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Logstash实践: 分布式系统的日志监控 - 更多技术 - 清泛网 - 专注C/C++及内核技术
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# stdout { }
# 输出到redis
redis {
host => "10.140.45.190" # redis主机地址
port => 6379 # redis端口号
db => 8 # redis数据库编号
data_type => "channel" # 使用发布/订阅模式
key => ...
is_null($x) vs $x === null in PHP [duplicate]
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//checking with ===
$a = array();
$time = microtime(true);
for($i=0;$i<10000;$i++) {
if($a[$i] === null) {
//do nothing
}
}
echo 'Testing with === ', microtime(true) - $time, "\n";
//checking with is_null()
$time = microtime(true);
for($i=0;$i<10000;$i++) {
if(is_null($a...
How can I find a specific element in a List?
...Olivier Jacot-DescombesOlivier Jacot-Descombes
81.7k1010 gold badges113113 silver badges158158 bronze badges
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How to get my IP address programmatically on iOS/macOS?
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10 Answers
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Active
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Debug Error \"pure virtual function call\" 原因解析 - 更多技术 - 清泛...
...函数中调用。
以下来自：http://www.kuqin.com/language/20100307/80980.html
前几天我们项目刚刚解决了一个pure virtual function call引起的stopship的bug，乘热打铁，学习总结一下。
一、理论上case
当一个纯虚函数被调用到时，vc++的debug模...
Read url to string in few lines of java code
...next beginning.
– Rune
May 5 '13 at 10:00
7
Neat, but fails if the webpage returns no content (""...
Loading basic HTML in Node.js
...ttp');
var fs = require('fs');
var path = require('path');
var ext = /[\w\d_-]+\.[\w\d]+$/;
http.createServer(function(req, res){
if (req.url === '/') {
res.writeHead(200, {'Content-Type': 'text/html'});
fs.createReadStream('index.html').pipe(res);
} else if (ext.test(req.ur...
JSTL in JSF2 Facelets… makes sense?
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answered Jul 27 '10 at 12:40
BalusCBalusC
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What's the difference between eval, exec, and compile?
...ass a reference to exec:
>>> call_later(exec, 'print(42)', delay=1000)
File "<stdin>", line 1
call_later(exec, 'print(42)', delay=1000)
^
SyntaxError: invalid syntax
Which a pattern that someone might actually have used, though unlikely;
Or use it in a lis...
Why is “import *” bad?
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answered Mar 5 '10 at 12:43
gruszczygruszczy
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