Mulitple conditions in IF statement

[eddy556]

Hi, I need help on how to use multiple conditions within an IF statement.

 

Through research I have found that you and test if both conditions are true using && but I need to test for OR.

 

I was thinking it should look something like: 

if($filetype != ".mp3" || $filetype != ".MP3")

and this doesn't throw an error.  I'm sure its simple.

 

Thanks!

[.josh]

if(($filetype != ".mp3") || ($filetype != ".MP3"))

 

if that doesn't work then I would suggest echoing $filetype to see if it's holding what you expect it to be holding.

[PFMaBiSmAd]

Rather than test for all possible "cases" (.mp3, .Mp3, .mP3, .MP3 could all be entered), I recommend converting to lowercase using strtolower() and doing one test that would match all possible letter cases.

[deadonarrival]

if (filetype isn't mp3 or filetype isn't MP3)

 

Apart from anything else, that would ALWAYS run the block. You may aswell just run the if block.

 

I'm finding it hard to put this into words, it's an odd idea, but you're basically saying

if ((number is not one) OR (number is not 2)) do this

 

If we input 1

if ((number is not one FALSE) or (number is not two TRUE)) do this

input 2

if ((number is not one TRUE) or (number is not two FALSE)) do this

input anything apart from one or two

if ((number is not one TRUE) or (number is not two TRUE)) do this

 

whatever you do, you're saying

if TRUE or FALSE = TRUE do this

if FALSE or TRUE = TRUE do this

if TRUE or TRUE = TRUE do this

 

Your if statement cannot return false, so the block will always return true.

 

I think you actually want

 

$filetype = strtolower($filetype);
if($filetype == ".mp3")
{
#Do this if it IS an mp3
}
else
{
#Do this if it IS NOT an mp3
}

 

I hope this clarifies

[eddy556]

In response to that last post the IF statement CAN return false.  Say a user attempts to upload a .txt file.....?

 

I'm going to use the strtolower route

 

 

Thanks!