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Are PHP Variables passed by value or by reference?
... reference using an '&'.
Assigned by value/reference example:
$var1 = "test";
$var2 = $var1;
$var2 = "new test";
$var3 = &$var2;
$var3 = "final test";
print ("var1: $var1, var2: $var2, var3: $var3);
output:
var1: test, var2: final test, var3: final test
Passed by value/reference example:...
How to change the background color of the options menu?
...round">@color/overflow_background</item>
...
</style>
Tested from API 4.2 to 5.0.
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Are there any disadvantages to always using nvarchar(MAX)?
...
I checked some articles and find useful test script from this: http://www.sqlservercentral.com/Forums/Topic1480639-1292-1.aspx
Then changed it to compare between NVARCHAR(10) vs NVARCHAR(4000) vs NVARCHAR(MAX) and I don't find speed difference when using specified ...
How to use SSH to run a local shell script on a remote machine?
...host
wall <<'ENDWALL'
Error: Out of cheese
ENDWALL
ftp ftp.secureftp-test.com <<'ENDFTP'
test
test
ls
ENDFTP
END2
ENDSSH
You can actually have a conversation with some services like telnet, ftp, etc. But remember that heredoc just sends the stdin as text, it doesn't wait for response b...
Why doesn't Internet Explorer 11 honour conditional comments even when emulating Internet Explorer 8
...eleased last week.
That was posted on April 22, 2014.
In running a few tests myself it does appear that this was fixed and all is running smoothly again for testing the most amazing browser ever produced...Internet Explorer!
...
How to iterate for loop in reverse order in swift?
...void creating a large array, use lazy along with reverse(). The following test runs efficiently in a Playground showing it is not creating an array with one trillion Ints!
Test:
var count = 0
for i in lazy(1...1_000_000_000_000).reverse() {
if ++count > 5 {
break
}
println(...
How efficient is locking an unlocked mutex? What is the cost of a mutex?
...igate this can be found here:
https://github.com/CarloWood/ai-statefultask-testsuite/blob/b69b112e2e91d35b56a39f41809d3e3de2f9e4b8/src/mutex_test.cxx
Note that it has a few hardcoded values specific for my box (xrange, yrange and rdtsc overhead), so you probably have to experiment with it before it...
Convert PDF to clean SVG? [closed]
... into a package PDF2SVG which does not use Batik any more:
which has been tested on a range of PDFs. It produces SVG output consisting of
characters as one <svg:text> per character
paths as <svg:path>
images as <svg:image>
Later packages will (hopefully) convert the characters...
Does R have an assert statement as in python?
...
stopifnot()
You may also be interested in packages like Runit and testthat for unit testing.
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How to color System.out.println output? [duplicate]
...or fg in {30..37} 39; do for bg in {40..47} 49; do printf "\e[${fg};${bg}m~TEST~"; done; printf "\n"; done;
Result:
Quick Reference (Color)
+~~~~~~+~~~~~~+~~~~~~~~~~~+
| fg | bg | color |
+~~~~~~+~~~~~~+~~~~~~~~~~~+
| 30 | 40 | black |
| 31 | 41 | red |
| 32 | 42 ...