[snip]
You're wrong. The include() and require() statements are only evaluated
when they are reached in your application code, so there is a big
difference between your two examples. In you use the second example the
code will only be included by PHP if the application logic enters the
case statement that contains the include() statement. Here's a quick
example to demonstrate this:
////////////
// 1.php
///////////
<?php
$include = 0;
if($include)
include('2.php');
hello();
?>
////////////
// 2.php
///////////
<?
function hello() {
print "Hello";
}
?>
Save those two snippets into files named 1.php and 2.php. Pull up 1.php
in your browser and you'll see that the hello() function is undefined.
[/snip]
This doesn't prove the case either way. It would be similar to writing
this code: <?php $include = 0;
if($include){
function hello() {
print "Hello";
}
}
hello();
?>
Which also throws an error. We looked a while and found nothing in the
documentation, so we ended up putting an error in the include file.
foo.php
<?
$include = "b";
switch ($include){
case "a":
include("foo2.php");
break;
case "b":
echo "bar";
break;
}
?>
foo2.php
<?
//note syntax error
echo "foo"
?>
Assumably, if includes were processed before the script was
executed, it would show a syntax error in foo2.php. We ran
the test (v 4.2.1) and no error was returned, so that pretty
much answers the question (READ: includes are not processed
until they are called).
Just out of curiosity, a lot of people had answers to this question, but
I couldn't find a shred of evidence in the
documentation. Did you do similar tests, hear from gurus, or something
of like? Or did I just miss it somewhere?
Regards,
Jesse R. Castro
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