What is the difference between echo and print in PHP?

In PHP, both echo and print are used to output strings. The main difference between them is:

• echo: It can take multiple parameters, does not return any value, and is slightly faster than print. It is not actually a function, so parentheses are optional.
• print: It can only take one argument, always returns 1, and is a language construct rather than a function, so parentheses are required.

It is generally recommended to use echo for outputting strings in PHP for its speed and simplicity.