求@是啥意思

WBOY
Release: 2016-06-23 14:13:41
Original
1301 people have browsed it

$dims = @getimagesize($image)

中间的那个@是啥意思啊


回复讨论(解决方案)

应该是屏蔽错误信息的。虽然屏蔽了,但是错误还在

抑制错误,好让你自己来处理错误。

要不然浏览器直接输出不友好的错误提示来了。

http://php.net/manual/zh/language.operators.errorcontrol.php

PHP 支持一个错误控制运算符:@。当将其放置在一个 PHP 表达式之前,该表达式可能产生的任何错误信息都被忽略掉。具体说明请看上面链接

http://www.baidu.com/s?ie=utf-8&bs=php+%40&f=8&rsv_bp=1&rsv_spt=3&wd=php+%40&inputT=0

百度一搜一大堆

如果加@ 就算这个方法报notice 或者waring错误 也不会在页面显示.

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