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Default File Name of a URL
What Happens If File Name is Missing in a URL? If the file name part is missing in a URL, the one of the following two rules will be used. 1. If a URL has no file name, but a path name is given, the browser will let the hosting computer to supply the default file name. On most hosting computers, the...
2017-07-07, ∼2739🔥, 0💬

Validate Azure AD v2 id_token
How to validate the id_token value received from Azure AD v2.0 authentication response? As you can see from the previous tutorials, you can easily decode the "id_token" value received from Azure AD authentication response using a simple PHP script. After decoding, you can get all information about t...
2019-03-27, ∼2738🔥, 0💬

What Is json.JSONEncoder Class
What Is json.JSONEncoder Class? json.JSONEncoder class is the underlying class that supports json.dumps() functions. The following Python example shows you how to use json.JSONEncoder class to perform the same JSON encoding job as json.dumps function: &gt;&gt;&gt; import json &gt;&am...
2018-10-08, ∼2738🔥, 0💬

What Is EPUB 3.1 Specification
What Is EPUB 3.1 Specification? EPUB 3.1 Specification is the 3.1 version of EPUB specification. EPUB 3.1 Specification was developed pursuant to a charter approved by the IDPF Membership in July, 2015, and approved by the IDPF membership as a final Recommended Specification effective January 5, 201...
2018-06-27, ∼2732🔥, 0💬

Filtering Out Empty Files in PHP
Why Do You Need to Filter Out Empty Files in PHP? When you are processing uploaded files, you need to check for empty files, because they could be resulted from a bad upload process but the PHP engine could still give no error. For example, if a user typed a bad file name in the upload field and sub...
2016-10-14, ∼2730🔥, 0💬

What Is Wrapper Function
What is a wrapper function in Python? A wrapper function in Python is a function that takes an old function as input parameter and returns a new function. The new function should have the same parameter list and return type. If you call the new function, it will perform the same task as the old func...
2018-02-08, ∼2727🔥, 0💬

WPF App with VC# Code in Visual Studio 2017
How to build a WPF application with VC# code to control its behavior in Visual Studio 2017? After you have created your WPF application with XAML to define its UI elements, you can follow this tutorial to add VB code to control its behavior in Visual Studio 2017: 1. Create a "WPF App (.NET Framework...
2017-08-08, ∼2724🔥, 0💬

Setting session.gc_maxlifetime Properly in PHP
How To Set session.gc_maxlifetime Properly in PHP? As you know that session.gc_maxlifetime is the session value timeout period. You should set this value based on the usage pattern of your visitors. Here are some suggestions: # Set it to 20 minutes for a normal Web site: session.gc_maxlifetime = 120...
2016-10-24, ∼2724🔥, 0💬

Setting a Persistent Cookie in PHP
How To Set a Persistent Cookie in PHP? If you want to set a persistent cookie, you can use the setcookie() function with an extra parameter to specify its expiration time. To follow sample script sets 2 persistent cookies to be expired within 7 days: setcookie("LoginName","FYICent er");setcookie("Pr...
2016-11-04, ∼2718🔥, 0💬

Downloading and Installing PHP
Where to find tutorials in downloading and installing PHP binary version for Windows system. Here is a list of tutorials to answer many frequently asked questions compiled by FYIcenter.com team in downloading and installing PHP binary version for Windows system. Installing PHP for Windows Verifying ...
2016-10-13, ∼2713🔥, 0💬

Viewing the Content of a Cookie File in PHP
How to View the Content of a Cookie File in PHP? Cookie files are normal text files. You can view them with any text editor. Follow the steps below to see what is in a cookie file created by your own PHP script. Copy the following sample script, setting_persistent_cookies.php ,to your Web server: &a...
2016-10-30, ∼2707🔥, 0💬

Closing an HTML Element
How To Close an HTML Element? In XHTML syntax, every HTML element must be closed. There are two ways to close an HTML element: Using a closing tag, which is the element name prefixed with "/" and enclosed in a pair of angle brackets: "&lt;" and "&gt;". Closing the opening tag immediately by ...
2024-03-23, ∼2702🔥, 0💬

Decode Azure AD v1 id_token
How to decode the id_token value received from Azure AD v1.0 authentication response? According to the "RFC 7519 - JWT (JSON Web Token)" standard, the "id_token" value received from Azure AD authentication response should be decoded as below: Splitting the encoded string into 3 components: Header, B...
2021-05-16, ∼2697🔥, 0💬

Smallest Valid XHTML5 Document
What is a Smallest Valid XHTML5 Document? If you are interested to see the smallest, but valid, XHTML5 document, look at this one: &lt;?xml version="1.0" ?&gt; &lt;!DOCTYPE html&gt; &lt;html xmlns="http://www.w3.org/1999/ xhtml"&gt;&lt;head&gt;&lt;ti tle&gt;Hel...
2024-03-17, ∼2687🔥, 0💬

EPUB 2.0 Metadata - dc:subject Element
What is EPUB 2.0 Metadata "dc:subject" Element? EPUB 2.0 Metadata "dc:subject" is an optional metadata element to specify the subject category of the EPUB 2.0 book. When using "dc:subject" metadata element, you should follow an industry standard like: BISAC (Book Industry Standards And Communication...
2019-01-26, ∼2686🔥, 0💬

HTML 'em' Tag/Element
What Is an HTML "em" Tag/Element? An "em" element is an inline element that you can use to specify text with a normal emphasis. Here are basic rules about "em" elements: "em" elements are inline elements. "em" elements can not be used at block level. Contents of "em" elements will be displayed in it...
2017-04-28, ∼2683🔥, 0💬

What Is XHTML 1.0?
What Is XHTML 1.0? XHTML 1.0 was published as a W3C Recommendation in January 2000. XHMTL 1.0 is basically the same language as HTML 4.0. But XHTML 1.0 is defined in XML 1.0 syntax. XHTML 1.0 offers the following features: XHTML documents are XML conforming. As such, they are readily viewed, edited,...
2024-03-23, ∼2680🔥, 0💬

Policy to Control Backend Service
Where to find tutorials on creating Policy to control backend service on Azure API Management Policy? Here is a list of tutorials to answer many frequently asked questions compiled by FYIcenter.com team on creating Policy to control backend service on Azure API Management Policy. 'set-backend-servic...
2017-12-04, ∼2675🔥, 0💬

Hello-3.0.epub - Package File: package.opf
How to create a package file like package.opf for an EPUB 3.0 book? At least one package file, like package.opf, is required for an EPUB 3.0 book in the book ZIP container. It defines required meta data and specifies 2 required content files. Here is the requirement on a package file: 1. A package f...
2018-11-29, ∼2673🔥, 0💬

What Is Python Module 'sys'
What Is Python module "sys"? "sys" is a Python internal module that provides access to some variables used or maintained by the interpreter and to functions that interact strongly with the interpreter. Here are some important properties and functions provided by the "sys" module: &gt;&gt;&am...
2018-11-11, ∼2673🔥, 0💬

urllib.request.Request Properties and Functions
What properties and functions are supported on urllib.request.Request objects? urllib.request.Request objects support the following properties and functions: &gt;&gt;&gt; q = urllib.request.Request(url) host # represents the host name of the url. type # represents the internet protocol t...
2018-09-13, ∼2672🔥, 0💬

3Pigs5-3.0.epub - Title Page and TOC
How to add a title page and a table of content page to my EPUB book? If you want to add a title page and a table of content page to your EPUB 3.1 book, you can follow this tutorial. 1. Create a title page in an XHTML file like Title-Page.xhtml: &lt;?xml version="1.0" encoding="utf-8"?&gt; &a...
2018-08-14, ∼2671🔥, 0💬

Validating XHTML5 Documents Online
How To Validate XHTML5 Documents Online? If you have just finished a new XHTML5 document, and you want to make sure that confirms with the XHTML5 specification, you can use the XHTML online validator at https://validator.nu/ . First, you need to change "Parser" field to "XML; load external entities"...
2024-03-17, ∼2668🔥, 0💬

Hello-3.0.epub - "mimtype" File
How to create the "mimetype" file of an EPUB 3.0 book? The "mimetype" file of an EPUB 3.0 book is a required file in the book ZIP container. It specifies the mimetype of an EPUB 3.0 book file. Here is the requirement on the "mimetype" file: 1. The "mimetype" file must be named as "mimetype". 2. The ...
2018-11-29, ∼2666🔥, 0💬

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