The third setting was required because my application itself lives in a secure folder - using authentication either Basic or Windows Integrated to identify the users. Also, remember to set "Execute Permissions" to "None" in the IIS management console, so that people can't upload a script file and then run it.
Other checks of the uploaded file are recommended as well but 'Execute None' is a good start. It should be POST. Default method of a form is GET. People have remarked that incorrect permissions on the upload directory may prevent photos or other files from uploading. Setting the Apache owner of the directory incorrectly will also prevent files from uploading -- I use a PHP script that creates a directory if it doesn't exist already before placing an uploaded file into it.
When the script creates the directory and then copies the uploaded file into the directory there is no problem because the owner of the file is whatever Apache is running as, typically "nobody". However, lets say that I've moved the site to a new server and have copied over existing file directories using FTP.
In this case the owner will have a different name from the Apache owner and files will not upload. This may help a newbie to file uploads.. If you are using -windows xp -iis 5 -php 5 If you keep getting permission errors on file uploads Make sure all accounts have write access to your upload directory, and read access if you wish to view these files later.
You might have to chmod the directory or file afterwards as well if you're still getting access errors. When uploading large images, I got a "Document contains no data" error when using Netscape and an error page when using Explorer. I found out that the following entry in the httpd. There is a nicer way of storing the data directly. By the way, I'd like to thank therebechips for his excellent advice on data chunks.
If your upload script is meant only for uploading images, you can use the image function getimagesize does not require the GD image library to make sure you're really getting an image and also filter image types.
Hence if the uploaded file exceeds the php max file size then php end abruptly without a trace of error that is it behaves like no file is uploaded and hence no error reported. Sure if uploading a file is optional for a form then a user who uploads larger file will get no error and still the form will be processed only without the file.
The method of using GET can't be used for optional uploads. Can't find help even in the bugs. Be careful with optional uploads. On a Microsoft platform utilizing IIS, you may run into a situation where, upon moving the uploaded file, anonymous web users can't access the content without being prompted to authenticate first It's also a good idea to set the Execute Permissions of the upload directory to NOT include Executables, for security reasons.
To accomplish this: -Open the IIS Manager -Browse to the relevant sites directory where the uploads will be placed -Right Click the folder and select Properties -In the Directory tab of the resulting dialog, set the Execute permissions to be None This took me a while to figure out, so I hope this helps save some other peoples time.
The files are definitely not kept in memory Nevertheless, some users reported a problem at a few MB, but that's not confirmed I got it Just add this enctype type attribute in your form it will not loose the quality of the uploaded data.
After that when user will click submit, store that filename with other form fields into database. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Collectives on Stack Overflow. Learn more. Asked 6 years, 10 months ago. Active 6 years, 10 months ago. Viewed 4k times. I want the user upload the file first then user presses the submit button this is the sequence that i want to achieve : user open addProduct.
Is the image uploaded successfully before user clicks the submit button? Since the file's upload field in our example is called "my-file", the following data is created:. The next step, if you want to only accept certain file types and sizes, would be to check out those factors and send out error messages accordingly.
In our example we'll move right along and determine whether or not the file has already been uploaded, since we do not want to over-write an existing file. It is safe to move the temporary file.
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