Learn PHP basics with hands-on practice in hello world in PHP, variables in PHP, functions in PHP, arrays in PHP, PHP inheritance, PHP exceptions, and more.

This interactive course introduces you to the fundamentals of PHP programming, one of the most widely used languages in web development. Starting with a simple hello world in PHP, you’ll explore the basics, including PHP output, variables in PHP, and PHP data types. You’ll also learn about PHP constants, arithmetic operators, comparison operators, logical operators, and assignment operators.

The course progresses into conditional statements in PHP, PHP switch, and various loops such as PHP for loop, PHP while loop, and more. You will then dive deeper into functions in PHP, understand PHP variable scope, and learn PHP pass by reference or value. Additionally, you’ll gain a working knowledge of strings in PHP, PHP string operations, and handling arrays in PHP, including PHP multidimensional arrays.

In the advanced sections, you’ll explore classes in PHP, inheritance, constructors, and destructors, handling PHP exceptions with PHP throw and catch exceptions.

Learn PHP

The `new` keyword can be used to create an object of a Class?

The <code>new</code> keyword can be used to create an object of a Class?

The variable f below represents 

```
<?php

class Foo {
public $x = 100;
}

$f = new Foo;
echo "x is: ".$f->x;


?>
```

The variable f below represents
<pre><code>&lt;?php

class Foo {
public $x = 100;
}

$f = new Foo;
echo &quot;x is: &quot;.$f-&gt;x;


?&gt;
</code></pre>

`$this->member` for accessing static members (methods and properties).

<code>$this-&gt;member</code> for accessing static members (methods and properties).

A destructor needs to be called at the end of the program.

A destructor needs to be called at the end of the program.

class methods are not called correctly in main program

What is the error in the code below?

```
<?php

class Dog
{
 
 private $age= 3; 
 private static $name= "Ruffy"; 
 
 public function getAge(){
 return $this->age;
 }
 
 public function getName(){
 		return $this->name;
 }
 }
 
 
$obj = new Dog;

echo "Name is ". $obj->getName(); 
echo "Age is ". $obj->getAge(); 
 
 
?>


```

What is the error in the code below?
<pre><code>&lt;?php

class Dog
{
 
 private $age= 3; 
 private static $name= &quot;Ruffy&quot;; 
 
 public function getAge(){
 return $this-&gt;age;
 }
 
 public function getName(){
 		return $this-&gt;name;
 }
 }
 
 
$obj = new Dog;

echo &quot;Name is &quot;. $obj-&gt;getName(); 
echo &quot;Age is &quot;. $obj-&gt;getAge(); 
 
 
?&gt;


</code></pre>

Declaring a method or a property as protected allows external objects outside the class to access these methods or properties.

Declaring a method or a property as protected allows external objects outside the class to access these methods or properties.

There is no difference in a protected and public variable of a mother class in terms of accessibility and use for a derived class. 

Is this statement correct?

There is no difference in a protected and public variable of a mother class in terms of accessibility and use for a derived class.
Is this statement correct?

A derived class can change the definition of an inherited member.

A derived class can change the definition of an inherited member.

A short quiz to test your understanding of classes.

PHP Basics

PHP Variables

PHP Operators

PHP Conditional Statements

PHP Loops

PHP Functions

PHP Strings

PHP Arrays

PHP Assessment 1

PHP Classes

Exception Handling in PHP

PHP Assessment 2

Quiz