This highly interactive course introduces you to fundamental programming concepts in PHP, one of the most popular languages in the world. It begins with a simple Hello world program and proceeds on to cover common concepts such as Conditional Statements, Loop Statements, and Logic in PHP. 

It then reflects upon the idea of Functions and Arrays, as well as the power they give to the programmer to write better code. 

Finally, it dives deeper in order to teach about advanced concepts such as Classes, Inheritance and Exception Handling in PHP. By the time you're done, you'll have a good grip on the basics of PHP, and will be ready to study advanced concepts.

Learn PHP from Scratch

If x=3 ,y=4, and z=6, what is the value of x, y, and z after executing the following code?
```php
<?php
if ($y + 2 == $z)
{
 $x = $x + 1;
}
else
{
 $z++;
}
?>

```

If x=3 ,y=4, and z=6, what is the value of x, y, and z after executing the following code?
<pre><code class="language-php">&lt;?php
if ($y + 2 == $z)
{
 $x = $x + 1;
}
else
{
 $z++;
}
?&gt;

</code></pre>

If originally x=2, y=1, and z=3, what is the value of x,y, and z after executing the following code?
```php
<?php
if ($y)
{
 $x = $x + 1;
 $z = $x + $y;
}
else
{
 $y--;
}
?>
```

If originally x=2, y=1, and z=3, what is the value of x,y, and z after executing the following code?
<pre><code class="language-php">&lt;?php
if ($y)
{
 $x = $x + 1;
 $z = $x + $y;
}
else
{
 $y--;
}
?&gt;
</code></pre>

If x=3 ,y=3, and z=6, what is the value of x, y, and z after executing the following code?
```php
<?php
if ($y + 2 == $z)
{
 $x = $x + 1;
}
else
{
 $z++;
}
?>

```

If x=3 ,y=3, and z=6, what is the value of x, y, and z after executing the following code?
<pre><code class="language-php">&lt;?php
if ($y + 2 == $z)
{
 $x = $x + 1;
}
else
{
 $z++;
}
?&gt;

</code></pre>

What will be displayed on the console at the end after the code below is executed?
```php
<?php
$x = 30;
$y = 20;
$result = $x > $y ? $x : $y;
echo $result;
?>
```

What will be displayed on the console at the end after the code below is executed?
<pre><code class="language-php">&lt;?php
$x = 30;
$y = 20;
$result = $x &gt; $y ? $x : $y;
echo $result;
?&gt;
</code></pre>

If originally x=1,y=2, and z=3, what is the value of x, y, and z after executing the following code?

```php
<?php
switch($x) {
 case 0: 
 			$x++;
 $z=$x+1;
 break;
 case 1: 
 			$y=$z+$x;
 break;
 default: 
 			$z=$z+$x;
} 
?>
```

If originally x=1,y=2, and z=3, what is the value of x, y, and z after executing the following code?
<pre><code class="language-php">&lt;?php
switch($x) {
 case 0: 
 			$x++;
 $z=$x+1;
 break;
 case 1: 
 			$y=$z+$x;
 break;
 default: 
 			$z=$z+$x;
} 
?&gt;
</code></pre>

Solve a short quiz to test your understanding of the conditional statements in PHP.

Getting Started

Variables

Operators

Conditional Statements

Loops

Functions

Strings

Arrays

PHP Assessment 1

Classes and Inheritance

Exception Handling

PHP Assessment 2

Quiz