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Home Backend Development PHP Tutorial 这样一段python,如何转成php实现?

这样一段python,如何转成php实现?

Jun 06, 2016 pm 08:15 PM
php python

<code>def f1(f2):
    def f3():
        return f2</code>
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就是函数里面的函数能访问到f2

php相关参考
https://segmentfault.com/q/1010000004588881?_ea=659685

回复内容:

<code>def f1(f2):
    def f3():
        return f2</code>
Copy after login
Copy after login

就是函数里面的函数能访问到f2

php相关参考
https://segmentfault.com/q/1010000004588881?_ea=659685

不懂php,不过你说的是“闭包”,详情自行搜索。

<code>
function c($msg){
  return function() use($msg) {
    echo $msg;
  };  
}

$a = c("hello world");
$a();

?></code>
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<code><?php function f1($a){
    function f2($b){
        echo "$b\n";
    }
    f2($a);
}
f1(3);</code></code>
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