Voting

: min(two, three)?
(Example: nine)

The Note You're Voting On

Anonymous
13 years ago
The keyword 'use' has two different applications, but the reserved word table links to here.

It can apply to namespace constucts:

file1:
<?php namespace foo;
class
Cat {
static function
says() {echo 'meoow';} } ?>

file2:
<?php namespace bar;
class
Dog {
static function
says() {echo 'ruff';} } ?>

file3:
<?php namespace animate;
class
Animal {
static function
breathes() {echo 'air';} } ?>

file4:
<?php namespace fub;
include
'file1.php';
include
'file2.php';
include
'file3.php';
use
foo as feline;
use
bar as canine;
use
animate;
echo
\feline\Cat::says(), "<br />\n";
echo
\canine\Dog::says(), "<br />\n";
echo
\animate\Animal::breathes(), "<br />\n"; ?>

Note that
felineCat::says()
should be
\feline\Cat::says()
(and similar for the others)
but this comment form deletes the backslash (why???)

The 'use' keyword also applies to closure constructs:

<?php function getTotal($products_costs, $tax)
{
$total = 0.00;

$callback =
function (
$pricePerItem) use ($tax, &$total)
{

$total += $pricePerItem * ($tax + 1.0);
};

array_walk($products_costs, $callback);
return
round($total, 2);
}
?>

<< Back to user notes page

To Top