if statement error

[DuaneCawaling]

$username = "root"; 
$password = "duane";
$hostname = "localhost";

$con = mysql_connect($hostname, $username, $password) or die("Unable to connect to MySQL");
echo "Connected to MySQL<br>";
$selected = mysql_select_db("dummy") or die ("No existing database".mysql_error());

$number = "$_POST[number]";
$keyword = $message[2];

if($keyword == "balance"||"BALANCE"){
	$reply = mysql_query("SELECT * from profile where contact = '$number'");
	$info = mysql_fetch_array($reply);
	echo "Your remaining balance is: ".$info['credit']."<br />";
}else
if ($keyword == "menu"||"MENU")	{
	$data = mysql_query("SELECT * from food") or die (mysql_error());
	while ($row = mysql_fetch_array($data)) {
  			echo "<strong>Item(</strong>".$row{'menu_tag'}."<strong>):</strong> ".$row{'item'}
		." --<em>price</em>:".$row{'price'}."<br>";//display the results
	}
}else
if ($keyword == "snacks"||"SNACKS")	{
	$data = mysql_query("SELECT * from inventory") or die (mysql_error());
	while ($row = mysql_fetch_array($data)) {
		echo "<strong>Item(</strong>".$row{'tag'}."<strong>):</strong> ".$row{'item'}
		." --<em>price</em>:".$row{'price'}."<br>";//display the results
	}
}

 

there are no syntax errors. my problem is that it keeps on entering the FIRST if statement even if the $keyword is not "balance" @@

[KevinM1]

You can't do ifs like that. It needs to be:

 

if ($keyword == "balance" || $keyword == "BALANCE")

That said, rather than check for case (what if the keyword comes back as "BaLAnCe"?), just run it through strtolower.

 

Also, where does $message come from?

[teynon]

To further explain KevinM1's answer. An if statement uses boolean logic. Here is an example of some boolean logic:

true AND false = false
true OR false = true
(true or false) && true = true

 

In your if statement, you are passing two individual booleans in that statement.

if($keyword == "balance"||"BALANCE")
// breaks down into:
if (($keyword == "balance") || "BALANCE")

 

if $keyword == "balance" works as you expect, but the second part is just checking a static string's value. PHP considers a non empty string to be TRUE in boolean logic, so what you've actually written is this:

if ($keywords == "balance" || true)

 

So as KevinM1 said, you need to change all your if statements to be 

if ($keyword == "monkeys" || $keyword == "MONKEYS") {

 

You could also try something like this:

if (strtolower($keyword) == "monkeys")

 

This would make matching the string case insensitive.

[DuaneCawaling]

thanks for the replies. i was thinking so hard what was my problem..it was just the wrong use of or sign..thank you again,

 

really now!a function for making strings to lower case..that will make things more easy  

[haku]

if (strtolower($keyword) == "snacks") {

etc. Edited March 4, 2013 by haku