Saturday, 26 November 2016

Background related CSS code

(1)background color :

<!DOCTYPE html>

<html>

<head>

<style>

body {

background-color: #b0c4de;

}

</style>

</head>

<body>

<p>Hello world! This is a Vissicomp.com example.</p>

</body>

</html>

(2)Background-image :

(a)<!DOCTYPE html>

<html>

<head>

<style>

body {

}

</style>

</head>

<body>

<h1>Hello World!</h1>

</body>

</html>

(b) background-repeat: repeat-x;

<!DOCTYPE html>

<html>

<head>

<style>

body {

background-repeat: repeat-x;

}

</style>

</head>

<body>

<h1>Hello World!</h1>

</body>

</html>

(c) background-repeat: no-repeat;

<!DOCTYPE html>

<html>

<head>

<style>

body {

background-repeat: no-repeat;

}

</style>

</head>

<body>

<h1>Hello World!</h1>

<p>Vissicomp background image example.</p>

<p>The background image is only showing once, but it is disturbing the reader!</p>

</body>

</html>

(d) background-position: right top;

<!DOCTYPE html>

<html>

<head>

<style>

body {

background-image:url("img_tree.png");

background-repeat: no-repeat;

background-position: right top;

margin-right: 200px;

}

</style>

</head>

<body>

<h1>Hello World!</h1>

<p> Vissicomp background no-repeat, set position example.</p>

<p>Now the background image is only shown once, and positioned away from the text.</p>

<p>In this example we have also added a margin on the right side, so the background image will never disturb the text.</p>

</body>

</html>

(e) background-position: center;

<!DOCTYPE html>

<html>

<head>

<style>

body {

background-repeat: no-repeat;

background-attachment : fixed;

background-position :center;

}

</style>

</head>

<body>

</body>

</html>

(f) background-repeat: repeat-y;

<!DOCTYPE html>

<html>

<head>

<style>

body {

background-repeat: repeat-y;

}

</style>

</head>

<body>

<p>repeat-y will repeat a background image only vertically.</p>

</body>

</html>

Initial code:

div {

background-image:url(smiley.gif);
background-repeat:initial;
}

div {

    background-image:url(smiley.gif);

    background-repeat:repeat;

}

(g)background-size:

  <!DOCTYPE html>

<html>

<head>

<style>

body {

    background: url("img_flwr.gif");

    background-size: 80px 60px;

    background-repeat: no-repeat;

    padding-top: 40px;

</style>

</head>

<body>

<p>Lorem ipsum dolor sit amet, consectetuer adipiscing elit, sed diam nonummy nibh euismod tincidunt ut laoreet dolore magna aliquam erat volutpat. Ut wisi enim ad minim veniam, quis nostrud exerci tation ullamcorper suscipit lobortis nisl ut aliquip ex ea commodo consequat.</p>

<p>Original image:

<img src="img_flwr.gif" alt="Flowers" width="224" height="162" />

</p>

</body>

</html>

Thursday, 3 November 2016

How To Create Desktop Application Using Php

How To Create Desktop Application Using Php there are many techniques and tools given below:

Phalanger :

http://www.php-compiler.net/

http://wiki.php-compiler.net/Phalanger_Wiki

http://phalanger.codeplex.com/

Phalanger is a project which was started at Charles University in Prague and was supported by Microsoft. It compiles source code written in the PHP scripting language into CIL (Common Intermediate Language) byte-code. It handles the beginning of a compiling process which is completed by the JIT compiler component of the .NET Framework. It does not address native code generation nor optimization. Its purpose is to compile PHP scripts into .NET assemblies, logical units containing CIL code and meta-data.

Bambalam :

http://www.bambalam.se/bamcompile/

Bambalam PHP EXE Compiler/Embedder is a free command line tool to convert PHP applications to standalone Windows .exe applications. The exe files produced are totally standalone, no need for php dlls etc. The php code is encoded using the Turck MMCache Encode library so it's a perfect solution if you want to distribute your application while protecting your source code. The converter is also suitable for producing .exe files for windowed PHP applications (created using for example the WinBinder library). It's also good for making stand-alone PHP Socket servers/clients (using the php_sockets.dll extension). It's NOT really a compiler in the sense that it doesn't produce native machine code from PHP sources, but it works!

ZZEE PHPExe :

http://www.zzee.com/phpexe/

ZZEE PHPExe compiles PHP, HTML, Javascript, Flash and other web files into Windows GUI exes. You can rapidly develop Windows GUI applications by employing the familiar PHP web paradigm. You can use the same code for online and Windows applications with little or no modification. It is a Commercial product.

phc-win :

http://wiki.swiftlytilting.com/Phc-win

The PHP extension bcompiler is used to compile PHP script code into PHP bytecode. This bytecode can be included just like any php file as long as the bcompiler extension is loaded. Once all the bytecode files have been created, a modified Embeder is used to pack all of the project files into the program exe.

Requires

php5ts.dll
php_win32std.dll
php_bcompiler.dll
php-embed.ini

ExeOutput :

http://www.exeoutput.com/

Commercial

WinBinder :

http://winbinder.org/

WinBinder is an open source extension to PHP, the script programming language. It allows PHP programmers to easily build native Windows applications, producing quick and rewarding results with minimum effort. Even short scripts with a few dozen lines can generate a useful program, thanks to the power and flexibility of PHP.

PHPDesktop :

http://code.google.com/p/phpdesktop/

PHP Desktop is an open source project founded by Czarek Tomczak in 2012 to provide a way for developing native desktop applications using web technologies such as PHP, HTML5, JavaScript & SQLite. This project is more than just a PHP to EXE compiler, it embeds a web-browser (Internet Explorer or Chrome embedded), a Mongoose web-server and a PHP interpreter. The development workflow you are used to remains the same, the step of turning an existing website into a desktop application is basically a matter of copying it to "www/" directory. Using SQLite database is optional, you could embed mysql/postgresql database in application's installer.

PHP Nightrain :

http://www.naetech.com/php-nightrain

Using PHP Nightrain you will be able to deploy and run HTML, CSS, JavaScript and PHP web applications as a native desktop application on Windows, Mac and the Linux operating systems. Popular PHP Frameworks (e.g. CakePHP, Laravel, Drupal, etc…) are well supported!

phc-win "fork" :

http://github.com/RDashINC/phc-win

A more-or-less forked version of phc-win, it uses the same techniques as phc-win but supports almost all modern PHP versions. (5.3, 5.4, 5.5, 5.6, etc) It also can use Enigma VB to combine the php5ts.dll with your exe, aswell as UPX compress it. Lastly, it has win32std and winbinder compilied statically into PHP.

EDIT :

Another option is to use

http://www.appcelerator.com/products/titanium-cross-platform-application-development/

an online compiler that can build executables for a number of different platforms, from a number of different languages including PHP

TideSDK :

http://www.tidesdk.org/

TideSDK is actually the renamed Titanium Desktop project. Titanium remained focused on mobile, and abandoned the desktop version, which was taken over by some people who have open sourced it and dubbed it TideSDK.

Generally, TideSDK uses HTML, CSS and JS to render applications, but it supports scripted languages like PHP, as a plug-in module, as well as other scripting languages like Python and Ruby.

Monday, 25 July 2016

Cookies-Session Concept in php

A session is a way to store information (in variables) to be used across multiple pages.

Unlike a cookie, the information is not stored on the users computer.

Setting Cookies with PHP :

PHP provided setcookie() function to set a cookie. This function requires upto six arguments and should be called before <html> tag. For each cookie this function has to be called separately.

setcookie(name, value, expire, path, domain, security);

Here is the detail of all the arguments:

Name - This sets the name of the cookie and is stored in an environment variable called HTTP_COOKIE_VARS. This variable is used while accessing cookies.

Value -This sets the value of the named variable and is the content that you actually want to store.

Expiry - This specify a future time in seconds since 00:00:00 GMT on 1st Jan 1970. After this time cookie will become inaccessible. If this parameter is not set then cookie will automatically expire when the Web Browser is closed.

Path -This specifies the directories for which the cookie is valid. A single forward slash character permits the cookie to be valid for all directories.

Domain - This can be used to specify the domain name in very large domains and must contain at least two periods to be valid. All cookies are only valid for the host and domain which created them.

Security - This can be set to 1 to specify that the cookie should only be sent by secure transmission using HTTPS otherwise set to 0 which mean cookie can be sent by regular HTTP.

(1) To set save file name as : "cookies.php".....

<?php

setcookie("name", "John Watkin", time()+60, "/","", 0);

setcookie("age", "36", time()+60, "/", "", 0);

<html>

<head>

<title>Setting Cookies with PHP</title>

</head>

<body>

</body>

</html>

(2) To display cookies:

<?php

echo $_COOKIE["name"];

What is a PHP Session?:

When you work with an application, you open it, do some changes, and then you close it. This is much like a Session. The computer knows who you are. It knows when you start the application and when you end. But on the internet there is one problem: the web server does not know who you are or what you do, because the HTTP address doesn't maintain state.

Session variables solve this problem by storing user information to be used across multiple pages (e.g. username, favorite color, etc). By default, session variables last until the user closes the browser.

So; Session variables hold information about one single user, and are available to all pages in one application.

Start A PHP Session:

A session is started with the session_start() function.

Session variables are set with the PHP global variable: $_SESSION.

Now, let's create a new page called "demo_session1.php". In this page, we start a new PHP session and set some session variables:

Example

<?php
// Start the session
session_start();
?>
<!DOCTYPE html>
<html>
<body>

<?php
// Set session variables
$_SESSION["favcolor"] = "green";
$_SESSION["favanimal"] = "cat";
echo "Session variables are set.";
?>

</body>
</html>

Get PHP Session Variable Values:

Next, we create another page called "demo_session2.php". From this page, we will access the session information we set on the first page ("demo_session1.php").

Notice that session variables are not passed individually to each new page, instead they are retrieved from the session we open at the beginning of each page (session_start()).

Also notice that all session variable values are stored in the global $_SESSION variable:

Example

<?php
session_start();
?>
<!DOCTYPE html>
<html>
<body>

<?php
// Echo session variables that were set on previous page
echo "Favorite color is " . $_SESSION["favcolor"] . ".<br>";
echo "Favorite animal is " . $_SESSION["favanimal"] . ".";
?>

</body>
</html>

Destroy A PHP Session

To remove all global session variables and destroy the session, use session_unset() and session_destroy():

Example

<?php
session_start();
?>
<!DOCTYPE html>
<html>
<body>

<?php
// remove all session variables
session_unset();

// destroy the session
session_destroy();
?>

</body>
</html>

================================================================================================================================================

Write code for session hit counter:

<?php
session_start();

if(!isset($_SESSION['count']))
{
$_SESSION['count']=0;
}
else
{
$_SESSION['count']++;
}
echo $_SESSION['count'];
?>
==============================================================================================================================================

Simple use of cookies :

(1)write Code to check cookies if not set then prevent to access content. & redirect to you “form.php” page:

<html>

<head>

<title>Accessing Cookies with PHP</title>

</head>

<body>

<?php

if( isset($_COOKIE[“name”]))

{

echo “Welcome ” . $_COOKIE[“name”] . “<br />”;

}

else

{

header(‘Location:form.php’);

}

</body>

</html>

(2)WRITE CODE FOR form.php where we set cookies..after visiting…

<?php

setcookie(“name”, “John Watkin”, time()+3600, “/”,””, 0);

Name <input type=text name=name>

email<input type=text name=email>

contact<input type=text name=contact>

</form>

From Validation to Prevent SQL Injection Attack

From Validation to Prevent SQL Injection Attack :

<html>

<head>

<style>

.error {color: #FF0000;}

</style>

</head>

<body>

<?php

// define variables and set to empty values

$nameErr = $emailErr = $genderErr = $websiteErr = "";

$name = $email = $gender = $class = $course = $subject = "";

if ($_SERVER["REQUEST_METHOD"] == "POST") {

if (empty($_POST["name"])) {

$nameErr = "Name is required";

}

else

{

$name = test_input($_POST["name"]);

}

if (empty($_POST["email"])) {

$emailErr = "Email is required";

}

else

{

$email = test_input($_POST["email"]);

// check if e-mail address is well-formed

if (!filter_var($email, FILTER_VALIDATE_EMAIL)) {

$emailErr = "Invalid email format";

}

if (empty($_POST["course"])) {

$course = "";

}

else

{

$course = test_input($_POST["course"]);

}

if (empty($_POST["class"])) {

$class = "";

}

else

{

$class = test_input($_POST["class"]);

}

if (empty($_POST["gender"])) {

$genderErr = "Gender is required";

}

else

{

$gender = test_input($_POST["gender"]);

}

if (empty($_POST["subject"])) {

$subjectErr = "You must select 1 or more";

}

else

{

$subject = $_POST["subject"];

}

function test_input($data) {

$data = trim($data);

$data = stripslashes($data);

$data = htmlspecialchars($data);

return $data;

}

<h2>Absolute classes registration</h2>

<p><span class="error">* required field.</span></p>

<table>

<tr>

</td>

</tr>

<tr>

</td>

</tr>

<tr>

</td>

</tr>

<tr>

<td>Classes:</td>

</tr>

<tr>

<td>Gender:</td>

<td>

<input type="radio" name="gender" value="female">Female

<input type="radio" name="gender" value="male">Male

</td>

</tr>

<tr>

<td>Select:</td>

<td>

<option value="Android">Android</option>

<option value="Hadoop">Hadoop</option>

<option value="VB script">VB script</option>

</select>

</td>

</tr>

<tr>

<td>Agree</td>

<?php if(!isset($_POST['checked'])){ ?>

<?php } ?>

</tr>

<tr>

<td>

</td>

</tr>

</table>

</form>

<?php

echo "<h2>Your given values are as :</h2>";

echo ("<p>Your name is $name</p>");

echo ("<p> your email address is $email</p>");

echo ("<p>Your class time at $course</p>");

echo ("<p>your class info $class </p>");

echo ("<p>your gender is $gender</p>");

for($i=0; $i < count($subject); $i++)

{

echo($subject[$i] . " ");

}

</body>

</html>

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Saturday, 26 November 2016

Background related CSS code

Thursday, 3 November 2016

How To Create Desktop Application Using Php

How To Create Desktop Application Using Php there are many techniques and tools given below:

Phalanger :

Monday, 25 July 2016

Cookies-Session Concept in php

Start A PHP Session:

Example

Get PHP Session Variable Values:

Example

Destroy A PHP Session

Example

From Validation to Prevent SQL Injection Attack

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