<?
php
$a =
null;
//没有接收一场处理
if(
$a == 0
) {
throw new DbException('val is empty'
);
}
exit();
// 接收异常并处理
try {
if(
$a == 0
) {
throw new DbException('val is empty'
);
}
} catch (DbException
$e) {
echo $e->showMessage();
//输出异常信息。
}
// 记录异常，定义不同类型异常处理
class DbException
extends Exception{
public function __construct (
$message = '参数异常',
$code = 0
) {
parent::__construct(
$message,
$code);
}
public function showMessage() {
$msg =
$this->
getMessage();
file_put_contents('./info.txt',
'Exception:' .
$msg . "\n file:" .
$this->getFile() . "\n line:" .
$this->getLine() . "\n Trac:" .
var_export(
$this->getTrace(),
true),
FILE_APPEND);
}
}
转载于:https://www.cnblogs.com/bandbandme/p/4478666.html
