File ext when there is more than one period

[NevadaJones]

What I want to do is pull off the file extension of a file. This works most of the time, but not if a file has more than one period.

$filename_ext = strchr($filename, ".");

How can I get the extension of a file like:

$filename = "this.has.more.than.one.period.ext";


Sam
;

 

[sleipnir214]

I'd probably just explode the filename on the dots and take the last element:

<?php
$filename = "this.has.more.than.one.period.ext";
print end (explode ('.', $filename));
?>

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[NevadaJones]

Thanks, That works for me.

Sam
;

 

[thedaver]

Just thought I'd make a note for your code's sake that filenames are NOT obligated to have an extension... Hope you've coded for that possibility!
D.

D.E.R. Management - IT Project Management Consulting

http://www.dermanagement.com/

 

[Stretchwickster]

You can also use the strrchr function to find the last occurrence of a character in a string and, seeing as file extensions (when they're present) follow the last period in a filename string, strrchr seems well suited to this application.

Here's some examples with and without the leading period:

<?php
  $filename = "this.has.more.than.one.period.ext";
  print strrchr($filename, '.');
?>

<?php
  $filename = "this.has.more.than.one.period.ext";
  $file_ext = strrchr($filename, '.');
  // use substr to omit first character i.e. the period
  print substr($file_ext, 1);
?>

As with anything in programming, there are always many ways to skin a cat!

Clive

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