I usually tweak this script available on sourceforge to make it more useful. I will list the main differences here (see changelog.txt for detailed information):
- Original script “percentage encodes” the URL after converting it into the absolute URL. For example: “http://www.google.com/search?q=hello” is converted to “http://www.google.com/search?q%3Dhello”. Due to this the query string becomes invalid. This issue has been corrected in v1.4 (I know that the encoding might be desirable sometimes, if so use v1.2 of the script available on sourceforge.net)
Recently, I was working on a project for which I required to convert the relative URLs to their Absolute URLs. For those who come from a non technical background, we have absolute URL of a file on a site as www.example.com/image.jpg but mostly it is written as only “image.jpg” on the webpages. (Why?, just google ‘advantages of relative URLs’, I am feeling lazy right now.) Now the web server automatically searches for the ‘image.jpg’ in the current directory of the website. But if you want the file, you must have the whole absolute URL to download it.
The RFC URL specification defines an “absolutize” algorithm for combining an absolute base URL with a relative URL to create a new absolute URL. This algorithm was already implemented and I found the PHP script for the algorithm at nadeausoftware.com. You can also find the article explaining each and every step of the code here.
I have also created a project UrlToAbsolute at sourceforge, so that the work gets archived. As the script was released under BSD License, it was pretty easy as I did not have to seek permissions from the Author. Here is the link to the project absoluteurl.
Usage Instructions
Extract the script (url_to_absolute.php) into your web directory, include it into your current php file using:
then, you can convert the relative url to absolute url by calling:
It return false on failure, otherwise returns the absolute url. If the $relativeUrl is a valid absolute url, it is returned without any modification.
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That’s exactly what I need. Thanks,
Hi there Nitin I’m testing this class as the script I’m puting together needs the ab/path to function, and wondering if you have any examples, thanks
hi,
as mentioned, it is very simple to use this function. just include it in your current file and call the function as mentioned above. You can look at the tutorial at nadeausoftware.com or the project i am currently using it in, feedapi imagegrabber.
regards,