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RSS "channel/item" Element
What is the RSS "channel/item" element? The RSS "channel/item" element is an optional sub element of the "channel" element to specify a news item of this RSS feed. The RSS "channel/item" element contains the following sub elements. title - REQUIRED, if "description" is not specified. The title of th...
2017-11-11, 1532🔥, 0💬

WPF App with VB and XAML in Visual Studio 2017
How to build a WPF application with VB and XAML in Visual Studio 2017? If you want to build a WPF (Windows Presentation Foundation) application with VB and XAML in Visual Studio 2017, you can follow this tutorial 1. Start Visual Studio 2017 with .NET development environment. 2. Click "File &gt; ...
2023-09-16, 1530🔥, 0💬

Cookies Transported from Browsers to Servers in PHP
How Cookies Are Transported from Browsers to Servers in PHP? Cookies are transported from a Web browser to a Web server in the header area of the HTTP request message. Each cookie will be included in a separate "Cookie:" header line in the following format: GET / HTTP/1.1 Cookie: name1=value1 Cookie...
2016-11-02, 1530🔥, 0💬

Escape Sequences in Single-Quoted Strings in PHP
How Many Escape Sequences Are Recognized in Single-Quoted Strings? There are two special characters you need to escape in a single-quote string: the single quote (') and the back slash (\). Here is a PHP script example of single-quoted strings: &lt;?php echo 'Hello world!'; echo 'It\'s Friday!';...
2016-10-13, 1530🔥, 0💬

Global Variables in Main Script in PHP
What Is the Scope of a Variable Defined outside a Function? in PHP? A variable defined outside any functions in main script body is called global variable. However, a global variable is not really accessible globally any in the script. The scope of global variable is limited to all statements outsid...
2016-12-08, 1529🔥, 0💬

Writing an Array to a File without File Handle in PHP
How To Write an Array to a File without a File Handle in PHP? If you have an array, want to write it to a file, and you don't want to open the file with a file handle, you can use the file_put_contents(). It opens the specified file, writes all values from the specified string, closes the file, and ...
2016-11-27, 1529🔥, 0💬

"MathFuncsLib.cpp" - Build Static Library
How to build a C++ static library with Visual Studio command tools? The next step to create a static library is to create library source code and build the library .lib file as shown in this tutorial: 1. Create the C++ source file, MathFuncsLib.cpp, with a text editor: // MathFuncsLib.cpp // compile...
2023-10-15, 1528🔥, 0💬

Defining Functions in Python
Where to find tutorials in Defining Functions in Python? Here is a list of tutorials to answer many frequently asked questions compiled by FYIcenter.com team on Defining Functions in Python: What Is Function 'def' - Function Definition Statements 'return' Statement in Function Statement Block Functi...
2017-09-12, 1528🔥, 0💬

"docker container exec ... ls -l" - Files on Container
How to list files on a Running Container using the "docker container exec ... ls -l" command? If the running container is based on a Linux system, we can definitely run the "ls -l" command on the container using the "docker container exec ... ls -l" command as shown below. 1. Create a new container ...
2021-10-10, 1527🔥, 0💬

Reading a Text File to an Array in PHP
How To Read a Text File into an Array in PHP? If you have a text file with multiple lines, and you want to read those lines into an array, you can use the file() function. It opens the specified file, reads all the lines, puts each line as a value in an array, and returns the array to you. Here is a...
2016-12-04, 1527🔥, 0💬

Technical Specifications for File Upload in PHP
How To Get the Technical Specifications for File Upload in PHP? File upload technical specifications is provided in "Form-based File Upload in HTML - RFC 1867". You can get a copy from http://www.ietf.org/rfc/rfc186 7.txt.    ⇒ PHP Tutorials ⇐ Configuration Settings for File Upload in PHP ⇑ Upload...
2016-10-14, 1527🔥, 0💬

Specifying Input Values for Checkboxes in PHP
How To Specify Input Values for Checkboxes in PHP? Checkboxes can be used in a form for two situations: As a single switch - One &lt;INPUT TYPE=CHECKBOX ...&gt; tag, with no input value specified. When submitted with button pushed down, you will receive a value of "on". When submitted with b...
2016-11-13, 1526🔥, 0💬

HTML In-line Elements and Tags
Where to find tutorials of introduction to XHTML 1.0 In-line Elements and Tags? Here is a list of tutorials to answer many frequently asked questions compiled by FYIcenter.com team in introduction to HTML In-line Elements and Tags. Clear answers are provided with tutorial exercises on inline element...
2017-08-03, 1525🔥, 0💬

HTML 'code' Tag/Element
What Is an HTML "code" Tag/Element? An "code" element is an inline element that you can use to specify text to be treated as computer code. Here are basic rules about "code" elements: "code" elements are inline elements. "code" elements can not be used at block level. Contents of "code" elements wil...
2017-04-28, 1525🔥, 0💬

How Sessoion IDs Are Transferred in PHP
How Session IDs Are Transferred on Your Web Server in PHP? As you know there are two options the PHP engine can use to transfer session IDs to the client browsers. But how to do know which option is your PHP engine is using? The PHP sample script will help you to find out: &lt;?php session_start...
2016-10-25, 1525🔥, 0💬

Defining and Using Class for New Data Types
Where to find tutorials on Defining and Using Class for New Data Types in Python? Here is a list of tutorials to answer many frequently asked questions compiled by FYIcenter.com team on Defining and Using Class for New Data Types in Python: What Is Class 'class' - Class Definition Statements Classes...
2018-05-08, 1523🔥, 0💬

Variables Are Passed by Values in PHP
How Variables Are Passed Through Arguments? in PHP? Like more of other programming languages, variables are passed through arguments by values, not by references. That means when a variable is passed as an argument, a copy of the value will be passed into the function. Modifying that copy inside the...
2016-12-24, 1523🔥, 0💬

Converting Leading Characters to Upper Case in PHP
How To Convert Leading Characters to Upper Case? If you are processing an article, you may want to capitalize the first character of a sentence by using the ucfirst() function. You may also want to capitalize the first character of every words for the article title by using the ucwords() function. H...
2016-10-13, 1523🔥, 0💬

Where Are Session Values Stored in PHP
Where Are Session Values Stored in PHP? When a value is saved into the current session by one PHP page, the PHP engine must store this value somewhere on Web server, so that the PHP engine can retrieve it back when same visitor comes back to request another PHP page. Where are the session values sto...
2016-10-25, 1522🔥, 0💬

Setting ID Column as Auto-Incremented in PHP
How To Set the ID Column as Auto-Incremented in PHP? Many tables require an ID column to assign a unique ID number for each row in the table. For example, if you have a table to hold forum member profiles, you need an ID number to identify each member. To allow MySQL server to automatically assign a...
2016-10-17, 1522🔥, 0💬

're' Module - Regular Expression Operations
Where to find tutorials on Python "re" Module? Here is a list of tutorials to answer many frequently asked questions compiled by FYIcenter.com team on Python "re" Module. What Is Python Module 're' re.search() - Search for First Match re.findall() - Find All Matches re.match() - Match from String Be...
2018-11-11, 1521🔥, 0💬

Passing an Argument to a Function in PHP
How To Pass an Argument to a Function? in PHP? To pass an argument to a function, you need to: Add an argument definition in the function definition. Add a value as an argument when invoking the function. Here is a PHP script on how to use arguments in a function(): &lt;?php function f2c($f) { r...
2016-12-24, 1521🔥, 0💬

What Is a Session in PHP
What Is a Session in PHP? A session is a logical object created by the PHP engine to allow you to preserve data across subsequent HTTP requests. There is only one session object available to your PHP scripts at any time. Data saved to the session by a script can be retrieved by the same script or an...
2016-10-29, 1521🔥, 0💬

Looping through Returning Rows from a Query in PHP
How To Query Tables and Loop through the Returning Rows in PHP? The best way to query tables and loop through the returning rows is to run the SELECT statement with the catch the mysql_query() function, catch the returning object as a result set, and loop through the result with the mysql_fetch_asso...
2016-10-19, 1520🔥, 0💬

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