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为什么你得学些 TCP 的知识? - 环境配置 - 清泛IT社区,为创新赋能!
...时候,我又记起来了。
所以我认为——这不可能是我的问题,可能吗?可能吗??然后我发了一封邮件给我团队说:“我想我快要疯了,但是这可能是 TCP 的问题”。
所以我提交了一次修订,将我的应该调整为 TCP_NODELAY,然后...
卸载SQL Server2000后不能再次安装的问题解决方法 - 数据库(内核) - 清泛网...
卸载SQL Server2000后不能再次安装的问题解决方法曾经由于磁盘空间的问题,卸载了SQL Server2000,可当再次要把它安装上的时候,却怎么也不行了。无论是安装哪一个版本,永远都是同样的错 曾经由于磁盘空间的问题,卸载了SQL S...
Check whether an array is empty [duplicate]
... You don't need to count the elements or use empty(). A one-liner like php -r 'echo array() ? "T":"F";' will show the truthiness for an empty or non-empty array.
– jerseyboy
May 16 '14 at 13:08
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String comparison using '==' vs. 'strcmp()'
It seems that PHP's === operator is case sensitive. So is there a reason to use strcmp() ?
13 Answers
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TokuMX vs. MongoDB 性能对比 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
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磁盘消耗对比:
选择MongoDB就必然会面对磁盘消耗的问题。我们拿到的数据大概是这样的:每天的数据量不到200万条,平均数据的大小不超过4k,但MongoDB存一个月的数据就需要接近40G,最近三个月的数据则需要接近100G。限...
How to save a PNG image server-side, from a base64 data string
...rings that this tool generates, into actual PNG files on the server, using PHP.
15 Answers
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upstream sent too big header while reading response header from upstream
...ove the message, is it streaming with logged lines preceding the message? PHP message: PHP Notice: Undefined index:
Example snippet from a loop my log file:
2015/11/23 10:30:02 [error] 32451#0: *580927 FastCGI sent in stderr: "PHP message: PHP Notice: Undefined index: Firstname in /srv/www/class...
PHP function to get the subdomain of a URL
Is there a function in PHP to get the name of the subdomain?
28 Answers
28
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The mysql extension is deprecated and will be removed in the future: use mysqli or PDO instead [dupl
When I attempt to connect to a MySQL server from PHP, I see the following error:
1 Answer
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MongoDB sort排序、index索引教程 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...据如下:
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{ "_id" : Obje...