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PHP Regex to check date is in YYYY-MM-DD format
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Try this.
$date="2012-09-12";
if (preg_match("/^[0-9]{4}-(0[1-9]|1[0-2])-(0[1-9]|[1-2][0-9]|3[0-1])$/",$date)) {
return true;
} else {
return false;
}
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What Process is using all of my disk IO
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You're looking for iotop (assuming you've got kernel >2.6.20 and Python 2.5). Failing that, you're looking into hooking into the filesystem. I recommend the former.
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How can I profile C++ code running on Linux?
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1440
If your goal is to use a profiler, use one of the suggested ones.
However, if you're in a hurry...
How to use a decimal range() step value?
Is there a way to step between 0 and 1 by 0.1?
33 Answers
33
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What killed my process and why?
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answered Apr 7 '09 at 17:23
dwcdwc
20.8k55 gold badges3939 silver badges5252 bronze badges
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MDI CDockablePane使用总结 - C/C++ - 清泛网 - 专注C/C++及内核技术
...rToolBarId, uiLastUserToolBarId);
EnablePaneMenu(TRUE, ID_VIEW_CUSTOMIZE, 0, ID_VIEW_TOOLBAR);
CDockingManager::SetDockingMode(DT_SMART);
EnableAutoHidePanes(CBRS_ALIGN_ANY);
EnableDocking(CBRS_ALIGN_ANY);
（1） 第一种情况
if (!m_Panes[0].Create(_T("Pane 0"), this, CRe...
Python and pip, list all versions of a package that's available?
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170
(update: As of March 2020, many people have reported that yolk, installed via pip install yolk3k...
What is the difference between 0.0.0.0, 127.0.0.1 and localhost?
...ekyll and Vagrant on my mac. I found that Jekyll server will bind to 0.0.0.0:4000 instead of 127.0.0.1:4000 . Also gem server will bind to this address by default. I can still visit it via http://localhost:port . But for Jekyll , it seems that the default setting (e.g. 0.0.0.0:4000) req...
Normalize data in pandas
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In [92]: df
Out[92]:
a b c d
A -0.488816 0.863769 4.325608 -4.721202
B -11.937097 2.993993 -12.916784 -1.086236
C -5.569493 4.672679 -2.168464 -9.315900
D 8.892368 0.932785 4.535396 0.598124
In [93]: df_norm = (df - df.mean()) / (df.max() - df...
How to test which port MySQL is running on and whether it can be connected to?
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209
To find a listener on a port, do this:
netstat -tln
You should see a line that looks like th...