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yakczh
V2EX  ›  PHP

怎么根据函数体和变量组装出来 Closure

  •  
  •   yakczh · Jun 16, 2014 · 3042 views
    This topic created in 4339 days ago, the information mentioned may be changed or developed.
    比如
    $f=function($test){

    echo $test;

    };
    $p="ldjfosjfsofj";

    有个函数 function call($func,$para){
    一般可以这样调用 $func($para);
    但这里能不能根据函数体和参数 组装出一个Closure呢?
    }
    1 replies    2014-06-16 10:09:34 +08:00
    foccy
        1
    foccy  
       Jun 16, 2014
    function make()
    {
    $params = func_get_args();
    $func = array_shift($params);
    return function() use ($func, $params) {
    return call_user_func_array($func, $params);
    };
    }

    $foo = 'Foo';

    $bar = 'Bar';

    $sayHi = function($to, $from) {
    echo 'Hi, ' . $to . '. I\'m ' . $from . '.';
    };

    $closure = make($sayHi, $foo, $bar);

    $closure(); // output: 'Hi, Foo, I'm Bar.'

    不知道是不是这个意思
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