CODEWITHSUNDEEP
php
Chris
Chris

Reputation: 1129

PHP Cutting the last few characters of a filename

I am retrieving file locations and names from a database, the are in this format

http://domain.com/subdir/etc/etc/etc/picimage-niceone_Main-150x150.jpg

They are all dynamic, so there are hundreds of them all with different names, but one thing is constant is the last - and then the file dimensions.

What i need to do is strip everything after the last - so it turns into the following.

http://domain.com/subdir/etc/etc/etc/picimage-niceone_Main.jpg

Any help would be awesome.

Cheers,

Upvotes: 0

Views: 111

Answers (3)

Alnitak
Alnitak

Reputation: 339816

Look at preg_replace():

$url = preg_replace('/\-(\d+)x(\d+)(\.\w+)$/', '$3', $url);

i.e. find a hyphen, a number, an 'x', a number, and an extension, and replace the whole thing with just the extension.

Alternatively, if you actually want to know what those width and height values were (for example to populate <IMG> tag attributes:

$url = 'http://domain.com/subdir/etc/etc/etc/picimage-niceone_Main-150x150.jpg';
$regex = '/(.*?)-(\d+)x(\d+)(\.\w+)$/';
if (preg_match($regex, $url, $matches)) {
  $width = $matches[2];
  $height = $matches[3];
  $url = $matches[1] . $matches[4];
}

Upvotes: 1

Juan Cort&#233;s
Juan Cort&#233;s

Reputation: 21082

$stringName = "picimage-niceone_Main-150x150.jpg";
$newName = substr($stringName,0,strrpos($stringName,"-")).substr($stringName,-4);

This will remove anything between the last - and the file extension.

Upvotes: 1

cdhowie
cdhowie

Reputation: 169018

$newname = preg_replace("/-[^-.]*(\\.[a-zA-Z]*)$/", '$1', $oldname);

Upvotes: 0

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