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?

Answer 1

try running any of the following at the command line

php -i

to get alot of info or

php -v

to just get the version information

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

Answer 2

Use

more /etc/php.ini

This will show you:

1. Apache Version
2. PHP Versions
3. PHP Functions
4. Various options regarding PHP

Answer 3

It can usually be done remotely by checking the X-Powered-By HTTP Header

On-line Test @ http://hackertarget.com/powered-by/

Or try this against any website to see the headers:

 curl -I www.php.net

Answer 4

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):

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

   type -path awk

2. Find the name, including version, of the package containing the file:

   rpm -qf /usr/bin/awk

3. 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'

Answer 5

You can make an index.php file with

<% phpinfo() %>