Why is it recommended to use 'print' instead of 'echo' in certain PHP contexts?

Using 'print' instead of 'echo' is recommended in certain PHP contexts because 'print' is a language construct while 'echo' is a language construct and a statement. This means that 'print' has a return value, which can be useful in certain situations where you need to assign the output to a variable or use it in an expression. Additionally, 'print' is slightly slower than 'echo' because it always returns a value, so using 'echo' is more efficient when performance is a concern.

// Using 'print' instead of 'echo' in a context where a return value is needed
$output = print "Hello, World!";
echo $output; // Output: Hello, World!