Example: 1

	<?php

	if(1 > 1)
	{
	echo "True";
	}

	else
	{
	echo "False";
	}

	?>  

	
Example: 2


	<?php

	if( 1 > 1 || 1==1 )
	{
	echo "True";
	}

	else
	{
	echo "False";
	}

	?>



Example: 3


	<?php

	if( 1 > 1 && 1==1 )
	{
	echo "True";
	}

	else
	{
	echo "False";
	}

	?>


Example: 4


	<?php

	if( 1 >= 1 && 1==1 )
	{
	echo "True";
	}

	else
	{
	echo "False";
	}

	?>



Example: 5

	
	<?php

	$username = "alex";
	$password = "abc";
	if( $username && $password )
	{
	echo "Ok.";
	}

	else
	{
	echo "You forgot to fill out a Field.";
	}

	?>



Example: 6

	
	<?php

	$username = "alex";
	$password = "";

	if( $username && $password )
	{
	echo "Ok.";
	}

	else
	{
	echo "You forgot to fill out a Field.";
	}

	?>


Example: 7

	<?php

	$username = "alex";
	$password = "";

	if( $username )
	{
	echo "Ok.";
	}

	else
	{
	echo "You forgot to fill out a Field.";
	}

	?>


Example: 8

	<?php

	$username = "alex";
	$password = "";

	if( $username || $password )
	{
	echo "Ok.";
	}

	else
	{
	echo "You forgot to fill out a Field.";
	}

	?>



Example: 9


	<?php

	$username = "";
	$password = "";

	if( $username || $password )
	{
	echo "Ok.";
	}

	else
	{
	echo "Nothing.";
	}

	?>

