Hope this save some hours of research to anyone. With PHP 7. NB: This function expects the full server-related pathname to work. Note on openspecies entry excellent btw, thanks! Replace the extensions net com PHP under a web server i. This results in files that appear to NOT exist on a symbolic link, even though they are very much in existance and indeed are readable by the web server.
I wrote this little handy function to check if an image exists in a directory, and if so, return a filename which doesnt exists e. It works fine at my place. RE: How to check if network file exists what errors are you getting at fopen? Does IIS have all sorts of places to set security that you need to figure out? I would actually guess you should take this question over to the IIS forum and get yourself an answer in a post or two.
However a local drive can be "shared" multiple times with different names and each share, as well as the underlying local directory, can have different ACL's. Another thing: it is always better to set permissions locally i. Termserv into the box and change them locally. I guess some bright spark has written one but i have not come across it. RE: How to check if network file exists I actually meant whoami not whois I change permissions from the original box as a practice Nothing fancy going on in Group Policy I tried the explicit code declaration, using "r" and "rb", and same error.
I'm hesitant to mess with permissions as this script is on the production intranet box. Collectives on Stack Overflow. Learn more. How can one check to see if a remote file exists using PHP? Ask Question. Asked 12 years, 7 months ago. Active 5 months ago. Viewed k times. Oliver Oliver. I think you can use CURL and check its return codes. But if it's the speed that is a problem, just do it offline and cache.
Yes, but I would still recommend using an offline script run from cron that parses the list of websites, checks if they've got favicons and cache that data for the frontend. For replacing a broken image with a placeholder image in browser, kindly consider a client-side solution using onerror of image e. Possible duplicate of PHP: How to check if image file exists? Add a comment. Active Oldest Votes. Ramon Poca Ramon Poca 1, 1 1 gold badge 10 10 silver badges 19 19 bronze badges.
Lyth 3XX retcodes aren't an error, but a redirection. Tom Haigh Tom Haigh Justin Johnson 30k 7 7 gold badges 61 61 silver badges 87 87 bronze badges. Is there what are the drawbacks for this solution against the CURL one? This approach doesnt work if the server makes a redirection whenever an image or file doesnt exist.
Mala Mala The syntax make a bit confusion. Pedro Lobito Pedro Lobito 82k 28 28 gold badges silver badges bronze badges.
Find centralized, trusted content and collaborate around the technologies you use most. Connect and share knowledge within a single location that is structured and easy to search. Even if the image exists or doesn't exist, it always says "The file exists". I'm not sure why its not working A thing you have to understand first: you have no files.
So, you have to request an unexisting file using your browser and see the response code. If the file is on your local domain, you don't need to put the full URL. Only the path to the file. If the file is in a different directory, then you need to preface the path with ". Often times the ". Note: Check also this stackoverflow question for more information on this topic. I'm going an extra mile here :. Because this code would no need much maintenance and pretty solid, I would write it with as shorthand if statement:.
You can get cURL to only give you the headers, and not the body, which might make it faster. A bad domain could always take a while because you will be waiting for the request to time-out; you could probably change the timeout length using cURL.
If path to your image is relative to the application root it is better to use something like this:. I think it is good idea to create something like library to check image existence applicable for different situations. Above lots of great answers you can use to solve this task. Here is one function that I use to check any kind of URL.
It will check response code is URL exists or not.
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