Checking what PHP version I'm running on Linux?

Question

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?

score 184 · Accepted Answer · edited Aug 24 '18 at 18:36

184

Try running the following at the command line.

To just get the version information:

php -v

Or to get a lot of info:

php -i

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

edited Aug 24 '18 at 18:36

Andrew

answered Aug 24 '09 at 09:07

Paxxi

17

+1 php -v was a lot faster – hyperslug Aug 24 '09 at 09:10
5

Thx, this worked :-) php -i | grep 'PHP Version' gave me the answer – Elitmiar Aug 24 '09 at 09:12
4

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()) – Akshay Raje Jun 04 '14 at 11:14
@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. – Giacomo1968 Feb 23 '16 at 12:06
And php-cli maybe not installed in the system – Furkat U. Mar 06 '17 at 07:02

score 19 · Answer 2 · edited Mar 08 '14 at 10:47

19

You can make an index.php file with

<?php phpinfo() ?>

edited Mar 08 '14 at 10:47

Aaron Butacov

answered Aug 24 '09 at 09:06

hyperslug

7

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 :P – Phoshi Aug 24 '09 at 10:56
Ah, right, I have a habit of using ASP tags. – hyperslug Aug 24 '09 at 21:26
2

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 http://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.) – Arjan Sep 14 '09 at 16:21
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. – Giacomo1968 Feb 23 '16 at 12:06
this should be the correct answer – Nico Dec 21 '16 at 10:22

score 12 · Answer 3 · answered Sep 14 '09 at 15:58

An answer was accepted, but another option on RPM systems (RHEL, Centos, Fedora, etc.) is to use the following:

rpm -q php

And while I'm at it, the general method for using RPM to find info on a package for any rpm-installed program or file is similar to this (for awk):

Find the full path to the file if not known, such as for an executable in $PATH:

type -path awk
Find the name, including version, of the package containing the file:

rpm -qf /usr/bin/awk
If desired, query for info from that package:

rpm -qi gawk

It's a bit trickier for packages installed and used by Apache since they may not be on $PATH, but you can start with something like:

rpm -qa | egrep -i 'php|awk'

score 3 · Answer 4 · edited Sep 24 '12 at 11:21

3

Use

more /etc/php.ini

This will show you:

edited Sep 24 '12 at 11:21

slhck

answered Sep 24 '12 at 10:13

Pankaj

4 Answers4