remove extension from file

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How remove extension from string (only real extension!)

I am brand new to php and have a lot to learn! I'm experimenting with MiniGal Nano for our King County Iris Society website. It work quite well for our purposes with one small exception: the photo file name needs to be visible under the thumbnail. I've created a work around, but it shows the extension. I've found code samples of functions but have no idea how to incorporate them into the existing code. Any assistance would be greatly appreciated.

Example link: http://www.kcis.org/kcisphotogallery.php?dir=Iris.Japanese

Many thanks!

So in short, you want to remove the `.php` from the script name? — Supericy, Jan 07 '13 at 21:56
It depends on how you define "extension." Everything after the last dot? Everything after any dot? Etc. You can use a regular expression, do some trickery with substrings, etc. But you need to define logically what you're trying to remove. Consider file names like `somefile.jpeg` or `some.file.jpg` or even just `somefile` with no "extension" at all. — David, Jan 07 '13 at 21:59

Ascherer · Accepted Answer · 2015-05-08T18:28:42.273

30

There are a few ways to do it, but i think one of the quicker ways is the following

// $filename has the file name you have under the picture
$temp = explode('.', $filename);
$ext  = array_pop($temp);
$name = implode('.', $temp);

Another solution is this. I haven't tested it, but it looks like it should work for multiple periods in a filename

$name = substr($filename, 0, (strlen($filename))-(strlen(strrchr($filename, '.'))));

Also:

$info = pathinfo($filename);
$name = $info['filename'];
$ext  = $info['extension'];

// Shorter
$name = pathinfo($file, PATHINFO_FILENAME);

// Or in PHP 5.4
$name = pathinfo($filename)['filename'];

In all of these, $name contains the filename without the extension

edited May 08 '15 at 18:28

answered Jan 07 '13 at 21:58

Ascherer

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That's not bad, but won't help for `my.image.jpg` – Tom Walters Jan 07 '13 at 21:59
Added another one for that, was trying to find it when you replied haha – Ascherer Jan 07 '13 at 22:00
1

You can also pop an element of the array for the first one and then join the array again. – automaticoo Jan 07 '13 at 22:01
1

Thanks for pointing me to pathinfo['filename']! – hek2mgl Jan 07 '13 at 22:09
This code worked for me, once I figured out where to use it! $temp = explode( '.', $filename ); $ext = array_pop( $temp ); $name = implode( '.', $temp ); – user1848938 Jan 12 '13 at 02:51
Awesome to hear! For the record, i would suggest using the third method, as thats what it's for specifically – Ascherer Jan 12 '13 at 06:22

hek2mgl · Answer 2 · 2013-01-07T22:08:05.177

8

You can use pathinfo() for that.

<?php

// your file
$file = 'image.jpg';

$info = pathinfo($file);

// from PHP 5.2.0 :
$file_name = $info['filename'];

// before PHP 5.2.0 :
// $file_name =  basename($file,'.'.$info['extension']);

echo $file_name; // outputs 'image'

?>

edited Jan 07 '13 at 22:08

answered Jan 07 '13 at 22:00

hek2mgl

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It is more usual to only ask for what is needed from the `pathinfo()` function: `pathinfo($file, PATHINFO_FILENAME)` – salathe Jan 07 '13 at 23:53

score 4 · Answer 3 · answered Jan 07 '13 at 22:12

If you know for certain that the file extension is always going to be four characters long (e.g. ".jpg"), you can simply use substr() where you output the filename:

echo substr($filename, 0, -4);

If there's a chance that there will be images with more or less characters in the file extension (e.g. ".jpeg"), you will need to find out where the last period is. Since you're outputting the filename from the first character, that period's position can be used to indicate the number of characters you want to display:

$period_position = strrpos($filename, ".");
echo substr($filename, 0, $period_position);

For information about these functions, check out the PHP manual at http://php.net/substr and http://php.net/strrpos.

remove extension from file

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