PHP中的@符号

使用$exists = @$userID;的优点是什么? 语句,与if(isset($userID)){$exists = $userID; }else{$exists = false;}的较长表示if(isset($userID)){$exists = $userID; }else{$exists = false;} if(isset($userID)){$exists = $userID; }else{$exists = false;}

"@"符号快得多,因为我觉得它的可读性较差?


显然,在谷歌搜索5秒后,它抑制了错误报告。

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