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First you need to upload the file to the server then read the file and insert it to MySQL. For uploading a file we need a form for the user to enter the file name or browse their computer and select a file. It's to restrict the size of files. If it's larger than zero byte then we can assume that the file is uploaded successfully.
I saved several images in my database. Our next job is to read the content of this file and insert the content to database. To see a working example click here. That's it now you can upload your files to MySQL. Now it's time to write the script to download those files. These were not needed for uploading the files but is needed for downloading the files from the database.
Using addslashes to the file name is also recommended because you never know what the file name would be. Always make sure that you use addslashes to escape the content. Always check to see if the file was successfully uploaded by looking at the file size. You should not assume that the file was uploaded successfully to the server.
The download page list the file names stored in database. The names are printed as a url. The url would look like download. After sending the file the script stops executing by calling exit.
Anyway it's a good manner telling how big the file is. If you don't send this header the browser will try to save the file using the script's name download. They are: We can use this id to identify which files to get from the database.
Tells the browser to save this downloaded file under the specified name. That way anyone who download the file can predict how long the download will take. Some browser need it to be able to download the file properly. As for the error message above it happens because i "accidentally" add one space right after the PHP closing tag?
For that i have written a separate code which is given below download2. When sending headers the most common error message you will see is something like this: Cannot modify header information.
I'm still new to PHP. So if you see this error message when you're sending a header just make sure you don't have any data sent before calling header. For this i have to taken realted id to whom i click "view" and sent to another php file.
Check the file mentioned in the error message and go to the line number specified Recent Comments By: You have an exit statement before the code that downloads the file.. Chris Posted on Flag for inappropriate content.
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Ask Question. How to do that? Raja Mandal Raja Mandal 1. You can use html2pdf it's simple and easy to use. Do you want the data formatted as per the input form or as a database table?
You should make use of PDF creator libraries like: