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MySQLi is a PHP Extension which enables PHP to communicate with MySQL Databases. MySQLi comes built in with PHP. MySQLi was introduced with PHP 5.0. For More details about Installations Refer official PHP MySQLi Documentation

Methods are defined with the def keyword, followed by the method name and an optional list of parameter names in parentheses. The Ruby code between def and end represents the body of the method. def hello(name) "Hello, #{name}" end A method invocation specifies the method name, the...

Sharing a simple string was easy, but you can do much more. In this example, I'll also store a complete array of strings, along with a gradient brush to be used for the background. This should give you a pretty good idea of just how much you can do with resources: <Window x:Class="WPFApplic...

Ubuntu Below are detailed instructions to install Caffe, pycaffe as well as its dependencies, on Ubuntu 14.04 x64 or 14.10 x64. Execute the following script, e.g. "bash compile_caffe_ubuntu_14.sh" (~30 to 60 minutes on a new Ubuntu). # This script installs Caffe and pycaffe. # CPU onl...

Even experienced Java developers tend to think that Java has only three protection modifiers. The language actually has four! The package private (a.k.a. default) level of visibility is often forgotten. You should pay attention to what methods you make public. The public methods in an application a...

Every time a program opens a resource, such as a file or network connection, it is important to free the resource once you are done using it. Similar caution should be taken if any exception were to be thrown during operations on such resources. One could argue that the FileInputStream has a finaliz...

Dependency on Guava can be added in your Java project by using any build system. Maven: <dependency> <groupId>com.google.guava</groupId> <artifactId>guava</artifactId> <version>19.0</version> </dependency> Gradle: dependencies { comp...

For Each row As DataRow In FooDataTable.Rows Me.RowsToProcess.Add(row) Next Dim myOptions As ParallelOptions = New ParallelOptions() myOptions.MaxDegreeOfParallelism = environment.processorcount Parallel.ForEach(RowsToProcess, myOptions, Sub(currentRow, state) ...

There are two possible ways to pass a value type by reference: ref and out. The difference is that by passing it with ref the value must be initialized but not when passing it with out. Using out ensures that the variable has a value after the method call: public void ByRef(ref int value) { C...

For the sake of data encapsulation, sometimes you want to have an attribute which value comes from other attributes or, in general, which value shall be computed at the moment. The standard way to deal with this situation is to create a method, called getter or a setter. class Book: def __init...

PDO is a universal database connection command in PHP, it support 12 different database type e.g MySQL, MongoDB, NoSQL. A big bonus about PDO is that it calculate your code to support the database type, so you don't need to make any chance when moving over to another database system. Summary PDO...

When a function doesn't preserve units automatically due to lower-level operations, the LanguagePrimitives module can be used to set units on the primitives that support them: /// This cast preserves units, while changing the underlying type let inline castDoubleToSingle (x : float<'u>) : fl...

The [<Measure>] attribute can be used on type parameters to declare types that are generic with respect to units of measure: type CylinderSize<[<Measure>] 'u> = { Radius : float<'u> Height : float<'u> } Test usage: open Microsoft.FSharp.Data.UnitSystems...

All values in Rust have a lifetime. A value's lifetime spans the segment of code from the value is introduced to where it is moved, or the end of the containing scope { let x = String::from("hello"); // + // ... : let y = S...

def noParam = { "I have $it" } def noParamCurry = noParam.curry(2) assert noParamCurry() == 'I have 2'

def honestlyNoParam = { -> "I Don't have it" } // The following all throw IllegalArgumentException honestlyNoParam.curry('whatever') honestlyNoParam.rcurry('whatever') honestlyNoParam.ncurry(0, 'whatever')

Once you've installed the .NET CLI tools, you can create a new project with the following command: dotnet new --lang f# This creates a command line program.

Sets also have a copymethod. You can use this method to perform a shallow copy. >>> s1 = {()} >>> s2 = s1.copy() >>> s1 is s2 False >>> s2.add(3) >>> s1 {[]} >>> s2 {3,[]}

I create a file called database-servlet.xml somewhere on the classpath. Initially your config file will look like this: <?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/...

Active Patterns can be used to make calling some .NET API's feel more natural, particularly those that use an output parameter to return more than just the function return value. For example, you'd normally call the System.Int32.TryParse method as follows: let couldParse, parsedInt = System.Int32....