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How to check that an object is empty in PHP?
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Edit: I didn't realize they wanted to specifically check if a SimpleXMLElement object is empty. I left the old answer below
Updated Answer (SimpleXMLElement):
For SimpleXMLElement:
If by empty you mean has no properties:
$obj = simplexml_load_file($url);
if ( !$obj-...
Coding Practices which enable the compiler/optimizer to make a faster program
...sizes by using these.
Declare small functions as inline or macros
Each call to a function (or method) incurs overhead, such as pushing variables onto the stack. Some functions may incur an overhead on return as well. An inefficient function or method has fewer statements in its content than th...
Increase modal size for Twitter Bootstrap
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in Bootstrap 3:
.modal-dialog{
width:whatever
}
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Any way to declare an array in-line?
...ent. Is there a way I can just declare this array in-line when I make the call? i.e. Instead of:
8 Answers
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Java time-based map/cache with expiring keys [closed]
... any of you know of a Java Map or similar standard data store that automatically purges entries after a given timeout? This means aging, where the old expired entries “age-out” automatically.
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Mapping over values in a python dictionary
...n one go, you are now using number-of-keys times my_dictionary.__getitem__ calls.
– Martijn Pieters♦
Oct 15 '14 at 15:21
1
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How can I format a decimal to always show 2 decimal places?
...antize(TWOPLACES, context=Context(traps=[Inexact]))
Traceback (most recent call last):
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Inexact: None
The next question reads
Q. Once I have valid two place inputs, how do I maintain that invariant throughout an application?
If you need the answer to that (along with lots of other useful in...
+ operator for array in PHP?
...uced by php.net doesn't have a formal spec, but both the + and array_merge call zend_hash_merge under the hood. This is also expected, since in PHP arrays are implemented as ordered hash maps.
– bishop
May 19 '15 at 18:34
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What are free monads?
...ra.
Examples: a monoid (X) is a set (Y) with extra structure (P) that basically says it has an operation (you can think of addition) and some identity (like zero).
So
class Monoid m where
mempty :: m
mappend :: m -> m -> m
Now, we all know lists
data [a] = [] | a : [a]
Well, giv...
Can I set an unlimited length for maxJsonLength in web.config?
...ds. (MSDN: ScriptingJsonSerializationSection.MaxJsonLength Property)
Basically, the "internal" JavaScriptSerializer respects the value of maxJsonLength when called from a web method; direct use of a JavaScriptSerializer (or use via an MVC action-method/Controller) does not respect the maxJsonLengt...