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Iterate over each line in a string in PHP
...preg_split the variable containing the text, and iterate over the returned array:
foreach(preg_split("/((\r?\n)|(\r\n?))/", $subject) as $line){
// do stuff with $line
}
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Using AES encryption in C#
... myRijndael.GenerateIV();
// Encrypt the string to an array of bytes.
byte[] encrypted = EncryptStringToBytes(original, myRijndael.Key, myRijndael.IV);
// Decrypt the bytes to a string.
string roundtrip = DecryptStri...
Why use prefixes on member variables in C++ classes
...tory, C++ strings are by common convention pointers to nul-terminated char arrays, and it's not really all that difficult to know that "customerName" is a string!
However, I do use prefixes to specify the usage of a variable (essentially "Apps Hungarian", although I prefer to avoid the term Hungari...
Equivalent of String.format in jQuery
...
Made a format function that takes either a collection or an array as arguments
Usage:
format("i can speak {language} since i was {age}",{language:'javascript',age:10});
format("i can speak {0} since i was {1}",'javascript',10});
Code:
var format = function (str, col) {
col ...
How much is the overhead of smart pointers compared to normal pointers in C++?
...? This depends on your implementation. Let's say you are iterating over an array of 3 phases, each phase has an array of 1024 elements. Creating a smart_ptr for this process might be overkill, since once the iteration is done you'll know you have to erase it. So you could gain extra memory from not ...
In Mongoose, how do I sort by date? (node.js)
...Post.find().sort('-posted').find(function (err, posts) {
// user posts array
});
You can send any standard parameters you need to find() (e.g. where clauses and return fields) but no callback. Without a callback it returns a Query object which you chain sort() on. You need to call find() again...
How do I expire a PHP session after 30 minutes?
...
@Metropolis: session_unset does the same as $_SESSION = array().
– Gumbo
Aug 9 '10 at 19:06
14
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Why would an Enum implement an Interface?
...both the Simple + Complex Operators:
List<Operator> operators = new ArrayList<Operator>();
operators.addAll(Arrays.asList(SimpleOperators.values()));
operators.addAll(Arrays.asList(ComplexOperators.values()));
So here you use an interface to simulate extensible enums (which wouldn't ...
How to get JS variable to retain value after page refresh? [duplicate]
...y, that abstracts the ability to save any data type (like object literals, arrays, etc.).
References:
Browser Storage - https://developer.mozilla.org/en-US/docs/Web/Guide/API/DOM/Storage
localStorage - https://developer.mozilla.org/en-US/docs/DOM/Storage#localStorage
JSON - https://developer.mo...
Is it possible to deserialize XML into List?
...l serialize and deserialize a List<>. Just make sure you use the [XmlArray] attribute if in doubt.
[Serializable]
public class A
{
[XmlArray]
public List<string> strings;
}
This works with both Serialize() and Deserialize().
...