Framework: A web application framework is a software framework that is designed to support the development of dynamic websites, Web applications and Web services.

1. CodeIgniter
2. CakePHP
3. Zend
4. Symfony

CMS: A content management system (CMS) is the collection of procedures used to manage work flow in a collaborative environment. These procedures can be manual or computer-based.

1. Joomla
2. Drupal
3. Magento
4. CRE Loaded Oscomerce
5. Wordpress

We can use PEAR to process zip files in PHP using Archive_Zip….

First set PEAR path in php include path using set_include_path

Make Zipped file

<?php
include (’Archive/Zip.php’);        // include PEAR ZIP package

$obj = new Archive_Zip(’test.zip’);  // zipped file name

$files = array(’svnlabs/1.gif’,
‘svnlabs/resume.doc’,
‘svnlabs/invoice.xls’);   // files add to zip

if ($obj->create($files)) {
echo ‘Files zipped successfully!’;
} else {
echo ‘Error in file zipping’;
}
?>
List Zip file elements

<?php
include (’Archive/Zip.php’);        // include PEAR ZIP package

$obj = new Archive_Zip(’test.zip’); // Input zip file

$files = $obj->listContent();       // zip information

foreach ($files as $f) {
foreach ($f as $s => $v) {
echo “$s: $v\r\n”;
}
echo “\r\n”;
}
?>
I really enjoyed programming with PEAR…

File Upload Stream

PHP supports upload file stream… we can stream data to server using PHP stream_open() & stream_write() functions.

There is alternate method in PEAR to transfer files to server1 to server2. PEAR have HTTP package for uploading files.

HTTP_Request supports GET/POST/HEAD/TRACE/PUT/DELETE, Basic authentication, Proxy, Proxy Authentication, SSL, file uploads etc.

<?php
require_once "HTTP/Request.php";
$req =& new HTTP_Request("http://domain.com/upload");
$req->setBasicAuth("login", "pass");
$req->setMethod(HTTP_REQUEST_METHOD_POST);

$result = $req->addFile("data", "/home/svnlabs.mp4");
if (PEAR::isError($result)) {
echo "Error occurred during file upload!";
} else {
$response = $req->sendRequest();
if (PEAR::isError($response)) {echo "Error occurred during file upload!";
} else {
echo "File successfully uploaded!";
}
}
?>

PEAR is a framework and distribution system for reusable PHP components.

How we get PEAR packages with php files?

Add block of code to the php file….

<?php
// include PEAR class
include (”Date.php”);

// initialize Date object
$d = new Date(”1981-08-07 01:30:11″);

// retrieve date to display
echo $d->getDate();

// retrieve date as formatted string
echo $d->format(”%A, %d %B %Y %T”);

?>

Output:
1981-08-07 01:30:11
Friday, 07 August 1981 01:30:11

Converting between time zones

<?php
// include class
include (”Date.php”);

// initialize object
$d = new Date(”1981-08-07 10:36:27″);

// set local time zone
$d->setTZByID(”GMT”);

// convert to foreign time zone
$d->convertTZByID(”IST”);

// retrieve converted date/time
echo $d->format(”%A, %d %B %Y %T”);
?>

Output:
Thursday, 07 August 1981 16:06:27

Calculating GMT offsets

<?php
// include class
include (”Date.php”);

// initialize object
$d = new Date(”2006-08-08 10:26:27″);

// set local time zone
$d->setTZByID(”PST”);

// get raw offset from GMT, in msec
echo $d->tz->getRawOffset();
?>

Adding and subtracting timespans

<?php
// include class
include (”Date.php”);

// initialize object
$d = new Date(”1951-09-13 16:55:11″);

// add 01:20 to it
$d->addSpan(new Date_Span(”0,1,20,0″));

// subtract 00:05 from it
$d->subtractSpan(new Date_Span(”0,0,5,0″));

// retrieve date as formatted string
echo $d->format(”%A, %d %B %Y %T”);
?>

PHP have rich library to manage “Daylight saving time”… we can use PEAR for DST

United States begins Daylight Saving Time at 2:00 a.m. on the second Sunday in March and reverts to standard time on the first Sunday in November.

Daylight Saving Time

Enjoy programming with PEAR….

The Alternative PHP Cache (APC) is a free, open, and robust framework for caching and optimizing PHP intermediate code.

yum install php-pear
yum install php-devel httpd-devel
yum groupinstall ‘Development Tools’
yum groupinstall ‘Development Libraries’
pecl install apc

http://si2.php.net/manual/en/install.pecl.php

Have the fun with json….

JSON (JavaScript Object Notation) is a lightweight data-interchange format. It is easy for humans to read and write. It is easy for machines to parse and generate.

# yum -y install php-pear

# pecl install json

# vi /etc/php.d/json.ini
extension=json.so

# service httpd restart

Here is the PHP function that will remove empty key => value in PHP array…

function array_trim($sv)
{
$s = 0;
$svn = null;
$c = count($sv);
for($i = 0; $i < $c; $i++)
{
if($sv[$i] != “”){
$svn[$s++] = trim($sv[$i]);
}
}
return $svn;
}

$svarray = array(’   ‘, ’svlinux’, ’svnlabs’, ‘lamp’, ”);
$svarray = array_trim($svarray);
echo ‘<pre>’;
print_r($svarray);
echo ‘</pre>’;

Output:

Array(
[0] => svlinux
[1] => svnlabs
[2] => lamp
)