<?php
		include("./conn.php");
		$s=mysqli_query($db, "SELECT * FROM `rv`");
		while ($r=mysqli_fetch_row($s))
		{
			$sha=sha1($r[2]);
			mysqli_query($db, "UPDATE `rv` SET `h` = '".$sha."' WHERE `rv`.`i` = ".$r[0].";");
		}
?>