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PHP calculate age
...s well
$birthDate = "12/17/1983";
//explode the date to get month, day and year
$birthDate = explode("/", $birthDate);
//get age from date or birthdate
$age = (date("md", date("U", mktime(0, 0, 0, $birthDate[0], $birthDate[1], $birthDate[2]))) > date("md")
? ((date("Y") - $birthDate...
Currency formatting in Python
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See the locale module.
This does currency (and date) formatting.
>>> import locale
>>> locale.setlocale( locale.LC_ALL, '' )
'English_United States.1252'
>>> locale.currency( 188518982.18 )
'$188518982.18'
>>> locale.currency( 1885...
What is the advantage to using bloom filters?
I am reading up on bloom filters and they just seem silly. Anything you can accomplish with a bloom filter, you could accomplish in less space, more efficiently, using a single hash function rather than multiple, or that's what it seems. Why would you use a bloom filter and how is it useful?
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How to add line breaks to an HTML textarea?
...text.replace(/\r?\n/g, '<br />');
UPDATE
Since many of the comments and my own experience have show me that this <br>
solution is not working as expected here is an example of how to append a new line to a textarea using '\r\n'
function log(text) {
var txtArea ;
txtArea = docum...
Create an array or List of all dates between two dates [duplicate]
...n a time-series, you could enumerate all the dates in the full date-range, and pick the value for a date directly from the series if it exists, or the default otherwise. For example:
var paddedSeries = fullDates.ToDictionary(date => date, date => timeSeries.ContainsDate(date)
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Can you create nested WITH clauses for Common Table Expressions?
...wered Sep 11 '09 at 22:12
David AndresDavid Andres
28.8k77 gold badges4141 silver badges3535 bronze badges
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bpftrace教程【官方】 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...tid]: This uses the thread ID as a key. There may be many reads in-flight, and we want to store a start timestamp to each. How? We could construct a unique identifier for each read, and use that as the key. But because kernel threads can only be executing one syscall at a time, we can use the thread...
What does character set and collation mean exactly?
I can read the MySQL documentation and it's pretty clear. But, how does one decide which character set to use? On what data does collation have an effect?
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Pass complex parameters to [Theory]
...nit has a nice feature : you can create one test with a Theory attribute and put data in InlineData attributes, and xUnit will generate many tests, and test them all.
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Python SQL query string formatting
...bugging
my application I'd like to log to file all the sql query strings, and it is
important that the string is properly formated.
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