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Introduction of HTML Element Content Syntax
Where to find tutorials of introduction to HTML element content syntax and basics rules? Here is a list of tutorials to answer many frequently asked questions compiled by FYIcenter.com team in introduction to HTML element content syntax and basics rules. Clear answers are provided with tutorial exer...
2017-07-30, 292👍, 0💬

Floating an Image to the Right Side in HTML
How To Float an Image to the Right Side? If you want to float an image to the right side of the paragraph instead of inline within a text line, you have to use the CSS property "float" to do this. The "float" property takes two values: "float: left" - Specifies that the image to be floated to the le...
2017-03-27, 292👍, 0💬

What Are HTML List Elements
What Are HTML List Elements? HTML offers 3 list elements: "ol" - Ordered List: A list of items with leading sequential numbers. "ul" - Unordered List: A list of items with leading bullets. "dl" - Definition List: A list of items with leading terms. Here are some generic rules about list elements: Li...
2017-06-16, 291👍, 0💬

JSON-stringify-Object.html - JSON.stringify() on Objects
How JSON.stringify() behaves on JavaScript objects? When processing an object, JSON.stringify() behave depending on the type of objects based on the following rules: Boolean, Number, and String objects are converted to the corresponding primitive JSON values during stringification. Date objects are ...
2017-09-08, 290👍, 0💬

Convert XML to JSON with PHP
How to convert an XML document to a JSON text string with PHP language? Currently, there is no built-in function or any standard extension that you can use to convert an XML document to a JSON text string. But you can use the following PHP example, xml_to_json_converter.php, to convert an XML docume...
2017-08-17, 289👍, 0💬

The 'checked' Attribute of some HTML Elements
What Is Wrong with My "checked" Attribute Values? Attribute "checked" is an optional attribute for HTML element "input". In XHTML specification, attribute "checked" has only one predefined value: "checked". However, in HTML specification, attribute "checked" requires no value. If you are converting ...
2017-07-30, 289👍, 0💬

HTML Author 'meta' Tag/Element
What Is the HTML Author "meta" Tag/Element? The author "meta" element is a special "meta" element that provides information about the author of the HTML document. The author "meta" element must include the "name" attribute as, name="author". Here is an example: &lt;meta name="author" content="FY...
2017-06-23, 289👍, 0💬

Using HTML 'textarea' Input Fields
What Is a "textarea" Tag/Element? A "textarea" element is an inline element that you can use to define a large input area in a form. Here are basic rules about a "textarea" element: "textarea" elements are inline elements. "textarea" elements can only be used as sub-elements of "form" elements. A "t...
2017-04-04, 289👍, 0💬

HTML 'map' Tag/Element
What Is a "map" Tag/Element? A "map" element is special inline element that you to define map entries to be used by image maps. Here are some basic rules on "map" elements: "map" elements are inline elements. "map" elements can not have text contents. "map" elements should have "area" elements as su...
2017-03-22, 289👍, 0💬

HTML Elements with EMPTY Contents
What Are the HTML Elements Defined with EMPTY Contents? The following HTML elements are defined to use the EMPTY content model: &lt;meta ... /&gt; - Element to provide meta data to the document. &lt;link ... /&gt; - Element to provide a link to a CSS file. &lt;br/&gt; - Eleme...
2017-07-30, 288👍, 0💬

Turning on the Session Support in PHP
How To Turn on the Session Support in PHP? The session support can be turned on automatically at the site level, or manually in each PHP page script: Turning on session support automatically at the site level: Set session.auto_start = 1 in php.ini. Turning on session support manually in each page sc...
2016-10-29, 288👍, 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.  ⇒Uploading Files to Web Servers in PHP ⇒⇒PHP Tutorials
2016-10-14, 288👍, 0💬

Create "Add to Bloglines" Button
How To Create an "Add to Bloglines" Button on Your Website? If you want to create an "Add to Bloglines" button your own Web site, you can follow this tutorial: 1. Create an RSS Atom 1.0 feed file for your site, and make it accessible with a URL. If the feed file is generated dynamically, take the UR...
2017-09-24, 286👍, 0💬

Can Two HTML Forms Be Nested
Can Two Forms Be Nested? Can two forms be nested? The answer is no and yes: No. You can not nest two forms directly. XHTML schema does not allow that. Yes. You can nest two forms indirectly. See the tutorial example below. No. Two nested form do not work as two forms. Browsers will treat them as one...
2017-04-01, 286👍, 0💬

JSON Schema Validation for JSON Number Values
What validation keywords I can use in JSON Schema to specifically validate JSON Number values? The current JSON Schema specification supports the following validation keywords to specifically validate JSON Number values. They are not applied if the JSON instance is not a JSON Number. "multipleOf" - ...
2017-09-01, 285👍, 0💬

Converting Character to ASCII Value in PHP
How To Convert a Character to an ASCII Value? If you want to convert characters to ASCII values, you can use the ord() function, which takes the first charcter of the specified string, and returns its ASCII value in decimal format. ord() complements chr(). Here is a PHP script on how to use ord(): &...
2016-10-13, 285👍, 0💬

Generic JSON Schema Validation Keywords
What are other generic JSON Schema validation keywords? Several other generic JSON Schema validation keywords are listed below. They are always applied to the JSON instance. "enum" - The JSON instance must match one of the elements in the given array. For example, JSON Schema: {"enum": ["YES", "NO"]...
2017-08-25, 284👍, 0💬

HTML Drop Down List 'select' Tag/Element
What Is a "select" Tag/Element? A "select" element is an inline element that you can use to define a dropdown input field in a form. Here are basic rules about a "select" element: "select" elements are inline elements. "select" elements can only be used as sub-elements of "form" elements. A "select"...
2017-04-01, 284👍, 0💬

Finding a Substring in PHP
How to Find a Substring from a Given String? To find a substring in a given string, you can use the strpos() function. If you call strpos($haystack, $needle), it will try to find the position of the first occurrence of the $needle string in the $haystack string. If found, it will return a non-negati...
2016-10-13, 284👍, 0💬

Examples of Invalid JSON Values
Where to see some Examples of Invalid JSON Values? Here are some Examples of Invalid JSON Values: 1. Invalid JSON Strings: 'John' - Wrong quotes "John says "Hello!"" - " inside the string must use escape sequence \" 2. Invalid JSON Numbers: $1.00 - Currency sign is now allowed in numbers 99.00 * 0.1...
2017-08-13, 283👍, 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, 281👍, 0💬

RSS 2.0 XML Schema at codeplex.com
Where Can I get a copy of the RSS XML Schema? RSS XML Schema is an XML Schema that defines how an RSS XML document should be generated. If you are interested to know how to use an RSS XML Schema to generate RSS XML documents in C# language, you can look at the source code of "RSS 2.0 Schema" project...
2017-11-05, 280👍, 0💬

HTML 'textarea' Element Attributes
What Are the Attributes of a "textarea" Element? There are several commonly used attributes for a "textarea" element: rows="n" - Required attribute. Used to specify the number of rows of the text input area. cols="n" - Required attribute. Used to specify the number of columns of the text input area....
2017-04-04, 280👍, 0💬

JSON Type Unique Identifications
How to assign a unique identification to a JSON type in JSON Schema? Using "definitions" and "$ref" properties allows to define JSON types and reference them internally in the same JSON schema or externally in another JSON schema. You can also assign a unique identification to a JSON type with the "...
2017-08-20, 279👍, 0💬

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