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Get value of dynamically chosen class constant in PHP
...
<?php
class Dude {
const TEST = 'howdy';
}
function symbol_to_value($symbol, $class){
$refl = new ReflectionClass($class);
$enum = $refl->getConstants();
return isset($enum[$symbol])?$enum[$symbol]:false;
}
// print 'howdy'
echo symb...
How do I get a string format of the current date time, in python?
...
#python3
import datetime
print(
'1: test-{date:%Y-%m-%d_%H:%M:%S}.txt'.format( date=datetime.datetime.now() )
)
d = datetime.datetime.now()
print( "2a: {:%B %d, %Y}".format(d))
# see the f" to tell python this is a f string, no .format
print(f"2b: {d:%B %...
Can a for loop increment/decrement by more than one?
...
A for loop:
for(INIT; TEST; ADVANCE) {
BODY
}
Means the following:
INIT;
while (true) {
if (!TEST)
break;
BODY;
ADVANCE;
}
You can write almost any expression for INIT, TEST, ADVANCE, and BODY.
Do note that the ++ ope...
Android: How to bind spinner to custom object list?
...e an view to make my layout, it only contains an Icon and text. The logcat confirms me by saying Skipped 317 frames! The application may be doing too much work on its main thread. Any ideas?
– CularBytes
May 20 '15 at 19:02
...
CSS selector by inline style attribute
...e you an example of when this is useful. I'm writing a Selenium Web Driver test and canno't/would not like to alter the actual code in test. I need to identify a specific autocomplete (there are several hidden) by style display, as the code does not provide unique id's or parent structure - they are...
Which mime type should I use for mp3
...
I had a problem with mime types and where making tests for few file types. It looks like each browser sends it's variation of a mime type for a specific file. I was trying to upload mp3 and zip files with open source php class, that what I have found:
Firefox (mp3): audio...
What is the difference between ? and Object in Java generics?
... type of ?. Not everything matches Object, but everything matches ?.
int test1(List<?> l) {
return l.size();
}
int test2(List<Object> l) {
return l.size();
}
List<?> l1 = Lists.newArrayList();
List<Object> l2 = Lists.newArrayList();
test1(l1); // compiles because any...
PL/SQL, how to escape single quote in a string?
... quotation mark with two single >quotation marks in both sides.
SELECT 'test single quote''' from dual;
The output of the above statement would be:
test single quote'
Simply stating you require an additional single quote character to print a single quote >character. That is if you put two sing...
Razor-based view doesn't see referenced assemblies
...
Have confirmed by the way that you don't need to have the system.web\compilation\assemblies section once the dlls are directly in the bin folder. This can go back to just being <compilation debug="true" targetFramework="4.5.1" ...
How does RegexOptions.Compiled work?
....Matches[i++ % item.Matches.Length]);
});
}
}
It performs 4 tests on 3 different regular expressions. First it tests a single once off match (compiled vs non compiled). Second it tests repeat matches that reuse the same regular expression.
The results on my machine (compiled in relea...