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                ThinkChat2.0新版上線,更智能更精彩,支持會話、畫圖、視頻、閱讀、搜索等,送10W Token,即刻開啟你的AI之旅 廣告
                時區設置:date_default_timezone_set(‘PRC’); strtotime(): 將日期字符串轉換成時間戳(如:2019-3-7),strtotime(‘2019-3-7’) time(): 當前時間戳 microtime(): 獲得微秒 閏年定義:能被4整除,但不能被100整除 $start = microtime(true); php程序 $end = microtime(true); echo $end - $start; 可以計算程序的執行時間 error_reporting(E_ALL ^ (E_NOTICE | E_WARNING)); 可以屏蔽警告和提示的信息,“@”這個符號也可以屏蔽一些變量未定義的情況。
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