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"new line" Character in Single-Quoted Strings in PHP
Can You Specify the "new line" Character in Single-Quoted Strings? You can not specify the "new line" character in a single-quoted string. If you don't believe, try this script: &lt;?php echo '\n will not work in single quoted strings.'; ?&gt; This script will print: \n will not work in sing...
2016-10-13, ∼3815🔥, 0💬

Testing the strpos() Return Value in PHP
What Is the Best Way to Test the strpos() Return Value? Because strpos() could two types of values, Integer and Boolean, you need to be careful about testing the return value. The best way is to use the "Identical(===)" operator. Do not use the "Equal(==)" operator, because it does not differentiate...
2016-10-13, ∼3815🔥, 0💬

Azure AD v1 id_token Decoded Example
Where to find an Azure AD v1.0 id_token decoded example? Here is an example of an "id_token" value returned from Azure AD v1.0 after Base64URL decoded: Header = { "typ": "JWT", "alg": "RS256", "x5t": "i6lGk3FZzxRcUb2C3nEQ7syHJlY", "kid": "i6lGk3FZzxRcUb2C3nEQ7syHJlY" } Body = { "aud": "ef1da9d4-ff77...
2021-05-16, ∼3812🔥, 0💬

"MyLib.cs" - VC# Class and Library
How to create a VC# class and build it into a library? If you want to create a VC# class and build it into a library, you can follow this tutorial: 1. Create the class source code file, MyLib.cs, with a text editor: // MyLib.cs // Copyright (c) FYIcenter.com using System; namespace fyi { public clas...
2017-08-06, ∼3807🔥, 0💬

'th' - Adding HTML Table Headers
How To Add Column Headers to a Table? If you want to add column headers to a table, you need to use "th" elements instead of "td" elements in the first row of the table. "th" elements are displayed in bold and centered by default. Below is a tutorial example of adding column headers to a table: &...
2017-05-05, ∼3803🔥, 0💬

Comparing Two Strings with strcmp() in PHP
How To Compare Two Strings with strcmp()? PHP supports 3 string comparison operators, &lt;, ==, and &gt;, that generates Boolean values. But if you want to get an integer result by comparing two strings, you can the strcmp() function, which compares two strings based on ASCII values of their...
2016-10-13, ∼3796🔥, 0💬

Use < Sign in '@(...)' Expressions
How to enter &lt; sign in '@(...)' expressions? &lt; signs can be entered in '@(...)' expressions directly. For example, the following "set-variable" policy statement uses a "@(...)" expression that contains a &lt; sign as the Boolean operator: &lt;set-variable name="isTrue" value="@...
2017-11-12, ∼3779🔥, 0💬

'retry' Policy Statement
How to use the "retry" Policy statement to retry "forward-request" multiple times for an Azure API service operation? The "retry" Policy Statement allows you to mainly execute "forward-request" statement multiple times if it fails. The "forward-request" Statement has the following syntax: &lt;re...
2018-01-16, ∼3773🔥, 0💬

Creating Your Own Functions in PHP
Where to find tutorials on how to create Your Own Functions in PHP? A collection of tutorials to answer many frequently asked questions on Creating Your Own Functions in PHP. Topics included in this collection are: Defining a User Function in PHP Invoking a User Function in PHP Returning a Value fro...
2016-12-28, ∼3763🔥, 0💬

What Is epubcheck.jar
What Is epubcheck.jar? epubcheck.jar is a Java program that allows you to validate an EPUB file. It can detect many types of errors in EPUB. OCF container structure, OPF and OPS mark-up, and internal reference consistency are checked. EpubCheck can be run as a standalone command-line tool or used as...
2018-06-06, ∼3751🔥, 0💬

Use &amp; in '@(...)' Expressions
How to enter &amp;amp; entity in '@(...)' expressions? If you want to enter the &amp;amp; sequence in a '@(...)' expressions, you must enter it as &amp;amp;amp;. This is because all XML entities will be decoded immediately, when Azure process the policy XML document. For example, the fol...
2017-11-12, ∼3750🔥, 0💬

Use '@(...)' Expressions in XML Attributes
When using "@(...)" expressions in XML attributes as part of an policy statement, do I need to worry about string quotations? If you are using a "@(...)" expression in XML attributes as part of an policy statement, and string literals are used in the "@(...)" expression, the syntax of the final poli...
2017-11-12, ∼3736🔥, 0💬

API Management Service Resource Details
Where to see resource detailed information of my API Management Service on Azure Portal? Once you have located you API Management Service on the Azure resource list as described in the previous tutorial, you can click on the resource name to see more details by clicking the menu on the left: Resourc...
2018-04-21, ∼3721🔥, 0💬

'@{...}' Expression Blocks in Azure API Policy
How to use the "@{...}" expression block in Azure API Policy? The "@{...}" expression block in Azure API Policy can be used to include a C# statement block as the attribute value or text value in most policy statements. C# statement block in the "@{...}" expression block must end with a "return" sta...
2018-02-14, ∼3720🔥, 0💬

HTML Tags in RSS "channel/item/description"
How to enter HTML Tags in RSS "channel/item/description"? In most cases, the "channel/item/description" XML element should contain a text string describing the RSS feed item without HTML tags. But sometimes, you would like to include HTML tags in the "channel/item/description" XML element, to provid...
2017-11-05, ∼3719🔥, 0💬

Policy to Modify Request and Response Body
Where to find tutorials on creating Policy to Modify Request and Response Body 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 Modify Request and Request Body on Azure API Management Policy. 'f...
2018-01-19, ∼3705🔥, 0💬

json.loads() - Loading JSON into Object
How to load (or decode, deserialize) a JSON string into a Python object using json.loads()? The json.loads() function allows you to load (or decode, deserialize) JSON strings (str, bytes or bytearray types) into Pythong objects: json.loads(s, *, encoding=None, cls=None, object_hook=None, parse_float...
2018-10-08, ∼3684🔥, 0💬

EPUB 2.0 Sample - "The Geography of Bliss"
Where can I download the EPUB 2.0 sample book "The Geography of Bliss" by Eric Weiner? You can following this tutorial to download the EPUB 2.0 sample book "The Geography of Bliss" by Eric Weiner. 1. Go to adobe.com sample eBooks page . 2. Click "The Geography of Bliss: One Grump's Search for the Ha...
2018-10-26, ∼3682🔥, 0💬

EPUB 2.0 Sample - "Alice's Adventures in Wonderland"
Where can I download the EPUB 2.0 sample book "Alice's Adventures in Wonderland" by Lewis Carroll? You can following this tutorial to download the EPUB 2.0 sample book "Alice's Adventures in Wonderland" by Lewis Carroll. 1. Go to adobe.com sample eBooks page . 2. Click "Alice's Adventures in Wonderl...
2018-10-26, ∼3666🔥, 0💬

Converting Strings to Hex Numbers in PHP
How To Convert Strings to Hex Numbers? If you want convert a string into hex format, you can use the bin2hex() function. Here is a PHP script on how to use bin2hex(): &lt;?php $string = "Hello\tworld!\n"; print($string."\n"); print(bin2hex($string)."\n"); ?&gt; This script will print: Hello ...
2016-10-13, ∼3664🔥, 0💬

"cl" - Compile and Link C++ Program
How to use "cl" command tool to compile and link a C++ program? If you want to compile and link a standard C++ program with "cl" command tool, you can follow this tutorial: 1. Create a simple C++ program, Hello.cpp, with a text editor: #include &lt;iostream&gt; using namespace std; void main...
2017-08-21, ∼3654🔥, 0💬

Server-Side Image Maps in HTML
What Is a Server-Side Image Map? A server-side image map is an image inside a hyper link. The image must be defined with the "ismap" attribute in the "img" element. When a server-side image map is clicked in a browser window, the mouse coordinates will be delivered to the server by them to the end o...
2017-03-22, ∼3650🔥, 0💬

Cookie Files Stored on Your Computer in PHP
Where Are the Persistent Cookies Stored on Your Computer in PHP? The location and file names where persistent cookies are stored on your computer depend on which browser you are using. If you using Microsoft Internet Explorer, persistent cookies are stored in the \Documents and Settings\$user\Cookie...
2016-11-02, ∼3646🔥, 0💬

View Atom Feeds with IE (Internet Explorer)
How to View Atom Feeds with IE (Internet Explorer)? If you want to view Atom Feeds with IE (Internet Explorer), you can follow this tutorial: 1. Launch IE (Internet Explorer) 11. 2. Enter the following in the URL input box: http://dev.fyicenter.com/atom_ xml.php3. Press "Enter" key. You see the Atom...
2017-12-31, ∼3637🔥, 0💬

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