是否可以在PHP中咖喱方法调用? [英] Is it possible to curry method calls in PHP?

问题描述

我有一个为WSDL文件生成的 SoapClient 实例.除了其中一种方法调用外，所有其他方法都要求将用户名和密码传递给id.

I have a SoapClient instance generated for a WSDL file. All except one of the method invocations require the username and the password to be passed id.

有什么方法可引起方法调用，以便我可以省略用户名和密码?

Is there any way of currying the method calls so that I can omit the username and password?

推荐答案

从php 5.3开始，您可以存储变量中的匿名函数.该匿名函数可以使用一些预定义的参数来调用原始"函数.

As of php 5.3 you can store an anonymous function in a variable. This anonymous function can call the "original" function with some predefined parameters.

function foo($x, $y, $z) {
  echo "$x - $y - $z";
}

$bar = function($z) {
  foo('A', 'B', $z);
};

$bar('C');

您还可以使用闭包参数化匿名函数的创建

edit: You can also use a closure to parametrise the creation of the anonymous function

function foo($x, $y, $z) {
  echo "$x - $y - $z";
}

function fnFoo($x, $y) {
  return function($z) use($x,$y) {
    foo($x, $y, $z);
  };
}

$bar = fnFoo('A', 'B');
$bar('C');

edit2:这也适用于对象

edit2: This also works with objects

class Foo {
  public function bar($x, $y, $z) {
    echo "$x - $y - $z";
  }
}

function fnFoobar($obj, $x, $z) {
  return function ($y) use ($obj,$x,$z) {
    $obj->bar($x, $y, $z);
  };
}

$foo = new Foo;
$bar = fnFoobar($foo, 'A', 'C');
$bar('B');

但是，如果您想增强"一个完整的类，则使用__call()和包装器类的其他建议可能会更好.

But the other suggestions using __call() and a wrapper class may be better if you want to "enhance" a complete class.

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