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Can I use a hash sign (#) for commenting in PHP?
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The answer to the question Is there any difference between using "#" and "//" for single-line comments in PHP? is no.
There is no difference. By looking at the parsing part of PHP source code, both "#" and "//" are handled by the same code and therefore have the ex...
Pelican 3.3 pelican-quickstart error “ValueError: unknown locale: UTF-8”
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This fix is only correct if you speak English and live in the US (which typically isn't the case for people that see this issue). The real fix is to set LANG to the correct string for your locale (you can list them all with locale -a), generally usi...
Who is listening on a given TCP port on Mac OS X?
...user -n tcp $PORT to find out which process (PID) is listening on the specified TCP port. How do I get the same information on Mac OS X?
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Inspect element that only appear when other element is mouse overed/entered
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Press F8 to freeze the page
Switch to the Elements panel and use the magnifying glass icon in the top left to select the tooltip
If the tooltip shows up because of CSS, here's what you can do in that case:
Step-by-step:
Open the DevTools
Select the triggering element in the dev tools (the li...
SQL Server Operating system error 5: “5(Access is denied.)”
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Sometimes SQL server will run under a different user group other than Administrators Group
– JDandChips
Jun 2 '14 at 9:52
57
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How to select a single field for all documents in a MongoDB collection?
...e returned document will return only the roll field (and exclude the _id).
If we don't mention _id:0 the fields returned will be roll and _id. The '_id' field is always displayed by default. So we need to explicitly mention _id:0 along with roll.
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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
...的文本即可：
tail -f /data/log/logstash/all.log | awk '{
if (match($0, /.*(PHP Deprecated|PHP Notice|PHP Fatal error|PHP Warning|ERROR|WARN).*/)) { print "\033[41;37;1m"$0"\033[0m" }
else if (match($0, /.*关键信息1.*/)) { print "\033[32;1m"$0"\033[0m" }
else if (match($0, /...
How to paste in a new line with vim?
... solution unless you combined it with some keyboard map as suggested in a different answer. For instance, you can map it to any key (even p):
:nmap p :pu<CR>
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Rails server says port already used, how to kill that process?
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Just to clarify for novices: in the second line of code, you are supposed to replace the PID with the actual number that is shown in your console upon entering the first line of code (eg, 12345).
– CodeBiker
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Entity framework linq query Include() multiple children entities
....CompleteCompanies().FirstOrDefault(c => c.Id == companyID);
//or if you want even more
Company company =
context.CompanyById(companyID);
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