PHP 异常 

<!DOCTYPE html>
<html>
<title>Exception</title> 
        <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<body>
     <a href="../index.php">返回首页</a>
     <hr></hr>
<?php
    //create function with an exception
function checkNum($number){
      if($number>1){
            throw new Exception("值必须<1");
      }
      return true;
 }
//trigger exception
#checkNum(2);
//在 "try" 代码块中触发异常
try{
    checkNum(2);
    //If the exception is thrown, this text will not be shown
    echo '值<=１';
 }//捕获异常
catch(Exception $e){
    echo 'Message: ' .$e->getMessage();
 }
?>
</body>
</html>

 

posted on 2011-12-07 21:30  贾吾  阅读(162)  评论(0)    收藏  举报

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