Some PHP Exercises

What does an echo function do?
What is the difference between using single quotes and double quotes in the echo function?

The echo function

The echo function is used to print one or more variable in the output.
Syntax: echo variable-name;

Example inputs

1.
echo “smith”;
2.
$name = “Jones”;
echo $name;
3.
$name=”Natasha”;
echo “My name is $name”;
echo “
”
echo “What is yours?”;
4.
$name = “Robin”;
echo ‘My name is $name’
5.
echo ‘My’,’name’,’is’,’John’;

Example outputs:

1.
Smith
2.
Jones
3.
My name is Natasha
What is yours?
4.
My name is $name
5.
My name is John