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PHP function overloading
...;';
echo $obj->mymethod();
echo '<br />$obj->mymethod(null,"test") <br />';
echo $obj->mymethod(null,'test');
echo '<br /> $obj->mymethod("test","test","test")<br />';
echo $obj->mymethod('test','test','test');
...
What's the best way to get the last element of an array without deleting it?
...(expected Dec 13 2018).
The options (<<option code>>s) I will test are:
option .1. $x = array_values(array_slice($array, -1))[0]; (as suggested by rolacja)
option .2. $x = array_slice($array, -1)[0]; (as suggested by Stoutie)
option .3. $x = array_pop((array_slice($array, -1))); (as s...
String vs. StringBuilder
... It still depends on how one uses it, for a reference to actually tests I like Coding Horror - The Sad Tragedy of Micro-Optimization Theater
– Erik Philips
Jul 27 '13 at 17:38
...
Javascript switch vs. if…else if…else
..., because each has a different JS processing engine, however, in running a test on the site below, the switch always out performed the if, elseif on a large number of iterations.
Test site
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...
How to UPSERT (MERGE, INSERT … ON DUPLICATE UPDATE) in PostgreSQL?
...simple:
-- THIS IS WRONG. DO NOT COPY IT. It's an EXAMPLE.
BEGIN;
UPDATE testtable
SET somedata = 'blah'
WHERE id = 2;
-- Remember, this is WRONG. Do NOT COPY IT.
INSERT INTO testtable (id, somedata)
SELECT 2, 'blah'
WHERE NOT EXISTS (SELECT 1 FROM testtable WHERE testtable.id = 2);
COMMIT;
th...
Global and local variables in R
...anual/R-devel/library/base/html/get.html
Here you have a small example:
test.env <- new.env()
assign('var', 100, envir=test.env)
# or simply
test.env$var <- 100
get('var') # var cannot be found since it is not defined in this environment
get('var', envir=test.env) # now it can be found
...
How to read json file into java with simple JSON library
...o Java Object.
ObjectMapper mapper = new ObjectMapper();
InputStream is = Test.class.getResourceAsStream("/test.json");
testObj = mapper.readValue(is, Test.class);
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...
How can one pull the (private) data of one's own Android app?
...
Here is what worked for me:
adb -d shell "run-as com.example.test cat /data/data/com.example.test/databases/data.db" > data.db
I'm printing the database directly into local file.
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...
How to get progress from XMLHttpRequest
... server script reads a zip file (it takes 5 seconds):
$filesize=filesize('test.zip');
header("Content-Length: " . $filesize); // set header length
// if the headers is not set then the evt.loaded will be 0
readfile('test.zip');
exit 0;
Now I can monitor the download process of the server script,...
Why does jQuery or a DOM method such as getElementById not find the element?
...
<script>
console.log("script #1: %o", document.getElementById("test")); // null
</script>
<div id="test">test div</div>
<script>
console.log("script #2: %o", document.getElementById("test")); // <div id="test" ...
</script>
So, what should y...