为什么我的if语句会忽略我的条件？

Question

I'm programming a random event system that happens to users when logged in and I put the below piece of code into my include file.

$tehchance = mt_rand(1,15);
if ($tehchance == "1"){
$thewin = 10;
mysql_query("UPDATE members SET Points = Points + $thewin WHERE Handle = '$members[Handle]'");
}

I also have this for another event:

if ($tehchance == "2"){
$thekhwin = 5;
$thexpwin = 10;
mysql_query("UPDATE members SET Points = Points - $thekhwin WHERE Handle = '$members[Handle]'");
mysql_query("UPDATE members SET XP = XP + $thexpwin WHERE Handle = '$members[Handle]'");
}

The code will work but sometimes when $tehchance is equal to something else other than 1 or 2, it'll just ignore my conditions and update the members table without satisfying the if statement. From testing, it'll randomly add points or subtract points. I printed the random number from $tehchance and it still adds points even when it isn't equal to 1 or 2. Then sometimes it doesn't do anything to the members table. Really confused here.

Any ideas?

Answer 1

Try using an if-then-else and debug that.

$tehchance = mt_rand(1,15);

if ($tehchance === 1){
    echo 'doing 1';
    $thewin = 10;
    mysql_query("UPDATE members SET Points = Points + $thewin WHERE Handle = '$members[Handle]'");
} else if ($tehchance === 2){
    echo 'doing 2';
    $thekhwin = 5;
    $thexpwin = 10;
    mysql_query("UPDATE members SET Points = Points - $thekhwin WHERE Handle = '$members[Handle]'");
    mysql_query("UPDATE members SET XP = XP + $thexpwin WHERE Handle = '$members[Handle]'");
} else {
    echo 'doing nothing';
}