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Monday, October 24, 2011

Apache PHP deployment in Ubuntu

Environment : Linux Ubuntu 11.04 Natty Narwhal

php.ini-s packaged : development and production

php.ini-development and php.ini-production, which come with the PHP 5.3 package, are really just examples of recommended settings. You should review the settings and make sure that they apply to your use and copy them to the regular php.ini file location. On my Ubuntu 10.04.1 LTS (lucid) server, here’s where I find mine:

# locate php.ini-development
/usr/share/doc/php5-common/examples/php.ini-development

The alternative example, php.ini-production, is in the same directory.

source : http://serverfault.com/questions/178270/where-is-php-ini-development-on-ubuntu-lamp

Enable mod_rewrite

what is mod_rewrite?
mod_rewrite is a part of Apache server that can rewrite requested urls on the fly.

To enable mod_rewrite in Ubuntu, you just need to write this command in terminal

sudo a2enmod rewrite

Next thing is Apache needs to be restarted
sudo service apache2 restart

source : http://mahmudahsan.wordpress.com/2008/07/06/ubuntu-enable-mod_rewrite-in-apache-server/

Install - enable mcrypt

Also on Ubuntu, make sure you actually have php5-mcrypt installed. You can install it with:

sudo apt-get install php5-mcrypt

If you get any errors, you may need to enable the 'universe' repository, explained here:
https://help.ubuntu.com/community/Repositories/Ubuntu

source : http://php.net/manual/en/mcrypt.setup.php

Unable to lock the administration directory

After execute command :
sudo apt-get install php5-mcrypt

Error message appear :
E: Could not get lock /var/lib/dpkg/lock - open (11: Resource temporarily unavailable)
E: Unable to lock the administration directory (/var/lib/dpkg/), is another process using it?

Answer :
As per the other answers there is a package management app holding the lock. When unsure do not manually remove the lock, first run:
sudo fuser -cuk /var/lib/dpkg/lock; sudo rm -f /var/lib/dpkg/lock

This will kill any processes opening the file before removing it.

source : http://askubuntu.com/questions/15433/fixing-could-not-get-lock-var-lib-dpkg-lock

Install PEAR


PEAR is PHP’s equivalent of Perl’s CPAN. It offers hundreds of ready-to-use code modules that can make projects go much more quickly than having to hand code everything. However, it never seems like PEAR is easy to get running.
Installing the Needed Software

In Ubuntu, installing the following packages will quickly get you started with PEAR: php5-cli, php5-dev, and php-pear.

Make sure that you read the next section about problems with using PEAR to install PEAR packages if you are running 9.10, Karmic Kaola.

Here’s an example of how to quickly install those packages from the terminal.

$ sudo apt-get install php5-cli php5-dev php-pear
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following extra packages will be installed:
autoconf autoconf2.13 automake automake1.4 autotools-dev libltdl-dev libssl-dev libtool m4 php5-common shtool zlib1g-dev
Suggested packages:
autobook autoconf-archive gnu-standards autoconf-doc gettext libtool-doc automaken gfortran fortran95-compiler gcj php5-suhosin
The following NEW packages will be installed:
autoconf autoconf2.13 automake automake1.4 autotools-dev libltdl-dev libssl-dev libtool m4 php-pear php5-cli php5-common php5-dev shtool zlib1g-dev
0 upgraded, 15 newly installed, 0 to remove and 5 not upgraded.
Need to get 0B/8,690kB of archives.
After this operation, 27.7MB of additional disk space will be used.
Do you want to continue [Y/n]? y
Selecting previously deselected package m4.
(Reading database ... 127272 files and directories currently installed.)
Unpacking m4 (from .../archives/m4_1.4.13-2_i386.deb) ...
...

source : http://chrisjean.com/2009/11/02/use-php-pear-with-ubuntu/

XSL with PHP in Ubuntu


XSL support in php5 is deactivated by default. Go to Synaptic Package Manager and search for php5-xsl. Mark the package for installation, apply the changes and once it’s finished, don’t forget to restart the server!

sudo /usr/sbin/apache2 -k restart

More XSL stories later on… time to experiment :)

source : http://soledadpenades.com/2006/12/09/xsl-with-php-in-ubuntu/