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PHP 函数语法介绍一_php技巧

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Release： 2016-05-17 09:32:06
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复制代码 代码如下:

function getAdder($x)
{
return function ($y) use ($x) {
return $x + $y;
};
}
$adder = getAdder(8);
echo $adder(2); // prints "10"

在这里， getAdder （ ）函数创建一个封闭使用参数$ × （关键字“使用”势力越来越变量上下文） ，它需要额外的参数$ Y和返回到调用。这种功能可以储存，因为作为参数到另一个功能等详细内容见兰布达职能和关闭的RFC 。
Related labels：
php function
source：php.cn
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