Дмитрий

INSERT INTO `db_extra`(`actor_id`, `name`, `rusname`, `mod_f1`, `mod_f2`,`videos`) 
VALUES (:model_id, :model_name, :model_rusname, :model_mod_f1, :model_mod_f2, :model_videos)
ON DUPLICATE KEY UPDATE 
`name` = VALUES(`name`), `rusname` = VALUES(`rusname`), `mod_f1` = VALUES(`mod_f1`), `mod_f2` = VALUES(`mod_f2`), `videos` = VALUES(`videos`)

<link href="styles.css?<?=md5_file(путь_к_файлу/styles.css)?>">
<link href="styles.css?<?=filemtime(путь_к_файлу/styles.css)?>">

$bg=mysqli_fetch_array($db->query("SELECT * FROM `background` WHERE `id`='1'"));
	$photo= 'data:image/' . 'gif'. ';base64,' . base64_encode($bg['background']);
	?>
<style>
	body{
		background-image: url("<?php echo $photo; ?>");
	}
</style>