[Resolved] Trimming Strings from the left to a specified char

[cbj4074]

Hi everyone,

I'm trying to find a way to extract just the extension from a local file. Basically, I have a bunch of files I want authenticated users to be able to download. As it is, I have the save dialog box pop up for every file by specifying an unrecognized file type as the content type. This works great.

However, I want PDF files to load in the browser window instead of prompt with the save dialog. So, basically, I need to know if the file is a PDF file or not.

So, say the file is test.file.pdf. How would I go about trimming the string from the left to the last period?

I can't find anything on this in the PHP manual.

Thanks =)

[LordShryku]

[man]strrchr[/man]

[TTT]

$str = "da.pdf";
if(substr($str,strpos($str,".")+1,strlen($str)-strpos($str,".")) == "pdf") {
  // is pdf
}

// or
$str = "da.pdf";
$str = explode(".",$str);
if($str[count($str)-1] == "pdf") {
 // is pdf
} 

[cbj4074]

Ahh, awesome, thanks a lot you two. Man, I don't know how I missed that one.