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淘宝大秒系统设计详解 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...系统,文章主要介绍大秒系统以及这种典型读数据的热点问题的解决思路和实践经验。一些数据 大家还记得2013年的小米秒杀吗?三款小米手机各11万台开卖,走的都是大秒系统,3分钟后成为双十一第一家也是最快破亿的旗舰店...
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Check if URL has certain string with PHP

... worked for me with php if(strpos($_SERVER['REQUEST_URI'], 'shop.php') !== false){ echo 'url contains shop'; } share | improve this answer ...
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Download File to server from URL

Well, this one seems quite simple, and it is. All you have to do to download a file to your server is: 10 Answers ...
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Which MySQL datatype to use for an IP address? [duplicate]

...Pv6 addresses you could use a BINARY instead: `ipv6` BINARY(16) And use PHP’s inet_pton and inet_ntop for conversion: 'INSERT INTO `table` (`ipv6`) VALUES ("'.mysqli_real_escape_string(inet_pton('2001:4860:a005::68')).'")' 'SELECT `ipv6` FROM `table`' $ipv6 = inet_pton($row['ipv6']); ...
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PHP & mySQL: Year 2038 Bug: What is it? How to solve it?

.... Instead of asking my question in bulk, I preferred to break it up into small parts so that it is easy for novice users to understand as well. So my question(s): ...
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How to check for null in Twig?

... In addition, unlike the PHP isset() function, is defined will return true if a variable is defined and it's value is null. – Pavel Petrov Sep 19 '17 at 7:59 ...
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What type of hash does WordPress use?

... I don't know if this will help at all, but WP will still take the straight MD5 the first time you used the Password, then it will "salt" it. SO, if you have access to the DB, using MyPHPAdmin you can change the PW to "MyPass", select MD5 in the "Function" dro...
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Link to “pin it” on pinterest without generating a button

... or hundreds of posts, each one with social buttons. I just can't generate all the buttons for each url: it is too slow (facebook, g+, twitter, pinterest... for hundreds of links). So, instead of the facebook share button to be generated on the fly, I use a simple img pointing to ...
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Mixing a PHP variable with a string literal

...ake a look to the Variable parsing - Complex (curly) syntax section of the PHP manual. share | improve this answer | follow | ...
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How to convert all tables from MyISAM into InnoDB?

I know I can issue an alter table individually to change the table storage from MyISAM to InnoDB. 26 Answers ...