PHP 7 use Statement

PHP 7 新特性PHP 7 New Features

PHP 7 can use a single use statement to import classes, functions, and constants from the same namespace:

Example

Example

// PHP versions before 7 require multiple use statements
use some\namespace\ClassA;
use some\namespace\ClassB;
use some\namespace\ClassC as C;

use function some\namespace\fn_a;
use function some\namespace\fn_b;
use function some\namespace\fn_c;

use const some\namespace\ConstA;
use const some\namespace\ConstB;
use const some\namespace\ConstC;

// PHP 7+ versions can use a single use to import classes from the same namespace
use some\namespace\{ClassA, ClassB, ClassC as C};
use function some\namespace\{fn_a, fn_b, fn_c};
use const some\namespace\{ConstA, ConstB, ConstC};
?>

PHP 7 新特性PHP 7 New Features

Other Extensions