[ from now onwards I will write blog at: http://funphp.com ]

How browser  handle this compression : Most of the browser are very much expert ,so they can handle this easily . The main technique is , apache will send the output in compressed format, after receiving this output  browser will uncompress it and render the formated output.

How to enable: 1. Open a new terminal and give this command.
2. sudo a2enmod deflate

3. create new file called deflate.conf in your apache conf.d folder. and paste the following code:

 <Location />

# Insert filter
 SetOutputFilter DEFLATE

# Netscape 4.x has some problems…
 BrowserMatch ^Mozilla/4 gzip-only-text/html

# Netscape 4.06-4.08 have some more problems
 BrowserMatch ^Mozilla/4\.0[678] no-gzip

# MSIE masquerades as Netscape, but it is fine
 BrowserMatch \bMSIE !no-gzip !gzip-only-text/html
 # Don’t compress images
 SetEnvIfNoCase Request_URI \
 \.(?:gif|jpe?g|png)$ no-gzip dont-vary

# Make sure proxies don’t deliver the wrong content
 Header append Vary User-Agent env=!dont-vary

</Location>

save the file.

4. sudo /etc/init.d/apache2 restart

Note: Please check your apache module,if you have not enabled header module of apache,

you must remove the line “Header append Vary User-Agent env=!dont-vary” from deflate.conf .

 sudo a2enmod rewrite 

2.Open and edit the default file from this directory /etc/apache2/sites-available/default by using the following command:

sudo gedit  /etc/apache2/sites-available/default

Find the following Directory structure:

<Directory /var/www/>

Options Indexes FollowSymLinks MultiViews
AllowOverride None //Change to AllowOverride All
Order allow,deny
allow from all

</Directory>

3.Restart apache using:

  sudo /etc/init.d/apache2 restart  

Your configuratation complete!
Now you should now be able to view http://localhost/ with the correct css formatting for the cake default page.
Note: To execute the above command you should have sudo/root permission in Ubuntu

situation 1: Suppose you have a paypal account.You want to sell something and want to make money transaction through paypal. Now there are a critical situation. When someone buy your product through paypal, suppose a software, you want that automatically a license key will send to that user if payment make successful. So, here is the integration process step by step: Put this code in your site:

 <form id=”formpay” action=”https://www.paypal.com/cgi-bin/webscr” method=”POST” >
<input type=”hidden” name=”cmd” value=”_xclick”>
<input type=”hidden” name=”business” value=”yourpaypalemail@email.com”>
<input type=”hidden” name=”item_name” value=”name of the item”>
<input type=”hidden” name=”item_number” value=”1″>
<input type=”hidden” name=”no_shipping” value=”1″>
<input type=”hidden” name=”return” value=”http://yoursite.com/success”>
<input type=”hidden” name=”notify_url” value=”http://yoursite.com/notifyme”>
<input type=”hidden” name=”currency_code” value=”USD”>
<input type=”hidden” name=”amount” value=”4″>
<input type=”image” src=”http://www.paypal.com/en_US/i/btn/x-click-but01.gif” name=”submit” alt=”Make payments with PayPal - it’s fast, free and secure!”>
</form>

This is the html code, that makes a visual paypal button in your site. Look carefully, the action of form remain same as here. If you want a normal buy button, then input name “cmd” its value should be =”_xclick”. input name “business” it’s value should be the email address you registered in paypal. Input name amount contains the price you set as a value. Now the most important input fields are “return” and “notify_url”. “return” field contains that url address, when purchase become successful and you want to show user some message like “congratulation, your purchase is successful”. As soon as purchase makes complete paypal dump some values to your “notify_url”. So, in this field, you should put that url of your site that makes some changes like database update or send any special email.

Now download this free code : http://www.hotscripts.com/Detailed/46734.html After downloading, unzip the zip file. You’ll get two php files. Now copy this file paypal.class.php into your project. Suppose your notify_url field is: http://abdullah.com/notify.php
Now write this code in notify.php

<?php
require_once(’paypal.class.php’);  // include the class file
$p = new paypal_class;             // initiate an instance of the class
if ($p->validate_ipn()) {
// Payment has been recieved and IPN is verified.  This is where you
// update your database to activate or process the order, or setup
// the database with the user’s order details, email an administrator,
// etc.  You can access a slew of information via the ipn_data() array.
// Check the paypal documentation for specifics on what information
// is available in the IPN POST variables.  Basically, all the POST vars
// which paypal sends, which we send back for validation, are now stored
// in the ipn_data() array.
// For this example, we’ll just email ourselves ALL the data.
$subject = ‘Instant Payment Notification - Recieved Payment’;
$to = ‘YOUR EMAIL ADDRESS HERE’;    //  your email
$body =  “An instant payment notification was successfully recieved\n”;
$body .= “from “.$p->ipn_data['payer_email'].” on “.date(’m/d/Y’);
$body .= ” at “.date(’g:i A’).”\n\nDetails:\n”;
foreach ($p->ipn_data as $key => $value) { $body .= “\n$key: $value”; }
mail($to, $subject, $body);
}
?>

So, if $p->validate_ipn() returns true, that means payment verified and you received the payment. And if it returns false, then you’ve to consider that for some reason payment doesn’t make successful.

situation 2: Suppose you want to make a subscription form. Subscripted fee may be charged daily, weekly, monthly or yearly. Suppose you want a yearly subscription form. So, any user who pays you, he have to pay yearly, otherwise his membership will cancel.
Solution: Here is the html code for the form. Look the changes. form action remains same as above. input field cmd is changed. Look the value of it. 5 new input field added here. For subscription form, notify_url be the same and you could use the paypal.class.php and like the previous way, you could check whether payment makes successful or not.

<form id=”fromsub” action=”https://www.paypal.com/cgi-bin/webscr” method=”POST” >
<input type=”hidden” name=”cmd” value=”_xclick-subscriptions”>
<input type=”hidden” name=”business” value=”yourpaypalemail@email.com”>
<input type=”hidden” name=”item_name” value=”name of the item”>
<input type=”hidden” name=”item_number” value=”1″>
<input type=”hidden” name=”no_shipping” value=”1″>
<input type=”hidden” name=”return” value=”http://yoursite.com/success”>
<input type=”hidden” name=”notify_url” value=”http://yoursite.com/notifyme”>
<input type=”hidden” name=”currency_code” value=”USD”>
<input type=”hidden” name=”amount” value=”4″>
<input type=”hidden” name=”a3″ value=”5″>
<input type=”hidden” name=”p3″ value=”1″>
<input type=”hidden” name=”t3″ value=”Y”>
<input type=”hidden” name=”src” value=”1″>
<input type=”hidden” name=”sra” value=”1″>
<input type=”image” src=”https://www.paypal.com/images/x-click-but20.gif” name=”submit” alt=”Make payments with PayPal - it’s fast, free and secure!”>
</form>

i submit my class in phpClasses last 15 days ago.  approved information get yesterday. you can backup and restore your mysql database very simply way using my class. it produce a .sql file as a backup file, and also you can restore this file using my class.

Backup: when you call my backup_database method, it create  a yourdatabase_name.sql file under the ‘location/dump/’ path.

i test it loccally, but not tested in remotly.

now i’m very bz, so i will tested it remotly also

you can download my classes” Here –>>>>http://www.phpclasses.org/browse/package/5101.html

But we can create a customize interface to data backup using create simple line of code

<?php
if(isset($_POST['submit']))
{
shell_exec(‘C:\xampp\mysql\bin\mysqldump.exe ‘.$_POST['dbname'].’ –user=root –password= >c:\\’.$_POST['dbname'].’.sql’) ;

}
?>
<body>
<form name=”mysql” method=”post”>
<div>
<table>
<tr>
<td>Database Name</td><td><input type=”text” name=”dbname”></td>
</tr>
<tr><td><input type=”submit”  name=”submit” value=”Backup”></td><td></td>

</tr>
</table>
</div>

</form>
</body>

given below the widget plugins name is “widget-test”. you can modified that as your need

<?php
/*
Plugin Name: widget-test
*/
##never forget this function configuration
##never forget add $before_widget,$before_title, $after_title and $after_widget
## example given below
function widget_test($args) {
extract($args);

echo $before_widget.$before_title.”widget-Title”.$after_title;
echo ‘<ul>’.”n”;
echo “text here”;//call any function or print something that will be show in your widget contents

echo ‘</ul>’.”n”;
echo $after_widget;
//}
}

###Widget initialize function
function widget_init() {
register_sidebar_widget(__(‘Widget Title’), ‘widget_test’);
}

add_action(‘plugins_loaded’, ‘widget_init’)
?>