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

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.

You can make an index.php file with

<?php phpinfo() ?>

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'

Use

more /etc/php.ini

This will show you: