Description:
------------
The documentation page for the include() construct states  
that:   
  
"If there are functions defined in the included file, they  
can be used in the main file independent if they are  
before return() or after. If the file is included twice,  
PHP 5 issues fatal error because functions were already  
declared, while PHP 4 doesn't complain about it."  
  
However, PHP 4 _does_ "complain" (which it should) about  
it as demonstrated below.  Therefore, I believe the second  
sentence in the quote above should read, "If the file is  
included twice, a  fatal error is issued because functions  
were already declared."  
  
  

Reproduce code:
---------------
a.php:
<?php
        include("b.php");
        include("b.php");
?>

b.php:
<?php
        function foo() {
                echo "I've been included!\n";
        }
?>

Running a.php, PHP 4.3.4 dies with:
Fatal error: Cannot redeclare foo() (previously declared in /tmp/b.php:3) in /tmp/b.php on line 2