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cutting the filename and let the extension stay.


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#1 bilis_money

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Posted 05 July 2006 - 07:59 AM

yo  :o

i know this is easy.

Could you show me the snippet of codes for both
none REGEX and REGEX alike of this scenario.

let say i want to get the extension filename of
'myfile.gif' and not the filename itself but merely the extension
--> .gif.

what is your style? please show me this on none REGEX and REGEX coding
style.

thanks in advance.



#2 Zane

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Posted 05 July 2006 - 08:19 AM

$filepath = "somefilename.jpgd"
//None Regex way
$extension = substr($filepath, (strrpos($filepath,".") * -1));
echo $extension;
//The Regex way
if(ereg(".*(\..*)", $filepath, $extension) {
  echo $extension[1];
}

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#3 Orio

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Posted 05 July 2006 - 09:05 AM

@zanus-
I have a little problem with your Non-Regex way.
Let's say the file is called: hello.zanus.jpg it is possible, right?
You script will return zanus.jpg which is no extension...
So I think explode is the best here:
 
//$filename="hello.to.everyone.php"
$arr=explode(".",$filename);
$values=count($arr);
echo $arr[$values-1]; //will echo "php"
 
Basicly this splits the filename to parts (stores in a array) where it finds a dot (in our case it's 0=>hello, 1=>to, 2=>everyone, 3=>php). Then we check how many values there are (with count()) and then echo the last item in the array.

Orio.
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#4 slipperyfish

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Posted 05 July 2006 - 09:16 AM

I wrote a fairly simple procedure to work it out:

$file = "test.jpg";
$extension = substr(strrchr($file, "."), 0);

that returns ".jpg". It's not ideal, but it works fine. And if you have an extension with 4 digits (eg jpeg) it still allows you to run IFs or/we you want on it.

#5 bilis_money

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Posted 05 July 2006 - 11:22 AM

reply i guess my style is a little longer than you are guys.

thanks for the shorter codes.





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