PHP编程：PHP实现的简单异常处理类示例

<?php
header('content-type:text/html;charset=UTF-8');
// 创建email异常处理类
class emailException extends exception
{
}
// 创建pwd异常处理类
class pwdException extends exception
{
  public function __tostring(){
    return $this->getMessage().'in file:'.$this->getFile().'on line:'.$this->getLine();
  }
}
function reg($reginfo = null)
{
  // 依据不同错误抛出不同异常
  if (empty($reginfo) || !isset($reginfo)) {
    throw new Exception('参数非法');
  }
  if (empty($reginfo['email'])) {
    throw new emailException('邮件为空');
  }
  if ($reginfo['pwd'] != $reginfo['repwd']) {
    throw new pwdException('两次密码不一致!');
  }
}
// 接收不同异常,并针对性处理!
try {
  reg(array('email' => '1078789950@qq.com', 'pwd' => '123', 'repwd' => '1231' ));
} catch (Exception $e) {
  echo $e ->getMessage();
} catch (emailException $ee) {
  echo $ee ->getMessage();
} catch (pwdException $ep) {
  echo $ep;
}