To trigger the browser's "Save As" dialog, you need to send these headers before any content is output:
: The most critical header. By setting it to attachment and specifying a filename , you force the download prompt. download file to browser php
: Informs the browser of the file size, allowing it to display a progress bar. Simple Force Download Script To trigger the browser's "Save As" dialog, you
How to Download a File to Browser Using PHP When you want a user to download a file rather than viewing it directly (like an image or a PDF), you must use PHP to send specific HTTP headers to the browser. This process is known as "forcing" a download. The Core Headers for File Downloads Simple Force Download Script How to Download a
: Tells the browser the file type (e.g., application/pdf or image/jpeg ). Using application/octet-stream is a common way to treat any file as a generic binary download.
The most straightforward way to serve a file is by using the readfile() function, which reads a file and writes it to the output buffer. Content-Disposition header - HTTP - MDN Web Docs