Archive for March, 2016

access private properties and pass variable form to php part 2

March 22nd, 2016

access private properties and pass variable form to php part 2

The part one shown you guys about how to use extract method for converted all post which submit by HTML form to array.

In this part I would present that bring variable from HTML from with method=”POST” to list in array and access private properties via method.

and you can see the new style of generated $_REQUEST:

function setvalue($key) {
if(isset($_REQUEST[$key])) echo $_REQUEST[$key];
}

if($_SERVER[‘REQUEST_METHOD’] == “POST”){
extract($_POST);

You can check below code for detail:

Cal1.php


<?php
class Cal1{

private $x;
private $y;

function __construct($a = NULL ,$b = NULL){
$this->x = $a;
$this->y = $b;
}

function sum() {
$sum = $this->x + $this->y;
return $sum;
}

function sub() {
return $this->x - $this->y;
}

function div() {
return $this->x / $this->y;
}

function mul() {
return $this->x * $this->y;
}

}
?>

Viewcal5.php

<?php
include ('libs/Cal1.php');
function setvalue($key) {
if(isset($_REQUEST[$key])) echo $_REQUEST[$key];
}
$result ="";
if($_SERVER['REQUEST_METHOD'] == "POST"){
extract($_POST);
$obj = new Cal1($a,$b);
$opt = end($_POST);
$o = array_search($opt,$_POST);
$result = $obj->{$o}();
}
?>
<!DOCTYPE html>
<head>
<title>Access to private properties</title>
</head>
<body>
<form action="<?php echo $_SERVER['PHP_SELF']; ?>" method="POST">
A: <input type="text" name="a" value="<?php setvalue("a");?>"><br />
B: <input type="text" name="b" value="<?php setvalue("b"); ?>"><br />
Result: <input type="text" value="<?php echo $result;?>" />
<input type="submit" name="sum" value="+" />
<input type="submit" name="sub" value="-" />
<input type="submit" name="mul" value="*" />
<input type="submit" name="div" value="/" />
</form>
</body>

access private properties and pass variable form to php part 1

March 17th, 2016

access private properties and pass variable form to php part 1

Below code is how to access private class by its method and pass through variable in HTML form to PHP code.

First we need coding class and assign the name of the file called Cal1.php.

Second we create HTML from with some variables and try to pass its to php code using extract() method and assign the file called viewcal1.php.

  • extract() method is the method that abstract the global variable $_POST after submit to array key in php.

Finally, you can test your code

Cal1.php

Cal1.php

 

 

 

 

 

 

 

 

 

 

viewcal1

viewcal1

access to private properties or methods in class

March 4th, 2016

This is the code instructed about how to access private properties by methong set and get (it is not related to magic method)

  • date_default_timezone_set(“Asia/Phnom_Penh”); it is php function to let us change our php time to our location time zone. example we are in Phnom Penh, Cambodia so we just this.
  • we have class Student and we have declared seven private properties. in case we want to set value to each properties we need to clear one method that received value from out (short example is setID($id)) after that if we want to get value of the properties at outside class we need to create the method get ( short example is getID().
    please have to check below example code for detail.
<?php
date_default_timezone_set("Asia/Phnom_Penh");
class Student {

private $id;
private $firstname;
private $lastname;
private $gender;
private $age;
private $dat;
private $classes;

function Student($classes){
$this->classes = "PHP OOP and Codeigniter";
$this->dat = date("d-m-Y h:i:s");
}

function getDate(){
return $this->dat;
}

function getClasses(){
return $this->classes;
}

function setId($id){
$this->id=$id;
return $this;
}

function getId() {
return $this->id;
}

function setFirstname($fname){
$this->firstname = $fname;
return $this;
}
function getFirstname(){
return $this->firstname;
}

function setLasttname($lname){
$this->lastname = $lname;
return $this;
}
function getLastname(){
return $this->lastname;
}

function setGender($gender){
$this->gender = $gender;
return $this;
}
function getGender(){
return $this->gender;
}

function setAge($age){
$this->age = $age;
return $this;
}
function getAge(){
return $this->age;
}
function getFullname(){
return $this->firstname." ".$this->lastname;
}

}

$obj = new Student();
echo $obj->setId("5678")->getID()."<br />";
$obj->setFirstname("NOV");
$obj->setLasttname("Piseth");
echo $obj->getFullname()."<br />";
echo $obj->setGender("Male")->getGender()."<br />";
echo $obj->setAge("35")->getAge()."<br />";
echo $obj->getClasses()."<br />";
echo $obj->getDate();
?>

php class and it properties

March 4th, 2016

In this step I would like to show some identify php class and it properties also identify object of the class as below:

  • class person is identify the class name
  • var $name; var $age; var $gender is proerties of the class person
  • $obj = new Person(); identify variable $obj as object of class Person
  • so $obj can access all properties and method in class person

<?php
class Person {
var $name;
var $age;
var $gender;
}
$obj = new Person();

$obj->name ="Dara";
$obj->age = 15;
$obj->gender = "Male";

echo "Person Name: $obj->name <br />";
echo "Person Age: $obj->age <br />";
echo "Person Gender: $obj->gender <br />";
?>

Facebook Auto Publish Powered By : XYZScripts.com