Tech Touch Online: daily coding

====================================== data wise code (most recent at top)=======================================================
Tue May 08,2012

<?php 
	echo dirname (__FILE__);
	echo "<br/>";
	echo basename (__FILE__);
	echo "<br/>";
	echo $_SERVER['HTTP_HOST'] ;
	echo "<br/>";
	echo $_SERVER['REQUEST_URI']; 
	echo "<br/>";
	echo "http://" . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI']; 
	echo "<br/>";
	function url(){
	  $protocol = $_SERVER['HTTPS'] ? "https" : "http";
	  return $protocol . "://" . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'];
	}
	echo url();
	echo "<br/>";
	echo $_SERVER['SERVER_NAME'].$_SERVER['REQUEST_URI']
?>

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Mon May 07,2012

blog.php -- the controller code
	<?php 
	  class Blog extends CI_Controller
	  {
	    function __construct()//way of constructor declaration in  php 5 
	    {
	      parent::__construct();
	    }
	    function index ()
	    {
	      $this->load->model('model_welcome');
	      $content['companyNames']=$this->model_welcome->selectCompany();
	      $this->load->view('blog_view',$content);
	    }
	  }
	?>
	model class code
	<?php
	class Model_welcome extends CI_Model{
	  
	    function Model_welcome()
	    {
	      //parent::CI_Model();
	      $this->db_host = "192.168.0.105";
	      $this->db_port = "5432";
	      $this->db_name = "liveki20110914";
	      $this->db_user = "post-db";
	      $this->db_password = "post";
	      $this->conn_string = "host=$this->db_host port=$this->db_port dbname=$this->db_name user=$this->db_user password=$this->db_					    password";
	      $this->dbconn = @pg_pconnect($this->conn_string);
	    }
	  function selectCompany()
	    {
	      $s="select companyname from company";
	      return $this->execute_query($s); 
	    }
	    function execute_query($sql)
	    {  
	       $res = @pg_query($this->dbconn, $sql);
	       $arr = @pg_fetch_all($res);
	       return  $arr;
	    }
	} //end class Model_welcome
	?>
	view code
	<html>
	  <head>
	    <title> codeigniter with database connection   </title>
	  </head>
	  <body>
	    <h1> 
	       <?php 
		  foreach ($companyNames  as $value)
		  {echo $value['companyname']."<br/>";}
	       ?> 
	    </h1>
	  </body>
	</html>

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Thu May 03,2012

blog.php
	<?php 
	  class Blog extends CI_Controller
	  {
	    /*function Blog()   //way of constructor declaration in  php 4 
	    {
	      parent::CI_Controller();
	    }*/
	    function __construct()//way of constructor declaration in  php 5 
	    {
	      parent::__construct();
	    }
	    function index ()
	    {
	      //echo "welcome php "; // 1st i tested with this line
	      //$this->load->view('blog_view');// 2nd ly i tested with this line
	      $template['title']="my page title modified ";
	      $template['heading']="my page heading modified  ";
	      $template['whattodo']=array('codeigniter','raw php','postgresql');
	      $this->load->view('blog_view', $template);
	    }
	    function test()
	    {
	      echo "test function of blog";
	    }   
	  }
	?>

blog_view.php

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Wed May 02,2012

<?php 
		class BaseClass 
		{
			function __construct()
			{
				print "constructor in base class<br/>";
			}
		}
		class SubClass extends BaseClass
		{

function __construct()
			{
				parent::__construct();

print "construct in sub class<br/>";
			}
		}
		$baseclass= new BaseClass();
		$subclass= new SubClass();

function BaseClass ()
		{
			this->databasename="sample_db_assad";
			echo this-> databasename;
		}
		BaseClass();

?>

Tue May 01,2012

<?php 
		function foo ()
		{
			$numargs = func_num_args();
			echo "Number of arguments : ".$numargs ."<br/>";
			if ($numargs>=2)
			{
				echo "the second number is ". func_get_arg(1)."<br/>";
			}
			$arg_list=func_get_args();
			for ($i =0;$i<$numargs;$i++)
			{
				echo "argument $i is : ". $arg_list[$i]."<br/>"; 
			}
		    
		}
		foo(1,2,3);
	?>

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<?php 
		$info = array ('sun','red','summer');

list($star,$color,$season)=$info;
		echo $star . " is ".$color." in the ".$season ."<br/>"; 
	
		list ($star,,$season)=$info;
		echo $star. " comes in ".$season ."<br/>";

list (,,$session) = $info;
		echo $season . ", i like it "."<br/>";

foreach ($info as $value)
		{
			print  $value . "<br/>";
		}
	
		//$browser = get_browser(null, true );
		//print_r($browser);
		echo $_SERVER['HTTP_USER_AGENT'] . "\n\n";

$browser = get_browser(null, true);
		print_r($browser);
	?>

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Mon Apr 30, 2012

<?php 
	 class TestClassInPhp
		{
			var $name="this is an item test ";
			function setName( $nm)
				{
					$this->name=$nm;
				}
			function getName()
				{
					return $this->name . "<br/>";
				}
		}
		$tcip= new TestClassInPhp();
		$tcip->setName(" this is an another test item");
		print($tcip->getName());
		echo $tcip->getName();

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	template.html file
		<html>
		<head>
			<title> <?=$SYSN["title"] ?> </title>
		</head>
		<body>
			<h1><?=$SYSN["Headline"]?></h1>
			<p><?=$SYSN["Contents"]?></p>
		</body>
		</html>
	variable.php file
		<?php 
			$SYSN["title"]="this is a title for a webpage";
			$SYSN["Headline"]="our website shows some example of php code";
			$SYSN["Contents"]="Content of the webpage";
		?>
	index.php file
		<?php 
			include("test_variable_inphp_7_1.php");
			include("test_template_inphp_7_2.html");
		?>

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	<?php 
		class MyClass
		{
			const CONSTANT_VALUE ='a constant name';
		}
		$className = 'MyClass';
		echo "<b>simple use of :: (scope resolution)operator </b>".MyClass::CONSTANT_VALUE."<br/>";
	
		class ExampleSuperClass
		{
			static function classType()
			{
				return " Superclass";
			}

static function doSomething()
			{
				return "do something with " . self::classType() ;
			}
		}

class ExampleClass extends ExampleSuperClass
		{
			static function classType()
			{
				return "subclass";
			}
		}
		echo "<b>example of superclass , subclass and scope resolution operator :</b>".ExampleClass::doSomething();
	?>

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Monday, May 7, 2012

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