[m4karow]

Код:

new string[256]; 
format(string, 128, "SELECT * FROM `accounts` WHERE Username = '%e'", PlayerName(playerid)); 
mysql_tquery(zMySQL, string, "OnAccountCheck", "d", "playerid);

Код:

public OnAccountCheck(playerid)
{
if(cache_num_rows()) 
{ 
    //My Register Code 
} 
else 
{ 
    //My Login Code 
}  
}