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手把手教你用Strace诊断问题 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...CPU 排序。
在本例中大家很容易发现 CPU 主要是被若干个 PHP 进程占用了，同时 PHP 进程占用的比较多的内存，不过系统内存尚有结余，SWAP 也不严重，这并不是问题主因。
不过在 CPU 列表中能看到 CPU 主要消耗在内核态「sy」，...
-bash: phpize: command not found - 更多技术 - 清泛网 - 专注C/C++及内核技术
-bash: phpize: command not foundphpize是属于php-devel的内容，因此在centos中只要运行如下命令：yum install php-develphpize是属于php-devel的内容，因此在centos中只要运行如下命令：
yum install php-devel
phpize
优惠券批量生成及导入的思路 - 闲聊区 - 清泛IT论坛，有思想、有深度
...产生2个36进制随机数拼接起来，取前面的部分即可。一段PHP代码如下：<?php
function gen_coupon() {
do {
$m = mt_rand(0, PHP_INT_MAX);
$n = mt_rand(0, PHP_INT_MAX);
&nbs...
【解决】Linux：Call to undefined function curl_init() - 更多技术 - 清...
【解决】Linux：Call to undefined function curl_init() php_curl 安装curlsudo apt-get install php-curl 重启web服务器，搞定apachectl restart
#安装curl
sudo apt-get install php-curl
#重启web服务器，搞定
apachectl restart
linux php curl
How to auto-remove trailing whitespace in Eclipse?
...to Code organizing tab -> check Remove trailing whitespace -> select All lines.
Removing whitespace only from the lines I changed:
Preferences -> Java -> Editor -> Save Actions -> check "Perform the selected actions on save -> check Format source code -> select Format edi...
Nginx no-www to www and www to no-www
...n.php last;
# etc etc...
}
}
Note: I have not originally included https:// in my solution since we use loadbalancers and our https:// server is a high-traffic SSL payment server: we do not mix https:// and http://.
To check the nginx version, use nginx -v.
Strip www from ...
Send message to specific client with socket.io and node.js
..."I'm the master", function() {
// Save the socket id to Redis so that all processes can access it.
client.set("mastersocket", socket.id, function(err) {
if (err) throw err;
console.log("Master socket is now" + socket.id);
});
});
socket.on("message to master", function(...
Tools to selectively Copy HTML+CSS+JS From A Specific Element of DOM [closed]
Like most web developers, I occasionally like to look at the source of websites to see how their markup is built. Tools like Firebug and Chrome Developer Tools make it easy to inspect the code, but if I want to copy a specific section and play around with it locally, it would be a pain to copy all t...
Static/Dynamic vs Strong/Weak
I see these terms bandied around all over the place in programming and I have a vague notion of what they mean. A search shows me that such things have been asked all over stack overflow in fact. As far as I'm aware Static/Dynamic typing in languages is subtly different to Strong/Weak typing but wha...
What is the fastest way to compute sin and cos together?
.... If you need strong optimization, perhaps you should use it.
Here is a small example: http://home.broadpark.no/~alein/fsincos.html
Here is another example (for MSVC): http://www.codeguru.com/forum/showthread.php?t=328669
Here is yet another example (with gcc): http://www.allegro.cc/forums/thread...