );
// define('WP_CRON_LOCK_TIMEOUT',60);

/* WordPress debug mode for developers. */
define( 'WP_DEBUG',         false );
define( 'WP_DEBUG_LOG',     false );
define( 'WP_DEBUG_DISPLAY', false );
define( 'SCRIPT_DEBUG',     false );
define( 'SAVEQUERIES',      false );
define( 'JETPACK_DEV_DEBUG', false);

// define('RELOCATE',true); // Used to Update Site URLS

################################################################################
// Plugin Settings
################################################################################

/* Gravity Forms License Key */
// define("GF_LICENSE_KEY", "YOUR-LICENSE-KEY-HERE"); 

/* Local SEO License Key */
// define("WPSEO_LOCAL_LICENSE", "YOUR-LICENSE-KEY-HERE");

/* Video SEO License Key */
// define("WPSEO_VIDEO_LICENSE", "YOUR-LICENSE-KEY-HERE");

/* Jetpack - WordPress Connect */
// define( 'WPCOM_API_KEY', 'YOUR-API-KEY-HERE' );
// define( 'WPCC_MATCH_BY_EMAIL', false );
// define( 'WPCC_NEW_USER_OVERRIDE', true );

################################################################################
// Performance & Updates
################################################################################

/* PHP Memory */
define( 'WP_MEMORY_LIMIT', '64' );
// define( 'WP_MAX_MEMORY_LIMIT', '256' );

/* WordPress Cache */
define( 'WP_CACHE', true );

// WP Super Cache
// define( 'WPCACHEHOME', 'PATH to SUPER CACHE' ); //Added by WP-Cache Manager

/* Compression */
define( 'COMPRESS_CSS',        true );
define( 'COMPRESS_SCRIPTS',    true );
define( 'CONCATENATE_SCRIPTS', true );
define( 'ENFORCE_GZIP',        true );

/* Updates */
define( 'WP_AUTO_UPDATE_CORE', true );
// define( 'AUTOMATIC_UPDATER_DISABLED', true );
// add_filter( 'auto_update_plugin', '__return_true' );
// add_filter( 'auto_update_theme', '__return_true' );

// define('FS_METHOD', 'direct'); // Force Direct Install

################################################################################
// DO NOT EDIT
################################################################################
/* Absolute path to the WordPress directory. */
if ( !defined('ABSPATH') )
	define('ABSPATH', dirname(__FILE__) . '/');

/* Sets up WordPress vars and included files. */
require_once(ABSPATH . 'wp-settings.php');