eAccelerator is a free open-source PHP accelerator, optimizer, and dynamic content cache. It increases the performance of PHP scripts by caching them in their compiled state, so that the overhead of compiling is almost completely eliminated. It also optimizes scripts to speed up their execution. eAccelerator typically reduces server load and increases the speed of your PHP code by 1-10 times.

eAccelerator stores compiled PHP scripts in shared memory and executes code directly from it. It creates locks only for a short time, while searching for a compiled PHP script in the cache, so one script can be executed simultaneously by several engines. Files that can’t fit in shared memory are cached on disk only.

Installing From Source

unpack it by ::

$ sudo tar -xjvf eaccelerator-0.9.5.3.tar.bz2
$ cd eaccelerator-0.9.5.3/

Linux User Read README file

Windows User Read README.win32

Compile and install it with ::

./configure
make
sudo make install
make test

Add the below line to php.ini file

extension=eaccelerator.so

Check phpinfo()  and conform the module eAccelerator is loaded

error_reporting – Sets which PHP errors are reported.

int error_reporting ([ int $level] )

error_reporting() level constants

<?php error_reportinng(E_ALL);?>

error_log – Sends an error message to the web server’s error log, a TCP port or to a file.

bool error_log ( string $message  [, int $message_type  [, string $destination  [, string $extra_headers ]]] )

Parameters

$message – The error message that should be logged.

$message_type – Says where the error should go. The possible message types are as follows:

$extra_headers – The extra headers. It’s used when the message_type parameter is set to 1. This message type uses the same internal function as mail() does.

restore_error_handler – Restores the previous error handler function

bool restore_error_handler ( void )

<?phprestore_error_handler();?>

set_error_handler – Sets a user-defined error handler function

mixed set_error_handler ( callback $error_handler  [, int $error_types] )

Example:

 <?php 
error_reporting(E_ALL); 
function on_error($num, $str, $file, $line) {
    print "Encountered error $num in $file, line $line: $str\n"; 
    error_log("Error: Encountered error $num in $file, line $line: $st",1,  "dev@gmail.com","From: sys@gmail.com"); 
} 
set_error_handler("on_error"); 
restore_error_handler();?>

php5
php5-cli
php5-dev
php5-sqlite
php-pear

$ sudo apt-get install php5 php5-cli php5-dev php5-sqlite php-pear

Test if Apache and PHP are up and running typing in the browser:

http://localhost/

You should see something like:

Apache/2.0.55 (Ubuntu) PHP/5.1.2-1ubuntu1 Server at localhost Port 80

From the command line, as root:

$ sudo pear upgrade PEAR
$ sudo pear channel-discover pear.symfony-project.com

Edit /etc/php5/cli/php.ini and change the line:

memory_limit = 8M To memory_limit = 16M

Then

$ sudo pear install symfony/symfony
$ sudo pear install –alldeps http://phing.info/pear/phing-current.tgz

Using the command:

$ sudo pear config-show

we find the symfony libraries have been installed in:

$ php_dir/symfony/ /usr/share/php/symfony/ main libraries
$ data_dir/symfony/ /usr/share/php/data/symfony/ skeleton of symfony applications, default modules and configuration
$ doc_dir/symfony/ /usr/share/php/docs/symfony/ documentation

From the command line enter bellow command:

$ symfony -Vsymfony version 0.6.2

From the command line, as root:

$ mkdir /var/www/myproject
$cd /var/www/myproject
$ symfony init-project myproject
$ symfony init-app myapp

Edit /Virtual Host configuration file , and append the following at the end:

<VirtualHost 192.168.1.2:81>
ServerAdmin webmaster@localhost
ServerName servername.com
ServerAlias www.servername.com
DocumentRoot /var/www/project/web
Alias /sf /usr/share/php/data/symfony/web/sf
<Directory /var/www/project/web>
     Options FollowSymLinks MultiViews
     AllowOverride all
     Order allow,deny
     allow from all
</Directory>
</VirtualHost>

yum -y install php
yum -y install php-devel
yum -y install php-gd
yum -y install php-imap
yum -y install php-ldap
yum -y install php-mysql
yum -y install php-odbc
yum -y install php-pear
yum -y install php-xml
yum -y install php-xmlrpc
yum -y install curl
yum -y install curl-devel
yum -y install perl-libwww-perl
yum -y install ImageMagick
yum -y install libxml2
yum -y install libxml2-devel
yum -y install httpd

In Ububtu and Debian you can use the command ‘apt-get’

apt-get install php5

apt-get install php5-mysql

apt-get install php5-cli

To search the packages you can use the command apt-cache search <name>

Example :

sudo apt- cache search php5

This will list all the packages for php