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How do you Encrypt and Decrypt a PHP String?
...strlen() and mb_substr(), using the '8bit' character set mode to prevent mbstring.func_overload issues.
IVs should be generating using a CSPRNG; If you're using mcrypt_create_iv(), DO NOT USE MCRYPT_RAND!
Also check out random_compat.
Unless you're using an AEAD construct, ALWAYS encrypt then MAC...
What are five things you hate about your favorite language? [closed]
...are only a few different error messages and a few different types (Number, String, Object, etc.)
If it wasn't for jQuery, I'd probably still hate it as much as I used to :)
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Understanding the map function
...an example of what you asked for in the comments on the question - "turn a string into an array", by 'array' you probably want either a tuple or a list (both of them behave a little like arrays from other languages) -
>>> a = "hello, world"
>>> list(a)
['h', 'e', 'l', 'l', 'o', ...
AsyncTask threads never die
...t will have from 5 to 128 threads. If there are more than 5 threads, those extra threads will stick around for at most 10 seconds before being removed. (note: these figures are for the presently-visible open source code and vary by Android release).
Leave the AsyncTask threads alone, please.
...
What are the basic rules and idioms for operator overloading?
...oo {
public:
// Overloaded call operator
int operator()(const std::string& y) {
// ...
}
};
Usage:
foo f;
int a = f("hello");
Throughout the C++ standard library, function objects are always copied. Your own function objects should therefore be cheap to copy. If a functi...
Comment Inheritance for C# (actually any language)
...class or namespace!
public class Foo
{
/// <inheritdoc cref="System.String.IndexOf" />
public void Bar() { ... } // this method will now have the documentation of System.String.IndexOf
}
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Convert an image to grayscale in HTML/CSS
...: grayscale(100%);
filter: gray; /* IE6+ */
Take care to replace "utf-8" string by your file encoding.
This method should be faster than the other because the browser will not need to do a second HTTP request.
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How to best display in Terminal a MySQL SELECT returning too many fields?
...above comment, when you type SELECT * FROM sometable\G you are sending the string to the mysql command line client, not Windows, which is why the G is case sensitive
– Hurricane Hamilton
Mar 24 '14 at 15:31
...
How can I rename a database column in a Ruby on Rails migration?
...cord::Migration
def up
add_column :table, :correct_name_column_one, :string
add_column :table, :correct_name_column_two, :string
puts 'Updating correctly named columns'
execute "UPDATE table_name SET correct_name_column_one = old_name_column_one, correct_name_column_two = old_name...
Storing Python dictionaries
..., the foundational unit in json is the "Object", which is defined as { <string> : <value>}. Look familiar? The json module in the standard library supports every Python native type and can easily be extended with a minimal knowledge of json to support user-defined classes. The JSON homep...