I have a function in php:
function importSomething(){
include_once('something.php');
}
How do i make it sot that the include_once has a global effect? That everything imported will be included in the global scope?
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I would like to have variables... but classes and functions will have to do now. If anything I could just add a static method in each of the class that gets the variables..Pwnna– Pwnna2011-05-10 02:02:25 +00:00Commented May 10, 2011 at 2:02
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5 Answers
You can return all the variables in the file like so...
function importSomething(){
return include_once 'something.php';
}
So long as something.php looks like...
<?php
return array(
'abc',
'def'
);
Which you could assign to a global variable...
$global = importSomething();
echo $global[0];
If you wanted to get really crazy, you could extract() all those array members into the scope (global in your case).
1 Comment
BoltClock
I guess hiding a solution in parentheses just doesn't cut it these days.
include() and friends are scope-restricted. You can't change the scope that the included content applies to unless you move the calls out of the function's scope.
I guess a workaround would be to return the filename from your function instead, and call it passing its result to include_once()...
function importSomething() {
return 'something.php';
}
include_once(importSomething());
It doesn't look as nice, and you can only return one at a time (unless you return an array of filenames, loop through it and call include_once() each time), but scoping is an issue with that language construct.
1 Comment
BoltClock
Have your function return an array of paths, perhaps. Then loop through all of them.
If you want ordinary variable definitions to be teleported into the global scope automatically, you could also try:
function importSomething(){
include_once('something.php');
$GLOBALS += get_defined_vars();
}
However, it if it's really just a single configuration array, I would also opt for the more explicit and reusable return method.
Comments
I know this answer is really late for this user, but this is my solution:
inside your function, simply declare any of the vars you need to ovewrite as global.
Example:
Need to have the $GLOBALS['text'] set to "yes":
Contents of index.php:
function setText()
{
global $text;
include("setup.php");
}
setText();
echo 'the value of $text is "'.$text.'"'; // output: the value of $text is "yes"
Contents of setup.php:
$text = "yes";
The solution is similar to mario's, however, only explicitely globally-declared vars are overwritten.
Comments
All variables brought in from an included file inherit current variable scope of the including line. Classes and functions take on global scope though so it depends what your importing.
http://uk.php.net/manual/en/function.include.php (Final Paragraph before example)
