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CRON job to run on the last day of the month
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Possibly the easiest way is to simply do three separate jobs:
55 23 30 4,6,9,11 * myjob.sh
55 23 31 1,3,5,7,8,10,12 * myjob.sh
55 23 28 2 * myjob.sh
That will run on the 28th of February though, even on leap years so, if that's a problem, you'll need to find another ...
How do I show multiple recaptchas on a single page?
I have 2 forms on a single page. One of the forms has a recaptcha displaying all the time. The other should display a recaptcha only after a certain event such as maxing out login attempts. So there are times when I would need 2 recaptchas to appear on the same page. Is this possible? I know I ...
How to pass variable number of arguments to a PHP function
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132
If you have your arguments in an array, you might be interested by the call_user_func_array func...
How to select Python version in PyCharm?
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152
File -> Settings
Preferences->Project Interpreter->Python Interpreters
If it's not li...
What is the difference between 'typedef' and 'using' in C++11?
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All standard references below refers to N4659: March 2017 post-Kona working draft/C++17 DIS.
Typedef declarations can, whereas alias declarations cannot, be used as initialization statements
But, with the first two non-template examples, are
there any other subtle differences...
How to Flatten a Multidimensional Array?
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29 Answers
29
Active
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What's the best solution for OpenID with Django? [closed]
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edited Jul 30 '12 at 10:42
answered Feb 2 '10 at 14:02
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How to generate unique ID with node.js
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function generate(count, k) {
var _sym = 'abcdefghijklmnopqrstuvwxyz1234567890',
var str = '';
for(var i = 0; i < count; i++) {
str += _sym[parseInt(Math.random() * (_sym.length))];
}
base.getID(str, function(err, res) {
if(!res.length) {
k(str) ...
C/C++中的段错误（Segmentation fault） - C/C++ - 清泛网 - 专注C/C++及内核技术
...参指针为非空有着密切关系的。目录1。什么是段错误？2。为什 Segment fault 之所以能够流行于世，与Glibc库中基本上所有的函数都默认形参指针为非空有着密切关系的。
目录
1。什么是段错误？
2。为什么段错误这么“麻烦...