note 104136 added to language.namespaces

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); } ?> ---- Server IP: 69.147.83.197 Probable Submitter: 184.39.6.84 ---- Manual Page -- http://www.php.net/manual/en/language.namespaces.php Edit -- https://master.php.net/note/edit/104136 Del: integrated -- https://master.php.net/note/delete/104136/integrated Del: useless -- https://master.php.net/note/delete/104136/useless Del: bad code -- https://master.php.net/note/delete/104136/bad+code Del: spam -- https://master.php.net/note/delete/104136/spam Del: non-english -- https://master.php.net/note/delete/104136/non-english Del: in docs -- https://master.php.net/note/delete/104136/in+docs Del: other reasons-- https://master.php.net/note/delete/104136 Reject -- https://master.php.net/note/reject/104136 Search -- https://master.php.net/manage/user-notes.php