Example: 1

	<?php

	$postedusername ="Alex";
	$databaseusername="Alex";

	if ($postedusername==$databaseusername))
	{
	echo "Welcome to PHP Academy";
	}

	?>

	
Example: 2

	<?php

	$postedusername ="Alex";
	$databaseusername="Alex";

	if ($postedusername+((2/5)+1)==(($databaseusername+1)/2))
	{
	echo "Welcome to PHP Academy";
	}

	?>




Example: 3

	<?php

	$postedusername ="Alex";
	$databaseusername="Alex";

	if ($postedusername+((2/5)+1)==(($databaseusername+1)/2)))
	{
	echo "Welcome to PHP Academy";
	}

	?>



Example: 4

	<?php

	$postedusername ="Alex";
	$databaseusername="Alex";

	if (a$postedusername+((2/5)+1)==(($databaseusername+1)/2))
	{
	echo "Welcome to PHP Academy";
	}

	?>


Example: 5

	<?php

	error_reporting(E_ALL); //demonstrate

	$data =$_GET['name'];
	if($data)
	{
	echo $data;
	}
	?>

Example: 6

	<?php

	error_reporting(E_ALL); //demonstrate

	echo $alex;

	$data =$_GET['name'];
	if($data)
	{
	echo $data;
	}
  	?>

Example: 7

	<?php

	error_reporting(E_ALL); //demonstrate

	$data =$_GET['name'];
	if($data)
	{
	echo $data;
	}
	?>

Example: 8

	<?php

	error_reporting(E_ALL); //demonstrate

	@$data =$_GET['name'];
	if($data)
	{
	echo $data;
	}
  
	?> 

Example: 9

	<?php

	$postedusername ="Alex";
	$databaseusername="Alex";

	if ($postedusername=$databaseusername)
	{
	echo "Welcome to PHP Academy"
	if($postedusername=="Alex")
	{
	echo "You own PHP Academy";
	}
	else
	{
	echo "Hellow, $name";
	}
	?>


Example: 10

	<?php

	$postedusername ="Alex";
	$databaseusername="Alex";

	if ($postedusername=$databaseusername)
	{
	echo "Welcome to PHP Academy";

	if($postedusername=="Alex")
	{
	echo "You own PHP Academy";
	}
	else
	{
	echo "Hellow, $name";
	}
	?>


Example: 11

	<?php

	$postedusername ="Alex";
	$databaseusername="Alex";

	if ($postedusername=$databaseusername)
	{
	echo "Welcome to PHP Academy";

	if($postedusername=="Alex")
	{
	echo "You own PHP Academy";
	}
	else
	{
	echo "Hellow, $name";
	}
	}

	?>


