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PHP function to get the subdomain of a URL
...: Starting from PHP 5.4 you can simply do:
explode('.', 'en.example.com')[0];
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How to add \newpage in Rmarkdown in a smart way?
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\newpage
```{r, echo=FALSE}
1+1
```
\pagebreak
```{r, echo=FALSE}
plot(1:10)
```
This solution assumes you are knitting PDF. For HTML, you can achieve a similar effect by adding a tag <P style="page-break-before: always">. Note that you likely won't see a page break in your browser (HTMLs d...
How to securely store access token and secret in Android?
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edited Jun 10 at 8:04
CoolMind
12.3k66 gold badges105105 silver badges130130 bronze badges
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How to get error information when HttpWebRequest.GetResponse() fails
... HttpWebRequest and then retrieving it's response. Occasionally, I get a 500 (or at least 5##) error, but no description. I have control over both endpoints and would like the receiving end to get a little bit more information. For example, I would like to pass the exception message from server t...
SQL join on multiple columns in same tables
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206
Join like this:
ON a.userid = b.sourceid AND a.listid = b.destinationid;
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Call Go functions from C
...a interface{}) int {
fc := float64(current)
ft := float64(total) * 0.01
// print how far along we are.
// eg: 500 / 1000 (50.00%)
// For good measure, prefix it with our userdata value, which
// we supplied as "Callbacks rock!".
fmt.Printf("%s: %d / %d (%3.2f%%)\n", user...
XML Validation with XSD in Visual Studio IDE
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answered Jul 1 '10 at 20:44
marc_smarc_s
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How to extract the first two characters of a string in shell scripting?
...er expansion:
pax> long="USCAGol.blah.blah.blah"
pax> short="${long:0:2}" ; echo "${short}"
US
This will set short to be the first two characters of long. If long is shorter than two characters, short will be identical to it.
This in-shell method is usually better if you're going to be doi...
PHP Timestamp into DateTime
...ateTime constructor as-is:
// Assuming $item->pubDate is "Mon, 12 Dec 2011 21:17:52 +0000"
$dt = new DateTime($item->pubDate);
That being said, if you do have a timestamp that you wish to use instead of a string, you can do so using DateTime::setTimestamp():
$timestamp = strtotime('Mon, 12...
JSONDecodeError: Expecting value: line 1 column 1 (char 0)
I am getting error Expecting value: line 1 column 1 (char 0) when trying to decode JSON.
16 Answers
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