大约有 16,000 项符合查询结果(耗时:0.0226秒) [XML]

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How to specify in crontab by what user to run script? [closed]

...e that this method won't work with crontab -e, but only works if you edit /etc/crontab directly. Otherwise, you may get an error like /bin/sh: www-data: command not found Just before the program name: */1 * * * * www-data php5 /var/www/web/includes/crontab/queue_process.php >> /var/www/web/i...
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How to change the session timeout in PHP?

...gc_probability=0 by default in the configuration, and is instead done via /etc/cron.d/php, which runs at XX:09 and XX:39 (that is, every half hour). This cron job looks for sessions older than the session.gc_maxlifetime specified in the configuration, and if any are found, they are deleted. As a con...
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在线服务的黑天鹅 - 资讯 - 清泛网 - 专注C/C++及内核技术

...利用周日休息一下,但是一醒来就收到消息说某服务有些问题。于是赶紧连线了一堆正在处理事件的工程师,等拿到初步的原因分析之后,已经4小时之后了。 “墨菲定律”,一位工程师说,“前几天觉得这个地方有些隐患,已...
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开源邮件传输代理软件 -- Postfix 介绍 - 开源 & Github - 清泛网 - 专注C/C++及内核技术

...。还有一种情况时,如果postfix在处理邮件过程中遇到了问题,则该值会开始降低。 当接收到的新邮件的数量超过postfix的投递能力时,postfix会暂时停止投递deferred队列中的邮件而去处理新接收到的邮件。这是因为处理新邮件的...
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How to check whether an array is empty using PHP?

...easiest way to check if it's empty? I'm assuming I can do so as soon as I fetch the $gameresult array into $gamerow ? In this case it would probably be more efficient to skip exploding the $playerlist if it's empty, but for the sake of argument, how would I check if an array is empty as well? ...
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using jquery $.ajax to call a PHP function

...e 'test' : test();break; case 'blah' : blah();break; // ...etc... } } I believe that's a simple incarnation of the Command pattern. share | improve this answer | ...
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Asynchronous shell exec in PHP

...verted to use echo "sudo command" | at now and commenting www-data out in /etc/at.deny – Julien Apr 16 '15 at 7:47 @Ju...
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动态追踪(Dynamic Tracing)技术漫谈 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术

...在非常短的时间内,回答一些很难的关于软件系统方面的问题,从而更快速地排查和解决问题。它兴起和繁荣的一个大背景是,我们正处在一个快速增长的互联网时代,作为工程师,面临着两大方面的挑战:一是规模,不管是用...
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simple explanation PHP OOP vs Procedural?

...ulation, functions for processing arrays, functions for file input/output, etc] OOP is a special way of "chunking" Functions together into a "Class" A Class is just another level of "chunking" code together so that you can treat it as a unified whole A Class can be thought of as a "chunking" of met...
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泡在Stack Overflow答题30天 - 创意 - 清泛网 - 专注C/C++及内核技术

...何使用Stack Overflow的话,我的答案就是:打开网页,搜索问题,查看Stack Overflow的搜索结果,参...想法的萌芽 如果非要总结下我多年来是如何使用Stack Overflow的话,我的答案就是:打开网页,搜索问题,查看Stack Overflow的搜索结...