A php4 file extension is associated with the HTML page with PHP (PHP HyperText PreProcessor) version 4 format.

Detailed description

Software that open php4 file

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PHP4 file extension - PHP (HyperText PreProcessor) script with PHP version 4 code

What is php4 file? How to open php4 files?

File type specification:

Source code and script file type icon Source code and script file type

php4 file icon: php4 filetype icon

The php4 file extension is related to the HTML page with PHP (HyperText PreProcessor).

PHP is a widely used general-purpose server scripting language that is especially suited for Web development and can be embedded into HTML.

.php4 refers to the old version 4 of the PHP scripting language. However, almost all PHP files use only the .php file extension for all versions. 

PHP version 4 is ancient and not supported in these days

Updated: April 19, 2024

The default software associated to open php4 file:

Zend Studio icon

Zend Technologies Ltd. logoZend Studio  Microsoft Windows software

Company or developer:
Zend Technologies Ltd.

Zend Studio is a professional IDE for PHP developers that offers comprehensive set of editing, debugging, analysis, optimization and database tools. Zend Studio is tightly integrated with Zend Server software. The current version is Zend Studio 13 and new versions are released every year.  It is available in versions for Windows, Linux and Mac OS X.

Visual Studio Code icon

Microsoft Corporation logoVisual Studio Code  Multiplatform software

Company or developer:
Microsoft Corporation

Visual Studio Code is integrated development tool for creating web and cloud software available for Linux, Mac OS X (macOS), and Windows.

PhpStorm icon

JetBrains s.r.o. logoPhpStorm  Multiplatform software

Company or developer:
JetBrains s.r.o.

PhpStorm is PHP development environment for Microsoft Windows, macOS and Linux operating system. PhpStorm supports Symfony, Drupal, WordPress, Zend Framework, Laravel, Magento, Joomla!, CakePHP, Yii, and other frameworks.

Various front-end technologies also supported, such as HTML5, CSS, Sass, Less, Stylus, CoffeeScript, TypeScript, Emmet, and JavaScript, etc.

PHP Engine icon

The PHP Group logoPHP Engine  Multiplatform software

Company or developer:
The PHP Group

PHP (Hypertext PreProcessor) is server side scripting language used to web development and create dynamic web pages. PHP scripts are embedded to standard HTML document and interpreted by a web server with PHP module.

Help how to open:

Use PHP editor, specialised development tools like Zend Studio, VS code, PHP Storm. To open a webpage on the Internet, use a web browser (Internet Explorer, Firefox).

How to convert:

PHP can be translated into other programming languages or run on newer PHP engine versions. To do so, change the .php4 file extension to .php. If the code is compatible with newer versions of PHP, it will work normally on the web server.

Related links:

PHP engine home page

PHPBuilder.com, the best resource for PHP tutorials, templates ...

List of software applications associated to the .php4 file extension

Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open php4 file, edit php4 file, convert php4 file, view php4 file, play php4 file etc. (if exist software for corresponding action in File-Extensions.org's database).

Hint:
Click on the tab below to simply browse between the application actions, to quickly get a list of recommended software, which is able to perform the specified software action, such as opening, editing or converting php4 files.

Software that open php4 file - PHP (HyperText PreProcessor) script with PHP version 4 code

Programs supporting the exension php4 on the main platforms Windows, Mac, Linux or mobile. Click on the link to get more information about listed programs for open php4 file action.

Microsoft Windows:

Multiplatform:

Main software associated with php4 file by default:
Visual Studio Code small icon Visual Studio Code
PhpStorm small icon PhpStorm

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