<?php
	header('Access-Control-Allow-Origin: *');
	date_default_timezone_set("Europe/Sofia");
	$em=$_GET["u"];
	$em="sbpr_".$em."";
	$em=sha1($em);
	include("./conn.php");
	$cnt=0;
	$chkusr=mysqli_query($db, "SELECT * FROM `usrs` WHERE `e` LIKE LOWER('".$em."')");
	while ($rchkusr=mysqli_fetch_row($chkusr))
	{
		$cnt++;
	}
	if ($cnt>0)
	{
		print("no");
	}
	else
	{
		print("ok");
	}
	mysqli_close($db538h9gh598g5h59hgr9ehe98hger89vjrisd89);
	mysqli_close($db);
?>