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How to insert a newline in front of a pattern?
...e quote before the $ and then open it again.
Edit: As suggested in the comments by @mklement0, this works as well:
sed $'s/regexp/\\\n/g'
What happens here is: the entire sed command is now a C-style string, which means the backslash that sed requires to be placed before the new line literal sho...
Check to see if a string is serialized?
...hat your serialized string is not equal to "b:0;" might be helpful too ; something like this should do the trick, I suppose :
$data = @unserialize($str);
if ($str === 'b:0;' || $data !== false) {
echo "ok";
} else {
echo "not ok";
}
testing that special case before trying to unserialize w...
How to define an empty object in PHP
...
$x = new stdClass();
A comment in the manual sums it up best:
stdClass is the default PHP object.
stdClass has no properties, methods or
parent. It does not support magic
methods, and implements no interfaces.
When you cast a scalar or ...
How do I get the first n characters of a string without checking the size or going out of bounds?
...trick, he/she has to think harder to understand the code. IMO, the code's meaning is more obvious in the if / else version. For a cleaner / more readable solution, see @paxdiablo's answer.
share
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Jade: Links inside a paragraph
...deal with this, unfortunately I can't find it anywhere in the official documentation.
You can add inline elements with the following syntax:
#[a.someClass A Link!]
So, an example without going into multiple lines in a p, would be something like:
p: #[span this is the start of the para] #[a(href...
How to split a comma-separated value to columns
...
This should not be the accepted answer... A multi-statement TVF (very bad!) and a WHILE loop (even worse) together will perform awfully. Besides, this is a code-only answer and does not even solve the issue There are much better approaches around! For SQL-Server 2016+ look for ST...
JavaScript: How do I print a message to the error console?
How can I print a message to the error console, preferably including a variable?
18 Answers
...
How do I use DateTime.TryParse with a Nullable?
I want to use the DateTime.TryParse method to get the datetime value of a string into a Nullable. But when I try this:
9 A...
What is the difference between an IntentService and a Service? [duplicate]
Can you please help me understand what the difference between an IntentService and a Service is?
8 Answers
...
Is there Unicode glyph Symbol to represent “Search” [closed]
...nt with a proper glyph).
Also note that they are outside of the BMP, so some Unicode-capable software might have problems rendering them, even if they have fonts that support them.
Generally Unicode Glyphs can be searched using a site such as fileformat.info. This searches "only" in the names and ...