PHP의 함수 변수 배열을 사용하여 코드 구조를 변경하는 방법(예제 포함)

private function makeXML($xmlName, $xmlNameParam)
{
    $requestData = null;
    switch ($xmlName) {
        // ...
        case 'sendOrder':
            $requestData = $this->sendOrder($xmlNameParam);
            break;
        case 'ecfareQuery':
            $requestData = $this->ecfareQuery($xmlNameParam);
            break;
        case 'getInterAV':
            $requestData = $this->getInterAV($xmlNameParam);
            break;
        // ...
    }
    
    return $requestData;
}

protected $arr = [];
public function __construct()
{
    // 初始化接口方法
    $this->arr = [
        'getAV'                    => 'getAV',
        'sendOrder'                => 'sendOrder',
        'ecfareQuery'              => 'ecfareQuery',
        'getInterAV'               => 'getInterAV',
        // ...
    ];
}

private function makeXML($xmlName, $xmlNameParam)
{
    $requestData = null;
    
    $fun = $this->arr[$xmlName];
    
    $requestData = $this->$fun($xmlNameParam);
    
    return $requestData;
}

function come() {                   //定义com函数
　　echo "来了<p>";
}
function go($name = "jack") {       //定义go函数
　　echo $name."走了<p>";
}
function back($string)              //定义back函数
{
　　echo "又回来了，$string<p>";
}
$func = "come";                     //声明一个变量，将变量赋值为“come”
$func();                            //使用变量函数来调用函数come()
$func = "go";                       //重新给变量赋值
$func("Tom");                       //使用变量函数来调用函数go()
$func = "back";                     //重新给变量赋值
$func("Lily");                      //使用变量函数来调用函数back();

<?php
class test
{
    public $arr = [];
    
    public function __construct()
    {
        $this->arr = array(
            &#39;func1&#39;=>&#39;func1&#39;,
            &#39;func2&#39;=>&#39;func2&#39;,
            &#39;func3&#39;=>&#39;func3&#39;,
            &#39;func4&#39;=>&#39;func4&#39;,
            &#39;func5&#39;=>&#39;func5&#39;,
        );
    }
    public function submit($func, $str)
    {
        $f = $this->arr[$func];
        $this->$f($str);
    }
    static public function func1($str)
    {
        print &#39;func1&#39; . &#39; &#39; . $str . "\n";
    }
    static public function func2($str)
    {
        print &#39;func2&#39; . &#39; &#39; . $str . "\n";
    }

    public function func3($str)
    {
        print &#39;func3&#39; . &#39; &#39; . $str . "\n";
    }
    private function func4($str)
    {
        print &#39;func4&#39; . &#39; &#39; . $str . "\n";
    }
    private function func5($str)
    {
        print &#39;func5&#39; . &#39; &#39; . $str . "\n";
    }
}
$t = new test();        // 实例化类
$f = $t->arr[&#39;func1&#39;];
test::$f(&#39;abc&#39;);        // func1 func2 是静态方法
$f = $t->arr[&#39;func2&#39;];
test::$f(&#39;abc&#39;);
$f = $t->arr[&#39;func3&#39;];  // func3 的调用
$t->$f(&#39;abc&#39;);
// func4 func5 的调用需要使用 submit 方法进行分发
$t->submit(&#39;func4&#39;, &#39;abc&#39;);
$t->submit(&#39;func5&#39;, &#39;bcd&#39;);