UPDATE query

<?php
$db= sqlite_open("blogdb.sdb");
$sql="UPDATE BlogItems SET (BlogItemTitle, BlogItemAuthor, BlogItemDate, BlogItemText)";
	$sql .= "VALUES ('";
	$sql .= $_POST["BlogItemTitle"] ."', '" ;
	$sql .= $_POST["BlogItemAuthor"] ."', '" ;
	$sql .= $_POST["BlogItemDate"] ."', '" ;
	$sql .= $_POST["BlogItemText"] ."');";
	//$result = sqlite_query($db, $sql) or die ("FOUT: " . sqlite_last_error());
	
	echo("<h2>Blogitem successfully updated</h2>");
	echo("The following data have been inserted:<br/><br/>\n");
	echo("Title: <b>".  $_POST["BlogItemTitle"] . "</b><br/>");
	echo("Author: <b>".  $_POST["BlogItemAuthor"] . "</b><br/>");
	echo("Date: <b>".  $_POST["BlogItemDate"] . "</b><br/>");
	echo("Text: <b>".  $_POST["BlogItemText"] . "</b><br/>");
	echo("<br/><a href=\"admin.php\">back to admin</a>");
?>

<?php
$db= sqlite_open("blogdb.sdb");
$sql="UPDATE BlogItems SET (BlogItemTitle, BlogItemAuthor, BlogItemDate, BlogItemText)";
	$sql .= "VALUES ('";
	$sql .= $_POST["BlogItemTitle"] ."', '" ;
	$sql .= $_POST["BlogItemAuthor"] ."', '" ;
	$sql .= $_POST["BlogItemDate"] ."', '" ;
	$sql .= $_POST["BlogItemText"] ."');";
	//$result = sqlite_query($db, $sql) or die ("FOUT: " . sqlite_last_error());
 
	echo("<h2>Blogitem successfully updated</h2>");
	echo("The following data have been inserted:<br/><br/>\n");
	echo("Title: <b>".  $_POST["BlogItemTitle"] . "</b><br/>");
	echo("Author: <b>".  $_POST["BlogItemAuthor"] . "</b><br/>");
	echo("Date: <b>".  $_POST["BlogItemDate"] . "</b><br/>");
	echo("Text: <b>".  $_POST["BlogItemText"] . "</b><br/>");
	echo("<br/><a href=\"admin.php\">back to admin</a>");
?>