[leong124]

You must use strcmp to compare strings...
Also you used WP_Hash wrongly...

pawn Код:

if(WP_Hash(inputtext) != tmp)//Wrong

pawn Код:

new buffer[129];
WP_Hash(buffer,sizeof(buffer),inputtext);
//.....
if(strcmp(buffer,tmp,false))//No need to be case insensitive because Whirlpool always outputs capital characters.This can make the check faster.
//...

Second,shouldn't the password be a string?

pawn Код:

new tmp;//:/
tmp = INI_Int(file, "Password");//Use the function to read string

Also, in the first post I found that you missed a closing brace.

pawn Код:

else if(dialogid == 2)//Using else if is faster,as it doesn't need to check the dialogid again when dialogid is 1.
    {
        new name[MAX_PLAYER_NAME], file[256], string[128];
        GetPlayerName(playerid,name,sizeof(name));
        format(file,sizeof(file),SERVER_USER_FILE, name);
        if(!response) return Kick(playerid);
        if(!strlen(inputtext)) return ShowPlayerDialog(playerid, 2, DIALOG_STYLE_INPUT, "You are registered", "Type your password below", "Login", "Quit");
        new tmp;
        tmp = INI_Int(file, "Password");
        if(WP_Hash(inputtext) = !tmp) {
            SendClientMessage(playerid,red,"ERROR: Wrong Password!");
            ShowPlayerDialog(playerid, 2, DIALOG_STYLE_INPUT, "You are registered", "Type your password below", "Login", "Quit");
        }
        else
        {
            PInfo[playerid][Logged] = 1;
            PInfo[playerid][Level] = INI_Int(file,"Level");
            SetPlayerScore(playerid,PInfo[playerid][Score]);
            GivePlayerMoney(playerid,PInfo[playerid][Cash]);
            SendClientMessage(playerid,limegreen,"You have successfully logged in!");
        }//Here
    }