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Virtualbox “port forward” from Guest to Host [closed]
...nied" without explanation in /var/log/auth.log despite LogLevel DEBUG3 in /etc/ssh/sshd_config
– V-R
Aug 26 '16 at 14:57
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How to change Android version and code version number?
...falvors tab on right side on default config change version code , name and etc...
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What is the dual table in Oracle?
... as sysdate. Also helps you to check if Oracle is up and check sql syntax, etc.
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JavaScript single line 'if' statement - best syntax, this alternative? [closed]
... a conditional statement - removes any confusion as to order of operations etc. for other developers. I typically err towards specifying it except when there's no way for someone decently qualified to get confused.
– djvs
Apr 18 '17 at 4:11
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How to make a SIMPLE C++ Makefile
...oject from a collection of source files, object files, libraries, headers, etc., etc.---some of which may have changed recently---and turning them into a correct up-to-date version of the program.
Actually, you can use Make for other things too, but I'm not going to talk about that.
A Trivial Make...
How would you make a comma-separated string from a list of strings?
...l)
Obviously it gets more complicated if you need to quote/escape commas etc in the values. In that case I would suggest looking at the csv module in the standard library:
https://docs.python.org/library/csv.html
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PHP Get Site URL Protocol - http vs https
...ERVER['HTTPS'] is set. Many frameworks set this variable as false or 'off' etc, therefore checking if it's simply set will not work.
– Daniel Dewhurst
Jan 3 '17 at 14:48
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How to design a product table for many kinds of product where each product has many parameters
...a blob of attributes that can't be easily queried within SQL; you have to fetch the whole blob back to the application and sort it out there.
Entity-Attribute-Value: One table for Products, and one table that pivots attributes to rows, instead of columns. EAV is not a valid design with respect to t...
How can I implode an array while skipping empty array items?
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To remove null, false, empty string but preserve 0, etc. use func. 'strlen'
$arr = [null, false, "", 0, "0", "1", "2", "false"];
print_r(array_filter($arr, 'strlen'));
will output:
//Array ( [3] => 0 [4] => 0 [5] => 1 [6] => 2 [7] => false )
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How to get whole and decimal part of a number?
...// 1
$fraction = $n - $whole; // .25
Then compare against 1/4, 1/2, 3/4, etc.
In cases of negative numbers, use this:
function NumberBreakdown($number, $returnUnsigned = false)
{
$negative = 1;
if ($number < 0)
{
$negative = -1;
$number *= -1;
}
if ($returnUnsigned){
...