Remove .jpg from string.jpg

[PeteM]

What's the easiest way of removing the characters '.jpg' from the end of a file name?

Cheers, Pete

[eelixduppy]

Something like this:

$string = "image.jpg";
$new_string = [url=http://us2.php.net/manual/en/function.str-replace.php]str_replace[/url](".jpg","",$string);
echo $new_string;

Good luck!

[RonPK]

$filename = preg_replace("/\.jpg$/i", "", $filename);

[RonPK]

A brief comparison of str_replace and preg_replace:

* with str_replace the position of the substring within the string cannot be taken into account. So if the filename is something odd like "foo.jpgbar.doc", using str_replace as in eelixduppy's example would result in "foobar.doc".

* preg_replace as used in the other example does not have that disadvantage. But it does use a regular expression, and matching such patterns requires more server resources. Hardly noticeable, but present.

Conclusion: if you're sure that there will not be weird filenames as "foo.jpgbar.doc", use str_replace. Otherwise, use preg_replace.

[eelixduppy]

Nice, RonPK. I wasn't thinking along those lines. Glad you got my back ;)

[PeteM]

Cheers guys, it's been a long week!

[eelixduppy]

I discovered this based on the topic of another thread:

$string = "image.jpg";
$new_string = [url=http://us2.php.net/manual/en/function.basename.php]basename[/url]($string,".jpg");
echo $new_string;

I'm not sure if the suffix parameter is case-sensitive or not.

I guess you really do learn something new every day. In my case, more than just something, but many things. ;)

[RonPK]

> basename(string [,suffix])

LOL, I didn't know that one. That's PHP: there is a native method for almost every purpose one can think of ;)

[TerranRich]

That's why PHP is so lovely. :)

I must discover a new inbuilt function everyday.

[Psychopsia]

eelixduppy:

basename suffix is case-sensitive.

basename($string, ".jpg"); and basename($string, ".JPG"); are not the same. :)

[edited by: Psychopsia at 3:05 am (utc) on Sep. 23, 2006]