mysqli_query ($db,"UPDATE `data_news` (`author`, `title`, `description`, `text`, `date`) VALUES ('$log_new_edit_code', '$tem_new_edit_code', '$des_new_edit_code' , '$full_new_edit_code', '$date_new_edit') WHERE `id` = ".$_GET['id']."") or die (mysqli_error($db)); 

ошибка
You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '(`author`, `title`, `description`, `text`, `date`) VALUES ('wefwe', 'efwefwefw',' at line 1

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UPDATE `data_news` SET `author` = '$log_new_edit_code', `title` = '$tem_new_edit_code'

и т.д.
и ещё надо WHERE указывать, чтоб конкретную запись обновить

mysqli_query ($db,"UPDATE `data_news` SET 
	`author` ='$log_new_edit_code', 
	`title` = '$tem_new_edit_code', 
	`description` = '$des_new_edit_code' 
	`text` = '$full_new_edit_code', 
	`date` =  '$date_new_edit'  
	WHERE `id` = ".$_GET['id']."") or die (mysqli_error($db)); 
	

пишет

You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '`text` = 'wefwefwefwefwefwfdg', `date` = '2013-Dec-Thu' WHERE `id` = 3' at line 5 :rolleyes:

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простите за лень просморел и нашел

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