zoukankan      html  css  js  c++  java
  • PHP7中异常与错误处理与之前版本对比

    PHP7中异常与错误处理与之前版本对比

    先上代码

     1 ECHO PHP_VERSION.PHP_EOL;
     2 function add (int $left,int $right){
     3   return $left+$right;
     4  }
     5 try {
     6     echo add('left', 'right');
     7 } catch (Exception $e) {
     8     // Handle exception
     9 } catch (Error $e) { // Clearly a different type of object
    10     // Log error and end gracefully
    11     var_dump($e->getMessage());
    12 }
    13 echo PHP_EOL."helloword".PHP_EOL;

    PHP v5.6.27结果

    1 5.6.27
    2 
    3 Catchable fatal error: Argument 1 passed to add() must be an instance of int, string given, called in D:phpStudyPHPTutorialWWWindex.php on line 9 and defined in D:phpStudyPHPTutorialWWWindex.php on line 3

    PHP v7.0.12结果

    1 7.0.12
    2 string(127) "Argument 1 passed to add() must be of the type integer, string given, called in D:phpStudyPHPTutorialWWWindex.php on line 9" 
    3 helloword

    区别

    在于后者可以捕获fatal error,并且可以正常输出helloword.

    链接:https://www.php.cn/topic/php7/436271.html

  • 相关阅读:
    if 语句
    变量命名
    python变量
    运算符
    注释
    PyCharm
    python版本,执行
    Tornado 【简述】
    Git 【管理篇】
    MySQL的介绍
  • 原文地址:https://www.cnblogs.com/clubs/p/11919769.html
Copyright © 2011-2022 走看看