What is a PHP file?
A .PHP file is a PHP Source Code File originally developed by The PHP Group. It is a server-side web script used to generate dynamic web pages. Developers write these scripts in plain text. Web servers process the text and send standard web pages to the user.
Hidden File Formats
A .PHP file does not always contain text code. Because a .PHP file has multiple possible meanings, you must often inspect the contents. Sometimes, web browsers download files incorrectly and save them with the .PHP extension. A .PHP file might actually be a PDF document, a ZIP compressed archive, or an MP4 video file. Malicious users also hide web shell backdoors inside .PHP files, sometimes disguising them as JPG images.
How to open PHP files?
You can read standard .PHP source code using text editors like Visual Studio Code, Sublime Text, or Notepad++. To execute the code, you need a local server stack like XAMPP or MAMP. Because many files receive the .PHP extension by mistake during downloads, we recommend using viewer.online/php to identify the actual format of the user's file.
File Conversion
If you want to change the format of your file, we recommend file conversion to sensible target formats on convert.guru. You can convert plain text PHP files into .TXT or .HTML documents for easier reading and sharing.
Summary
viewer.online/php analyzes .PHP files to identify their exact format and creator software, shows which programs can open the file, and usually previews it. In conclusion, viewer.online/php directly opens and previews .PHP files in the browser, eliminating the need to install software or troubleshoot compatibility issues.