Educate And Advocate

Sunday, April 1, 2012

A simple Shopping Cart code in PHP

Here is a simple way to code to code the shopping cart i have seen in many websites for the code but i hope i have done using basic simple concepts of PHP to code the Shopping cart

Here is the link to download the source code - download

Instructions for using that code

Extract the ca.rar
place ca folder in www folder
Execute the backup file or use scripts present in dbscripts folder to create new tables
Now run localhost/ca to execute the code

Tuesday, March 27, 2012

Get Url From Browser in Php

Getting the URL from the parent window when you use a popup. This small Example code might help you to get the url from the parent window this can be used normal windows also

if(isset($_SERVER['HTTP_REFERER']))
{

$strPrevScheme = parse_url($_SERVER['HTTP_REFERER'], PHP_URL_SCHEME);

$strPrevHost = parse_url($_SERVER['HTTP_REFERER'], PHP_URL_HOST);

$strPrevPath = parse_url($_SERVER['HTTP_REFERER'], PHP_URL_PATH);

    $strPrevURL = urlencode($strPrevScheme.'://'.$strPrevHost.$strPrevPath);


}

the parse_url(url) gives the following array

Array
(
    [scheme] => http
    [host] => hostname
    [user] => username
    [pass] => password
    [path] => /path
    [query] => arg=value
    [fragment] => anchor
)

reference - http://in2.php.net/manual/en/function.parse-url.php

Monday, March 26, 2012

Finding the Count of all Charecters entered

<?php
/******************************************************************************
* Filename: totalnumberofalphabets.php
* Description: The file is used to count the number of occurences of each charecter
* Author: G Jayendra Kartheek
* Date Created: 26 Mar 2012
* Copyright © 2012 All rights reserved
******************************************************************************/

//after user submits the values
if (isset($_POST['butSubmit']) && '' != $_POST['butSubmit']) {

//taking the charecter into the array
$strValue = str_split($_POST['txtInput']);
//copying the string array
$strDuplicate = $strValue;

$iIntI = 0;
//based on the string length travesing the array
while ($iIntI < strlen($_POST['txtInput'])) {
//initializing the count and j for every iteration
$iCount = 0;
$iIntIIntJ = 0;
//comparing each and every element and finding the count of each element
while ($iIntIIntJ < strlen($_POST['txtInput'])) {
if ($strDuplicate[$iIntI] == $strValue[$iIntIIntJ]) {

$iCount++;
}
$iIntIIntJ++;
}
//printing the count
echo '<br>Number of times "' . $strDuplicate[$iIntI] . '" repeated is : ' . $iCount;
$iIntI++;
}
}
?>
<form name="" method ="POST">
<input type='text' name = 'txtInput'/><input type = 'submit' name= 'butSubmit' value ="OK"/>
</FORM>

Thursday, March 22, 2012

Closing the PopUp and redirecting Parent Window

I have tried for few hours to solve this problem Here is the simple example which helps you to solve the Problem

Problem:
Create a PopUp window on submission of a value in PopUp the PopUp Closes and the Parent Windows redirects to Some other Page

Solution:
Here is the simple way to solve it

Create 2 php pages

1. popup.php
Copy this Code

<html>
    <head>
    </head>
    <body>
        <a href="#" onclick="window.open('popupcode.php','Login','height=500,width=420,scrollbars=yes');return false;">PopUp</a>
    </body>
    </html>

Go Deep>>>

Tuesday, March 20, 2012

Count Number of tables in a Schema

This is a very Simple query to find the number of tables present in a purticular schema of the database

select information_schema as your default schema and use the following query to find the count of number of tables in a particular schema

SELECT count(*) FROM 'TABLES' WHERE TABLE_SCHEMA = 'YOUR_SCHEMA_NAME*'

*YOUR_SCHEMA_NAME = NAME OF THE SCHEMA TO WHICH YOU ARE FINDING THE COUNT

Switch Off Foreign Key Constraint

I used to use this code regularly but when i found it for the first time it took me to read many pages to read after getting the code i thought this would be useful for all people like me who want to Switch off the Foreign key Constraint in their tables

This is helpful when you are actually want to create tables irrespective of the Foreign key constraint

To Turn Off - SET FOREIGN_KEY_CHECKS = 0;

To Turn On - SET FOREIGN_KEY_CHECKS = 1;

OAuth 2.0

Now its time to Switch on the easier and secured version of OAuth Protocol OAuth 2.0 so here is the presentation i have made which makes u people easy to understand the Protocol and important points to have talk to the server

Presentation - Download

The presentation is based on the Oauth 2.0 written by the developers of Microsoft and Facebook on January 2012