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advanced php uploaded
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‎1. Class and Object.php

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<?php
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class Mobile{
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public $model; // Properties
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function showModel(){
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echo "Model Number is: $this->model <br>";
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}
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}
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$samsung = new Mobile;
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$samsung->model="A8+";
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$samsung->showModel();
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$lg = new Mobile;
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$lg->model="G5";
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$lg->showModel();
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?>

‎10. Calling Parent Construct inside Child Construct1.php

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<?php
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// Child Class inherit Parent's Constructor
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class Father{
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function __construct(){
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echo "<br>Parent Constructor Called<br>";
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}
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}
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class Son extends Father{
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function __construct(){
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// Father::__construct();
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parent::__construct(); // calling Parent Class Constructor inside Child Class constructor
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echo "Child Constructor Called";
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}
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}
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$objS = new Son();
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?>

‎100. PDOPrepUpdateWithFormTable.php

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<?php
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// create variable for connection
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$dsn = "mysql:host=localhost; dbname=test_db";
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$db_user = "root";
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$db_password = "";
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// Create Connection with exception handling
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try {
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$conn = new PDO($dsn, $db_user, $db_password);
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$conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
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echo "Connected <br><hr>";
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}
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catch(PDOException $e) {
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echo "Connection Failed " . $e->getMessage();
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}
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if(isset($_REQUEST['update'])){
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// checking for empty field
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if(($_REQUEST['name'] == "") || ($_REQUEST['roll'] == "") || ($_REQUEST['address'] == "")){
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echo"<small>Fill all fields..</small><hr>";
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}
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else {
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// Using Named Placeholder
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$sql = "UPDATE student SET name = :name, roll = :roll, address = :address WHERE id= :id";
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// Prepared Statement
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$result = $conn->prepare($sql);
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// Bind Parameter to Prepared Statement
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$result->bindParam(':name', $name, PDO::PARAM_STR);
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$result->bindParam(':roll', $roll, PDO::PARAM_INT);
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$result->bindParam(':address', $address, PDO::PARAM_STR);
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$result->bindParam(':id', $id, PDO::PARAM_INT);
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// Variables and values
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$name = $_REQUEST['name'];
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$roll = $_REQUEST['roll'];
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$address = $_REQUEST['address'];
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$id = $_REQUEST['id'];
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// Execute Prepared Statement
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$result->execute();
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echo $result->rowCount() . " Row Updated <br>";
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// Close Prepared Statement
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unset($result);
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}
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}
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?>
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<meta http-equiv="X-UA-Compatible" content="ie=edge">
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<!-- Bootstrap CSS -->
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<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm"
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crossorigin="anonymous">
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<title>SIPL</title>
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</head>
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<body>
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<div class="container">
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<div class="row">
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<div class="col-sm-4">
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<?php
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if(isset($_REQUEST['edit'])){
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// SELECT with WHERE
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$sql = "SELECT * FROM student WHERE id = :id";
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// Prepare Statement
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$result = $conn->prepare($sql);
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// Bind parameter
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$result->bindParam(':id', $id);
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$id = $_REQUEST['id'];
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// Execute statement
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$result->execute();
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// Fetch Single row data
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$row = $result->fetch(PDO::FETCH_ASSOC);
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// Close Prepared Statement
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unset($result);
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}
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?>
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<form action="" method="POST">
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<div class="form-group">
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<label for="name">Name</label>
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<input type="text" class="form-control" name="name" id="name" value="<?php if(isset($row['name'])){ echo $row['name'];} ?>">
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</div>
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<div class="form-group">
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<label for="roll">Roll</label>
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<input type="text" class="form-control" name="roll" id="roll" value="<?php if(isset($row['roll'])){echo $row['roll'];} ?>">
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</div>
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<div class="form-group">
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<label for="address">Address</label>
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<input type="text" class="form-control" name="address" id="address" value="<?php if(isset($row['address'])){ echo $row['address'];} ?>">
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</div>
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<input type="hidden" name="id" value="<?php echo $row['id'] ?>">
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<button type="submit" class="btn btn-success" name="update">Update</button>
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</form>
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</div>
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<div class="col-sm-6 offset-sm-2">
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<?php
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// SELECT All Data
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$sql = "SELECT * FROM student";
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// Prepared Statement
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$result = $conn->prepare($sql);
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// Execute Prepared statement
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$result->execute();
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if($result->rowCount() > 0){
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echo '<table class="table">';
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echo "<thead>";
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echo "<tr>";
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echo "<th>ID</th>";
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echo "<th>Name</th>";
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echo "<th>Roll</th>";
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echo "<th>Address</th>";
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echo "<th>Action</th>";
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echo "</tr>";
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echo "</thead>";
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echo "<tbody>";
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// Fetch all table data
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while($row = $result->fetch(PDO::FETCH_ASSOC)){
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echo "<tr>";
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echo "<td>" . $row['id'] . "</td>";
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echo "<td>" . $row['name'] . "</td>";
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echo "<td>" . $row['roll'] . "</td>";
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echo "<td>" . $row['address'] . "</td>";
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echo '<td><form action="" method="POST"><input type="hidden" name="id" value=' . $row["id"] . '><input type="submit" class="btn btn-sm btn-warning" name="edit" value="Edit"></form></td>';
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echo "</tr>";
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}
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echo "</tbody>";
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echo "</table>";
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} else {
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echo "0 Results";
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}
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?>
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</div>
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</div>
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</div>
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<!-- Optional JavaScript -->
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<!-- jQuery first, then Popper.js, then Bootstrap JS -->
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<script src="https://code.jquery.com/jquery-3.2.1.slim.min.js" integrity="sha384-KJ3o2DKtIkvYIK3UENzmM7KCkRr/rE9/Qpg6aAZGJwFDMVNA/GpGFF93hXpG5KkN"
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crossorigin="anonymous"></script>
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<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.9/umd/popper.min.js" integrity="sha384-ApNbgh9B+Y1QKtv3Rn7W3mgPxhU9K/ScQsAP7hUibX39j7fakFPskvXusvfa0b4Q"
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crossorigin="anonymous"></script>
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<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js" integrity="sha384-JZR6Spejh4U02d8jOt6vLEHfe/JQGiRRSQQxSfFWpi1MquVdAyjUar5+76PVCmYl"
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crossorigin="anonymous"></script>
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</body>
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<?php
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// Close Prepared Statement
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unset($result);
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// Close Connection
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$conn = null
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?>
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</html>

‎11. Calling Parent Construct inside Child Construct2.php

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<?php
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class Father{
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public $a;
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function __construct($x){
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echo "<br>Parent Constructor Called<br>";
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$this->a = $x;
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echo $this->a;
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}
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}
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class Son extends Father{
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public $b;
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function __construct($x, $y){
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parent::__construct($x); //calling Parent Class Constructor inside Child Class constructor
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echo "<br>Child Constructor Called<br>";
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$this->b = $y;
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echo $this->b;
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}
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}
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$objS = new Son(10, 20);
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?>

‎12. AccessModifierPublic.php

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<?php
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// Public Property or Method Can be accessed from anywhere
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class Father{
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// var $a
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// $a
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public $a;
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// function displayParent()
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public function displayParent(){
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echo "Parent Function $this->a";
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}
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}
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$objF = new Father;
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$objF->a = 10; // accessing public property with object
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$objF->displayParent(); // accessing public method with object
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// class Son extends Father{
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// public function displayChild($x){
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// $this->a = $x; // acessing parent class public property
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// echo "Child Value is $this->a <br>";
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// $this->displayParent(); // accessing parent class public method
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// }
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// }
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// $obj = new Son;
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// $obj->displayChild(10);
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?>

‎13. AccessModifierPrivate.php

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<?php
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// Private Property or Method can be accessed only within same class
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// Private Property cannot be access outside class or with object
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// In Inheritance, Child Class cannot access Parent's Private Property or Method
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class Father{
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private $a; // Private Property
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public function displayParent(){ // private function displayParent()
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echo "Parent Function $this->a"; // can access private property here within same class
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}
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}
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$objF = new Father;
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$objF->a = 10; // Error: accessing Private property with object
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$objF->displayParent(); // accessing public method with object
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// class Son extends Father{
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// public function displayChild($x){
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// $this->a = $x; // Cant access parent class private property in child class
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// echo "Child Value is $this->a <br>";
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// $this->displayParent(); // accessing parent class public method
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// }
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// }
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// $obj = new Son;
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// $obj->displayChild(10);
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?>

‎14. AccessModifierProtected1.php

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<?php
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// Cannot access Protected Property or Method Outside Class or Object
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// Protected Property or Class can be accessed within same class and
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// Child Class can access Parent's or GrandParent's Protected Property or Method
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// For accessing parent's protected property syntax are:
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// parent::propertyName or ClassName::propertyName
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class Father{
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protected $a; // Protected Property
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public function displayParent(){ // protected function displayParent()
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echo "Parent Function $this->a";
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}
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}
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$objF = new Father;
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$objF->a = 10; // Error: accessing Protected property with object
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$objF->displayParent(); // accessing public method with object
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// class Son extends Father{
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// public function displayChild($x){
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// $this->a = $x; // Can access parent class protected property in child class
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// echo "Child Value is $this->a <br>";
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// $this->displayParent(); // accessing parent class public method
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// }
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// }
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// $obj = new Son;
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// $obj->displayChild(10);
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?>

‎15. AccessModifierProtected2.php

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<?php
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// Cannot access Protected Property or Method Outside Class or Object
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// Protected Property or Class can be accessed within same class and
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// Child Class can access Parent's or GrandParent's Protected Property or Method
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// For accessing parent's protected property syntax are:
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// parent::propertyName or ClassName::propertyName
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class Father{
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protected $a; // Protected Property
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protected function displayParent(){ // protected function displayParent()
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echo "Parent Function $this->a";
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}
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}
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class Son extends Father{
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}
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class GrandSon extends Son {
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public function displayGrandChild($x){
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$this->a = $x; // Can access Grandparent class protected property in Grandchild class
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echo "Child Value is $this->a <br>";
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$this->displayParent(); // accessing Grandparent class Protected method
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}
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}
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$obj = new GrandSon;
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$obj->displayGrandChild(10);
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?>

‎16. Constructor with Protecte.php

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<?php
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class Father{
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public $a;
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protected function __construct($x){
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echo "<br>Parent Constructor Called<br>";
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$this->a = $x;
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echo $this->a;
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}
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}
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class Son extends Father{
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public $b;
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function __construct($x, $y){
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parent::__construct($x); // calling Parent Class Constructor inside Child Class constructor
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echo "<br>Child Constructor Called<br>";
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$this->b = $y;
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echo $this->b;
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}
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}
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$objS = new Son(10, 20);
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?>

‎17. static Property.php

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<?php
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class Father{
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public static $a = 10;
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public function disp(){
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echo self::$a;
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}
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}
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// accessing static property outside class
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Father::$a=20;
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$obj = new Father;
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$obj->disp();
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?>

‎18. static method.php

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<?php
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class Father{
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public static function disp(){
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echo "Hellow saminfratech";
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}
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}
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Father::disp(); // accessing static method without object
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?>

‎19. PassingvaluetoStaticMethod.php

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<?php
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class Father{
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public static function disp($nm){
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echo "Hellow " . $nm;
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}
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}
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Father::disp("Saminfratech");
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?>

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