PHP5: How come an included function always echoes first if I call it?

Question

I\'ve got two files here:

ToBeIncludedFile.php

MainFile.php

Answer 1

The reason it echos first, is because it is called, and afterwards are the strings "concatenated" (more on that in a second):

What you want in ToBeIncludedFile.php is return "World!";, not echo.

Right now, this is what happens:

• You include the file, which doesn't print anything, this is correct.
• You do a concatenation of the string "Hello" and the return value of printOut(). That means, first that function is called:
• printOut() executes and prints "World!", returning nothing.
• Your main script then concatenates "Hello" with nothing and prints that.