Question

我正在尝试学习更多PHP oop的东西 -

我在这里找到了下面的代码块......

我正在传递＆＃34; PC＆＃34;触发＆＃34;无效平台的构造函数＆＃34;异常 - 它被我添加的try catch块捕获，但随后调用printCode会得到一个＆＃34;未定义的索引＆＃34;我期望的错误＆＃34; PC＆＃34;不在数组platformArray ..

中

我的问题是处理所有这些异常/错误的正确方法是什么？你应该为每个函数都有一个try catch块吗？

<?php
include('Logger.php');

class Platform
{
    private static $platformArray = array (
        'ps3'  => array ('displayName' => 'playstation 3', 'function' => 'funcPS3'),
        'xbox' => array ('displayName' => 'Xbox', 'function' => 'funcXbox')
    );
    private        $type;

    public function __construct($log, $type)
    {
        try {
            if (!array_key_exists($type, self::$platformArray)) {
                throw new Exception("Invalid Platform type $type");
            }
            $this->type = $type;
        } catch (Exception $e) {
            $log->write_error_log("0", "good_bad_code1.php", $e->getMessage());
        }
    }

    public function printCode()
    {
        // This was a question embedded within your question, you can use
        // http://php.net/manual/en/function.call-user-func.php
        // and pass an instance with a method name.
        return call_user_func(array ($this, self::$platformArray[$this->type]));
    }

    private function funcPS3()
    {
        echo 'ps3 specific code';
    }

    private function funcXbox()
    {
        echo 'xbox specific code';
    }
}

php尝试捕获正确的用法

0 个答案: