.PHP

.PHP File Extension

Learn what a .php file is, what it is used for, which programs can open it, and how to convert or troubleshoot this file format.

Programming File Extension Guide 270 Searches
.PHP
PHP Hypertext Preprocessor

Quick Facts

Basic information about this file format

Extension
.PHP
File Type
PHP Hypertext Preprocessor
Category
Programming
Best first step
Use compatible software

Quick Summary

A practical overview of the .php file format

PHP files contain code written in the PHP scripting language. PHP is a widely-used open source general-purpose scripting language that is especially suited for web development. It can be embedded into HTML. Instead of having lots of commands to output HTML, PHP pages contain HTML with embedded code…

File extension .PHP
File type PHP Hypertext Preprocessor
Category Programming
Recommended action Open with a trusted compatible app

How to open a .php file

Start with a trusted app that supports this format

  • Check the file extension carefully and confirm that the file name really ends with .php.
  • Use software that supports this file type. If one app does not work, try another compatible program for the same platform.
  • Update the application if the file was created by a newer version of the software.
  • Scan files from unknown sources before opening them, especially documents, archives, scripts, installers, and executable files.

What is a .php file?

File extension details and usage information

PHP files contain code written in the PHP scripting language. PHP is a widely-used open source general-purpose scripting language that is especially suited for web development. It can be embedded into HTML. Instead of having lots of commands to output HTML, PHP pages contain HTML with embedded code that does something (in this case, output something). The PHP code is executed on the server, generating HTML which is then sent to the client. This allows for dynamic web pages that can interact with databases, handle user input, and perform other server-side tasks. PHP files are typically used to create dynamic web pages, web applications, and server-side scripts. They are often used in conjunction with HTML, CSS, and JavaScript to create complete web applications. PHP is a powerful and versatile language that is used by many popular websites and applications.

Software Compatibility

Programs that may open or work with .php files

Windows

Compatible applications

Notepad++ Compatible
Visual Studio Code Compatible
PhpStorm Compatible
Sublime Text Compatible
Adobe Dreamweaver Compatible
XAMPP (with a text editor) Compatible

macOS

Compatible applications

TextEdit Compatible
Visual Studio Code Compatible
PhpStorm Compatible
Sublime Text Compatible
Adobe Dreamweaver Compatible
MAMP (with a text editor) Compatible

Linux

Compatible applications

gedit Compatible
Visual Studio Code Compatible
PhpStorm Compatible
Sublime Text Compatible
Bluefish Compatible
LAMP (with a text editor) Compatible

Mobile

Mobile applications

Pydroid 3 (Android - can execute PHP code, but not directly open .php files for editing) Compatible
Textastic Code Editor (iOS - can open and edit, but not execute) Compatible
Codeanywhere (iOS/Android - Cloud based IDE) Compatible

Can .php files be converted?

Options for saving or exporting this file to another format

In many cases, a .php file can be converted by opening it in compatible software and using an option such as Save As, Export, or Convert. The available output formats depend on the file type and the application used.

  • Use the original software that created the file when possible.
  • Check whether the application supports exporting to common formats.
  • Be careful with online converters when working with private, business, or sensitive files.
  • If conversion fails, the file may be corrupted, incomplete, encrypted, or not actually a .php file.

Why can't I open a .php file?

Common reasons this file type may not open correctly

Wrong software

The file may require a specific program that supports the .php format.

Incorrect extension

The file extension may have been renamed manually, even though the actual file format is different.

Corrupted file

The file may be incomplete, damaged during download, or transferred incorrectly.

Outdated app

Your software may need to be updated before it can open newer versions of this file format.

Frequently Asked Questions

Common questions about .php files

To open a .php file, use software that supports this file format.

  • Notepad++
  • Visual Studio Code
  • PhpStorm
  • Sublime Text
  • Adobe Dreamweaver

Open the file in compatible software and look for options such as Save As, Export, or Convert. If no export option is available, the file may require a specialized converter or the original application that created it.

  1. Verify that the file extension is correct.
  2. Install or update compatible software.
  3. Try another application that supports this format.
  4. Check whether the file is corrupted, incomplete, or encrypted.

A file extension alone does not guarantee whether a file is safe or unsafe. Only open files from trusted sources, scan unknown files before opening them, and be especially careful with executable, script, archive, and document files.

File safety tips

Use caution with unknown files

Only open files from trusted sources. Before opening a .php file, scan it with antivirus software, verify that the file extension is expected, and avoid running unknown executable, installer, macro-enabled document, or script files.