Php detect file download

 · I have a very simple and standard PHP force download script. How do I check if/when the download has completed in order to notify the user on the clientside? I don't even need to show the progress in real time, I am only interested in the very specific event: "when the download completes".Reviews: 2.  · I have a large install file (an exe) on my web server that people download and install from. Looking at my log files, I see a lot of people downloading it, but no way to tell for sure if they completed the download or cancelled out before it completed. Is there any function in PHP that would allow the web server to send the file and detect a. In reality, there is no way with PHP (which is a server-side, not a client-side, language) to truly detect when a file download has completed. The best you can Reviews: 1.

Return Values. Returns true if the file or directory specified by filename exists; false otherwise.. Note. This function will return false for symlinks pointing to non-existing files.. Note. The check is done using the real UID/GID instead of the effective one. Note: Because PHP's integer type is signed and many platforms use 32bit integers, some filesystem functions may return unexpected. The PHP Notes for Professionals book is compiled from Stack Overflow Documentation, the content is written by the beautiful people at Stack Overflow. Text. PHP Detect Encoding: Detect the encoding of text from a file or string. This class can detect the encoding of text from a file or string. It can read the text from a file or a given string and detect different types of the UTF character encoding. Currently it can distinguish UTF-8, UTF, UTF little or big endian encodings.

If you still get strange results when downloading (especially in IE), make sure that the PHP output compression is disabled, as well as any server compression (sometimes the server inadvertently applies compression on the output produced by the PHP script). 4. Handling large file sizes. readfile() is a simple way to ouput files files. I have a large install file (an exe) on my web server that people download and install from. Looking at my log files, I see a lot of people downloading it, but no way to tell for sure if they completed the download or cancelled out before it completed. Is there any function in PHP that would allow the web server to send the file and detect a. Use HTTP_USER_AGENT and the preg_match () Function to Detect Mobile Devices in PHP. We can use the string HTTP_USER_AGENT to get the information about the user’s browser to visit the website. We will use the $_SERVER superglobal variable and the string as an array element. The superglobal variable contains information about the webserver.