Code · .php

How to open a .php file

If double-clicking a PHP file did nothing useful, that is normal: the format is fine, your operating system just has no default application registered for it. This page explains the format and gives you a way to read one immediately.

What is a .php file?

PHP Source is a code format developed by Rasmus Lerdorf, first appearing in 1995. It is normally produced by WordPress, Laravel, web hosting.

Still powers the large majority of measurable websites, chiefly through WordPress. Code lives between tags, so a .php file can be mostly plain HTML.

Full namePHP Source
File categoryCode
MIME typeapplication/x-httpd-php
Magic bytes (file signature)3C 3F 70 68 70 (<?php)
DeveloperRasmus Lerdorf
Introduced1995
Usually created byWordPress, Laravel, web hosting
OpenAnyFile enginesyntax highlighter
Opens without uploadYes — parsed locally in your browser

Open a .php file in your browser

OpenAnyFile routes .php to its syntax highlighter, which highlights the source with language-aware colouring and line numbers.

  1. Open the OpenAnyFile opener in this browser — nothing to download or sign up for.
  2. Drag your .php file onto the drop zone, click to browse for it, or paste it with Ctrl+V.
  3. The extension is detected and the file is handed to the syntax highlighter.
  4. Your PHP opens on its own viewer page: the source with language-aware colouring and line numbers.
  5. Use fullscreen for a closer look, or download the file back out unchanged. No account, no upload, no watermark, no file-size gate.

What you can and cannot do with it here

Works

Viewing, inspecting and verifying. You get the source with language-aware colouring and line numbers. File details, exact byte size and the detected signature are always shown.

Does not work

Editing and re-saving. OpenAnyFile is a reader, not an editor — for changes you still need special software or an equivalent.

No upload, and here is why that matters for {E}

Handing a .php file to a random conversion site means handing over a copy you cannot get back. OpenAnyFile parses the file locally instead — the same way special software reads it off your disk, except the reader happens to be a web page. Nothing is transmitted, so there is nothing to leak, log or subpoena. It also means it keeps working with your Wi-Fi switched off.

Frequently asked questions about PHP files

Can I open a .php file without installing special software?

Yes. OpenAnyFile's syntax highlighter runs in your browser, so you can read a PHP file with nothing installed. You get the source with language-aware colouring and line numbers. For full editing you still need the original application — this is a viewer, not an editor.

How can I check a file really is a PHP file?

Look at the first bytes rather than the extension. A genuine PHP begins with 3C 3F 70 68 70 (

Is it safe to open a PHP file online?

With OpenAnyFile, yes, because nothing is uploaded. The file is read locally through your browser's File API and never leaves your device, so there is no server copy to leak, log or retain. That matters most for the kind of file people are least willing to hand to a random converter site.

What is a .php file, exactly?

PHP Source — an application/x-httpd-php format created by Rasmus Lerdorf since 1995. Still powers the large majority of measurable websites, chiefly through WordPress. Code lives between tags, so a .php file can be mostly plain HTML.

Does the same viewer handle formats related to PHP?

Yes — the same engine also opens .html, .xml, .sql, so you can compare related files without switching tools.

Related formats

These open with the same engine, so if you have one of these sitting next to your .php file, it will open too:

⚡ Open your .php file now All 300 file types