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【Mysql】报mysqli_real_connect(): (HY000/2002)错误 - 数据库(内核) - 清...

...找) 2、指定php的mysql.sock文件路径 vim /php的安装路径/etc/php.ini mysql.default_socket=/mysql的安装路径/mysql.sock 3、使用tcp socket的方式进行连接 mysql('127.0.0.1','username','passwod');Mysql
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内存管理内幕:动态分配的选择、折衷和实现 - C/C++ - 清泛网 - 专注C/C++及内核技术

...II 上进行汇编语言编程的时代,那时内存管理还不是个大问题。您实际上在运行整个系统。系统有 多少内存,您就有多少内存。您甚至不必费心思去弄明白它有多少内存,因为每一台机器的内存数量都相同。 所以,如果内存需...
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HTTP redirect: 301 (permanent) vs. 302 (temporary)

...rk. Redirecting HTTP to HTTPS, Redirecting abandoned website to a new one, etc, are some of the usual usages of 301. – HosseyNJF Apr 8 at 5:41 add a comment ...
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手握利器,直面“蓝脸”! ——使用WinDbg抗击系统崩溃 - 操作系统(内核) - ...

...indows有时候也会跟我们闹闹情绪,小则是“应用程序遇到问题需要关闭”,搞不好还可能给您脸色看看。但是,这脸色可不是红的白的,而是一张“蓝脸”,您见过吗?首先,我们介绍以下三个重要的问题: 一、到底什么是...
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TCP 的那些事儿(下) - 更多技术 - 清泛网 - 专注C/C++及内核技术

... 算法 但是上面的这个算法在重传的时候会出有一个终极问题——你是用第一次发数据的时间和ack回来的时间做RTT样本值,还是用重传的时间和ACK回来的时间做RTT样本值? 这个问题无论你选那头都是按下葫芦起了瓢。 如下图所...
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Assign same value to multiple variables at once?

...y means $a = ( $b = ( $c = $d ) ) PHP passes primitive types int, string, etc. by value and objects by reference by default. That means $c = 1234; $a = $b = $c; $c = 5678; //$a and $b = 1234; $c = 5678; $c = new Object(); $c->property = 1234; $a = $b = $c; $c->property = 5678; // $a,b,c-&g...
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Reference: Comparing PHP's print and echo

...ctual opcodes it makes sense: line # * op fetch ext return operands --------------------------------------------------------------------------------- 3 0 > PRINT ~0 7 1 PRINT ...
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How do you reindex an array in PHP?

...aring data for whatever view renderer it may utilize (php, json, xml, rss, etc.) – Tres Apr 13 '11 at 23:46 add a comment  |  ...
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How do I deep copy a DateTime object?

... object. Deep copy would mean creating a new object for each copied object etc - is it more clear now? – jave.web Sep 15 at 11:28 ...
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If isset $_POST

...d the ! operator in cases like this (easier to read, less chance of error, etc.) and reverse the logic... if (empty()) {/* No */} else {/* Yes */} – MrWhite Aug 1 '14 at 10:58 ...