告诉我为什么正则表达式不起作用
/^[0-9]{4}[-]{1}[0-9]{2}[-]{1}[0-9]{2} [0-9]{2}[:]{1}[0-9]{2}[:]{1}[0-9]{2}$
应该拉出日期:
2018-07-16 21:09:02 - 主机: - UNCAUGHT_EXCEPTION - [Bitrix\Main\DB\SqlQueryException]
查找日期左右是否没有更多字符
全文示例:
2018-07-16 21:09:02 - Host: - UNCAUGHT_EXCEPTION - [Bitrix\Main\DB\SqlQueryException]
Mysql query error: (1146) Table 'sitemanager.b_option' doesn't exist (400)
SELECT o.SITE_ID, o.MODULE_ID, o.NAME, o.VALUE FROM b_option o
/home/bitrix/www/bitrix/modules/main/lib/db/mysqliconnection.php:137
#0: Bitrix\Main\DB\MysqliConnection->queryInternal(string, array, NULL)
/home/bitrix/www/bitrix/modules/main/lib/db/connection.php:330
#1: Bitrix\Main\DB\Connection->query(string)
/home/bitrix/www/bitrix/modules/main/lib/config/option.php:226
#2: Bitrix\Main\Config\Option::load(string, NULL)
/home/bitrix/www/bitrix/modules/main/lib/config/option.php:53
#3: Bitrix\Main\Config\Option::get(string, string, string)
/home/bitrix/www/bitrix/modules/main/lib/httprequest.php:370
#4: Bitrix\Main\HttpRequest->prepareCookie(array)
/home/bitrix/www/bitrix/modules/main/lib/httprequest.php:68
#5: Bitrix\Main\HttpRequest->__construct(object, array, array, array, array)
/home/bitrix/www/bitrix/modules/main/lib/httpapplication.php:46
#6: Bitrix\Main\HttpApplication->initializeContext(array)
/home/bitrix/www/bitrix/modules/main/lib/application.php:122
#7: Bitrix\Main\Application->initializeExtendedKernel(array)
/home/bitrix/www/bitrix/modules/main/include.php:1
#8: require_once(string)
/home/bitrix/www/bitrix/modules/main/include/prolog_before.php:14
#9: require(string)
/home/bitrix/www/bitrix/modules/main/tools/cron_events.php:11
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检查行尾是多余的。在同一个地方,在日期之后,仍然有描述异常的文本。
好吧,您还需要不要搞砸多行模式标志,以便将行的开头映射到日志的每一行的开头,而不是整个日志。但是这个地方不在上面的代码中。