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Factory Pattern. When to use factory methods?
...l object you are trying to create relies on several other objects. E.g, in PHP: Suppose you have a House object, which in turn has a Kitchen and a LivingRoom object, and the LivingRoom object has a TV object inside as well.
The simplest method to achieve this is having each object create their chi...
Count the number of occurrences of a string in a VARCHAR field?
...), "value", "") ) and make sure that "value" is always lowercased by using PHP strtolower(). PS: This solution above helped me to build my own little search engine and to weight the results by the number of words within the text. Thanks!
– Kai Noack
Jul 3 '17 a...
How do I modify the URL without reloading the page?
...entries, respectively.
window.history.pushState('page2', 'Title', '/page2.php');
Read more about this from here
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How to call an external command?
...at you want in a CGI script. The problem is not specific to Python; in the PHP community the problems are the same.
The solution is to pass DETACHED_PROCESS Process Creation Flag to the underlying CreateProcess function in Windows API.
If you happen to have installed pywin32, you can import the fla...
How can two strings be concatenated?
...
or if you often want to join strings from a vector (like implode() from PHP):
implode <- function(..., sep='') {
paste(..., collapse=sep)
}
Allows you do do this:
p('a', 'b', 'c')
#[1] "abc"
vec <- c('a', 'b', 'c')
implode(vec)
#[1] "abc"
implode(vec, sep=', ')
#[1] "a, b, c"
Als...
Is there any way to put malicious code into a regular expression?
...ar Expression Matching Can Be Simple And Fast
(but is slow in Java, Perl, PHP, Python, Ruby, ...) talks about ways that most modern NFAs, which all seem to derive from Henry Spencer’s code, suffer severe performance degradation, but where a Thompson‐style NFA has no such problems.
If you only ...
How to use the PI constant in C++
...rd library which is magnitudes bigger than C++' (e.g. Python, Haskell, C#, PHP, Delphi, Erlang, Java, ......). From personal experience, that elitist not gonna use libs-opinion is a pest and probably the number one reason for bad software written in C++.
– Sebastian Mach
...
How to log cron jobs?
... @Danijel serverfault.com/a/117365/193377 0 0 * * * /some/path/to/a/file.php > $HOME/date +\%Y\%m\%d\%H\%M\%S-cron.log 2>&1
– AnneTheAgile
Oct 11 '17 at 22:11
...
Differences between action and actionListener
...that describes the relationship:
http://www.java-samples.com/showtutorial.php?tutorialid=605
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Detect Click into Iframe using JavaScript
....blur( function() {
if( overiFrame != -1 )
$.post('log.php', {id:overiFrame}); /* example, do your stats here */
});
});
Very elegant solution with a minor downside: if a user presses ALT-F4 when hovering the mouse over an iFrame it will log it as a click. This only happene...