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PHP 解决未定义变量报错

Jun 06, 2016 pm 07:49 PM
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在PHP中 有时候会出现 Notice : Undefined index: sid in D:\Apache Group\Apache2\htdocs\php_mobile\mobile\chao\sinnsei_publish.php on line 10 这个报错,原因是因为没有定义,因为PHP是弱类型语言,和JAVA等不一样,不一定要初始化,所以这种问题其实

在PHP中 有时候会出现

Notice: Undefined index: sid in D:\Apache Group\Apache2\htdocs\php_mobile\mobile\chao\sinnsei_publish.php on line 10

 

这个报错,原因是因为没有定义,因为PHP是弱类型语言,和JAVA等不一样,不一定要初始化,所以这种问题其实不是什么大问题

不过,出现在页面上确实不好看,

方法一:初始化变量进行赋值

方法二:加@来对错误进行抑制

$sid = @$_POST['sid'];

  

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