Just looking up that extract function, the manual says it extracts into
the current symbol table. I assume that means that within foo() the
array would be extracted into local variables. Is that right?
-Steve
On Wednesday, September 26, 2001, at 06:50 AM, Alister wrote:
> Follow up to my own message:
>
> If you want to also skip even needing the empty 'array()' (new fianl
> example) - check if it is an array, and only do the first extract of
> the parameters if there's something there.
>
> <?php
> function foo($p='')
> {
> $foodefault = array(
> 'foo_fred'=> '<strong>default fred</strong>',
> 'foo_banana' => '<strong>default bananananana</strong>',
> );
> if (is_array($p))
> extract ($p, EXTR_PREFIX_ALL, 'foo'); // get values
> extract ($foodefault, EXTR_SKIP, "foo"); // get defaults
> echo "$foo_fred / $foo_banana";
> }
>
> echo "Both in place: ";
> foo(array('fred' => 'hello', 'banana' => 'world'));
> echo "<br /> Now with a missing param: ";
> foo(array('fred' => 'hello'));
> echo "<br /> Now both missing params: ";
> foo(array());
> echo "<br /> and with no array: ";
> foo();
> ?>
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