What is the difference between print() and echo()?

• print() can be used as part of an expression, while echo() can’t
• echo() can be used as part of an expression, while print() can’t
• echo() can be used in the CLI version of PHP, while print() can’t
• print() can be used in the CLI version of PHP, while echo() can’t
• There’s no difference: there are alias
• I don’t know

Answer:
print() can be used as part of an expression, while echo() can’t