[PHP] q: extract() and get_defined_vars()
am I assuming correctly that get_defined_vars() returns an array pretty much like the $GLOBALS array? If I call extract() inside of a function, then the variables it creates will be local to that function, correct? OK, so, is there a way to get extract() to define those variables as global, from within a function? -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] q: extract() and get_defined_vars()
Hello,
This is a reply to an e-mail that you wrote on Sat, 28 Jun 2003 at 01:41,
lines prefixed by '' were originally written by you.
If I call extract() inside of a function, then the variables it
creates will
be local to that function, correct? OK, so, is there a way to get
extract()
to define those variables as global, from within a function?
Yes it is, you must tell the function to treat the relevant variables as
globals though, here is a way of doing it:
function Foo(){
$theArray = array('var1'='testing', 'var2'='testing2');
foreach($theArray as $varname=$value){
global $$varname;
}
extract($theArray);
}
Foo();
echo $var1BR /$var2;
The above code outputs testingBR /testing2.
All the best,
David.
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Re: [PHP] q: extract() and get_defined_vars()
Yes it is, you must tell the function to treat the relevant variables as
globals though, here is a way of doing it:
function Foo(){
$theArray = array('var1'='testing', 'var2'='testing2');
foreach($theArray as $varname=$value){
global $$varname;
}
extract($theArray);
}
Foo();
echo $var1BR /$var2;
The above code outputs testingBR /testing2.
Pretty sneaky. But at this point, why bother with the extract() at all?
wouldn't this do the same thing:
function Foo(){
$theArray = array('var1'='testing', 'var2'='testing2');
foreach($theArray as $varname=$value){
$GLOBALS[$varname] = $value;
}
}
Which is what I am already doing...
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Re: [PHP] q: extract() and get_defined_vars()
Hello,
This is a reply to an e-mail that you wrote on Sat, 28 Jun 2003 at 02:01,
lines prefixed by '' were originally written by you.
Pretty sneaky. But at this point, why bother with the extract() at
all?
wouldn't this do the same thing:
function Foo(){
$theArray = array('var1'='testing', 'var2'='testing2');
foreach($theArray as $varname=$value){
$GLOBALS[$varname] = $value;
}
Which is what I am already doing...
Yes, good point. Also that avoids using variable variables which produces
much easier to read code.
David.
--
phpmachine :: The quick and easy to use service providing you with
professionally developed PHP scripts :: http://www.phpmachine.com/
Professional Web Development by David Nicholson
http://www.djnicholson.com/
QuizSender.com - How well do your friends actually know you?
http://www.quizsender.com/
(developed entirely in PHP)
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