php_demo/14错误和异常处理/02继承异常类.php

<?php
    class emailException extends Exception{
        function __toString()
        {
            return "email is null  ".$this->getFile().' '.$this->getLine().'<br>';
        }
    }

    class nameException extends Exception{}

    function reg($reg){

        if (empty($reg['email'])) {     //如果数组reg里键email的值是空的
            throw new emailException("email is null",1);//2.抛出异常后推出了函数
        }

        echo "-----".'<br>';    //代码没有执行到这里

        if (empty($reg['name'])) {
            throw new nameException('name is null',2);
        }

        echo "-----".'<br>';
    }

    try {
        $reg = array('phone'=>'12344544');
        reg($reg);  //1.传入的数组里没有eamil和name
    } catch (emailException $e) {   //3.捕获的是email is null这个异常
        echo $e;
    } catch (nameException $e) {    //代码没有进入这个catch
        echo $e->getMessage().'<br>';
        echo $e->getCode().'<br>';
    } finally { //4.最后进入finally
        echo "finally";
    }


?>