Php show version linux

Checking what PHP version I’m running on Linux?

I’m running Centos 5 and I need to know what version of PHP I’m running, is there a command for this which I can run?

4 Answers 4

Try running the following at the command line.

To just get the version information:

It should give you all information you need about the php install.

Just be cautious that the CLI version of PHP (checked from command line) can be different from the one served by your webserver (shown by phpinfo())

@AkshayRaje Exactly. Most people who ask “What PHP version am I using?” are usually referring to the Apache/Nginx PHP module and not the PHP CLI stuff. The PHP CLI info has 100% nothing to do with the PHP module used by Apache/Nginx.

You can make an index.php file with

this has the advantage of working on servers you don’t have ssh access to, though personally I’ve always preferred , just for the futureproofing 😛

On any PHP website one can often see the version in the X-Powered-By header in each PHP generated HTTP response. When you don’t have SSH access, then sometimes phpshell.sourceforge.net can be used. (Though with much care, like one needs to check if a folder is writable before running a tar command.)

First, this is the answer. Most people who ask “What PHP version am I using?” are usually referring to the Apache/Nginx PHP module and not the PHP CLI stuff. The PHP CLI info has 100% nothing to do with the PHP module used by Apache/Nginx. But @Arjan also, many systems administrators disable the “X-Powered-By” header servers send out as part of security hardening. While it seems convenient for developers, headers like that put you on the “sucker list” for botnet attacks. If you run a server and the main way you are determining PHP version is via “X-Powered-By” your process is very flawed.

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Как узнать версию php

Язык программирования PHP — один из самых популярных языков для создания веб-сайтов и различных веб-приложений. Когда вы устанавливаете какую-либо систему управления контентом, например, WordPress, Joomla, ModX или что-либо другое, обычно у них есть требование к минимальной версии PHP.

Поэтому часто бывает необходимо узнать версию PHP, установленную на сервере. Это можно сделать несколькими способами, но в обоих случаях у вас должен быть доступ к серверу.

Просмотр версии в терминале

Для того чтобы узнать установленную версию PHP в терминале надо иметь SSH доступ к серверу. Подключитесь к серверу по SSH и выполните такую команду:

Утилита покажет информацию о сборке PHP, а также её версию. Однако, такой способ позволяет узнать версию используемую по умолчанию в консоли или php-cli. Если вы используете какую-либо панель управления сервером, то обычно панели устанавливают свои версии PHP отдельно в папку /opt. Чтобы посмотреть версию PHP установленной панелью надо использовать браузер.

Просмотр версии в браузере

Подключитесь по FTP или по SSH к серверу и перейдите в корневой каталог вашего сайта. Там создайте небольшой скрипт со следующим содержимым:

Затем откройте ваш сайт и допишите в адресной строке адрес этого файла:

Если всё сделано верно, будет выведена огромная таблица с информацией про PHP и установленные расширения, а в самом верху страницы будет версия PHP.

Если вы не хотите выводить всю таблицу с информацией о PHP, то можно вывести только версию с помощью функции phpversion. Например:

Тогда, в результате вы получите такую страницу:

Как видите, проверить версию PHP не так уже и сложно. А какие способы знаете вы? Напишите в комментариях!

Обнаружили ошибку в тексте? Сообщите мне об этом. Выделите текст с ошибкой и нажмите Ctrl+Enter.

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phpversion

Returns a string containing the version of the currently running PHP parser or extension.

Parameters

An optional extension name.

Return Values

Returns the current PHP version as a string . If a string argument is provided for extension parameter, phpversion() returns the version of that extension, or false if there is no version information associated or the extension isn’t enabled.

Changelog

Examples

Example #1 phpversion() example

// prints e.g. ‘Current PHP version: 4.1.1’
echo ‘Current PHP version: ‘ . phpversion ();

// prints e.g. ‘2.0’ or nothing if the extension isn’t enabled
echo phpversion ( ‘tidy’ );
?>

Example #2 PHP_VERSION_ID example and usage

// PHP_VERSION_ID is available as of PHP 5.2.7, if our
// version is lower than that, then emulate it
if (! defined ( ‘PHP_VERSION_ID’ )) $version = explode ( ‘.’ , PHP_VERSION );

define ( ‘PHP_VERSION_ID’ , ( $version [ 0 ] * 10000 + $version [ 1 ] * 100 + $version [ 2 ]));
>

// PHP_VERSION_ID is defined as a number, where the higher the number
// is, the newer a PHP version is used. It’s defined as used in the above
// expression:
//
// $version_id = $major_version * 10000 + $minor_version * 100 + $release_version;
//
// Now with PHP_VERSION_ID we can check for features this PHP version
// may have, this doesn’t require to use version_compare() everytime
// you check if the current PHP version may not support a feature.
//
// For example, we may here define the PHP_VERSION_* constants thats
// not available in versions prior to 5.2.7

if ( PHP_VERSION_ID < 50207 ) define ( 'PHP_MAJOR_VERSION' , $version [ 0 ]);
define ( ‘PHP_MINOR_VERSION’ , $version [ 1 ]);
define ( ‘PHP_RELEASE_VERSION’ , $version [ 2 ]);

Notes

Note:

This information is also available in the predefined constant PHP_VERSION . More versioning information is available using the PHP_VERSION_* constants.

See Also

• PHP_VERSION constants
• version_compare() — Compares two «PHP-standardized» version number strings
• phpinfo() — Outputs information about PHP’s configuration
• phpcredits() — Prints out the credits for PHP
• zend_version() — Gets the version of the current Zend engine

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How to Check PHP Version

Hosting providers are traditionally slow to adopt new PHP versions on their servers. The consequence of this is that many different PHP versions exist on the web at the same time.

If you are implementing new features, installing a new PHP-based app, or trying to locate a bug on your website, it is important to know which PHP version your web server is running.

In this tutorial, you will learn how to check your PHP version by running PHP code on your server or using the command line.

Check PHP Version by Running PHP Code

The simplest method to determine the PHP version running on your website is executing a PHP file that contains the following code:

Create the file using a text editor like gedit or Notepad, and upload it to your website’s document root directory.

Then open a web browser and type the full address of the file in the address bar. For example, if you uploaded a file titled phpinfo.php to the example.com root directory, you would go to:

http://www.example.com/phpinfo.php

The code above displays the PHP version without any further details, like in the output below:

If you need more details on your PHP configuration, such as system information, build date, server API, configuration file information, etc., upload a file containing the phpinfo() function:

When visited in the browser, this file shows the PHP version in the upper-left corner, followed by configuration data:

Note: While phpinfo() is useful for debugging, the page features sensitive information about your system. Remove the file from the server once you finish using it.

For a list containing all the loaded PHP extensions and their versions, upload a file with the following code:

The output shows each extension in a separate line, including the version of the PHP core:

Check PHP Version Using the Command Line (Windows, Linux and macOS)

If you have permission to SSH into the remote server, use the command line to check the installed PHP version. This method is also useful for checking the PHP version installed locally.

2. The php -v command works on Linux, macOS, Windows, and other supported systems. Its output contains the PHP version number, build date, and copyright information.

Note: If there is more than one PHP version installed on the server, the php -v command shows the default command-line interface (CLI) version. This version is not necessarily the one that runs on the hosted websites.

Fix ‘PHP is not Recognized’ Error on Windows

On Windows, the PHP path is sometimes not recognized by the system, so the php -v command outputs the ‘php is not recognized’ error.

To solve this problem, set the PATH environment variable first.

1. Type the following command, replacing [location] with the path to your PHP installation.

2. Typing php -v now shows the PHP version installed on your Windows system.

Note: Check out our other PHP guides such as How to Make a Redirect in PHP or 4 Different Types of Errors in PHP.

This article aimed to explain the common ways to check the PHP version on your server or local machine. The methods covered in this tutorial include running PHP code and using the command-line interface.

Marko Aleksić is a Technical Writer at phoenixNAP. His innate curiosity regarding all things IT, combined with over a decade long background in writing, teaching and working in IT-related fields, led him to technical writing, where he has an opportunity to employ his skills and make technology less daunting to everyone.

A PHP Error occurs when something is wrong in the PHP code. An error can be simple as a missing semicolon.

If a script is not written correctly, or if something unusual happens, PHP can generate an error message.

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