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wp-config-add-define.php

<?php
/**
 * For developers: WordPress debugging mode.
 *
 * Change this to true to enable the display of notices during development.
 * It is strongly recommended that plugin and theme developers use WP_DEBUG
 * in their development environments.
 */
define('WP_DEBUG', false);
//define('WP_DEBUG', true);
//define('SAVEQUERIES', true);
//define('WP_DEBUG_DISPLAY', false);

// if not existence page redirect to
define( 'NOBLOGREDIRECT', 'url here' );
// For admin panel
define('WP_MAX_MEMORY_LIMIT', '512M');
// stop add plugin at admin panel and no edit
define('DISALLOW_FILE_MODS',true);