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Multiple Paragraphs in an HTML List Item
Can Multiple Paragraphs Be Included in a List Item? Yes. You can include multiple paragraphs in a single list item, because "li" is a flow type element, which can have block elements and inline elements. The tutorial example below shows you how a list item can have two paragraphs: &lt;?xml versi...
2017-05-29, 515👍, 0💬

Sorting an Array by Values in PHP
How To Sort an Array by Values in PHP? Sorting an array by values is doable by using the sort() function. It will re-order all pairs of keys and values based on the alphanumeric order of the values. Then it will replace all keys with integer keys sequentially starting with 0. So using sort() on arra...
2017-01-21, 515👍, 0💬

Verifying If a Key Exists in an Array in PHP
How Do You Know If a Key Is Defined in an Array in PHP? There are two functions can be used to test if a key is defined in an array or not: array_key_exists($key, $array) - Returns true if the $key is defined in $array. isset($array[$key]) - Returns true if the $key is defined in $array. Here is a P...
2017-01-29, 513👍, 0💬

Relative Path Name of a URL
What Is a Relative Path Name? A relative path name is a path name that starts without the leading slash "/". If a relative path name is used in a URL, the relative path name will be replaced with the current document path name appended with the specified relative path name. If "." or ".." is used in...
2017-07-07, 512👍, 0💬

Using HTML 'password' Input Fields
How To Use "password" Input Fields? A "password" input field is defined as &lt;input type="password" .../&gt;. A "password" input field can be used to create an input field to allow viewers to enter text strings or numbers without showing the entered in clear text. A "password" input field i...
2017-04-15, 512👍, 0💬

Hyper Link Indexes within the HTML Document
How To Build Hyper Link Indexes within the Same Document? If you want build some hyper link indexes within the same document, you need use "a" elements to define some bookmarks, then use "a" elements to define hyper links that pointing to those bookmarks. The tutorial example below shows you how to ...
2017-07-03, 511👍, 0💬

Truncating an Array in PHP
How To Truncate an Array in PHP? If you want to remove a chunk of values from an array, you can use the array_splice($array, $offset, $length) function. $offset defines the starting position of the chunk to be removed. If $offset is positive, it is counted from the beginning of the array. If negativ...
2017-01-05, 511👍, 0💬

URL Starts with Path or File name
What Happens If a URL Starts with Path or File name? If a URL starts with a path name, the browser will borrow the protocol name, the host name, and the port number from the URL of the current document to make up the missing parts. For example, if the following URL is used in this document you are v...
2017-07-07, 509👍, 0💬

Retrieving All Keys from an Array in PHP
How To Get All the Keys Out of an Array in PHP? Function array_keys() returns a new array that contains all the keys of a given array. Here is a PHP script on how to use array_keys(): &lt;?php $mixed = array(); $mixed["Zero"] = "PHP"; $mixed[1] = "Perl"; $mixed["Two"] = "Java"; $mixed["3"] = "C+...
2017-01-21, 509👍, 0💬

HTML 'table' Tag/Element
What Is a "table" Tag/Element? A "table" element is a block level element that you can use to present information in table of rows and columns. Here are basic rules about "table" elements: "table" elements are block elements. "table" elements can not have empty contents. "table" elements can not hav...
2017-05-20, 507👍, 0💬

Opening Standard Output as a File Handle in PHP
How To Open Standard Output as a File Handle in PHP? If you want to open the standard output as a file handle yourself, you can use the fopen("php://stdout") function. It creates a special file handle linking to the standard output, and returns the file handle. Once the standard output is opened to ...
2016-11-24, 506👍, 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, 505👍, 0💬

Setting session.gc_divisor Properly in PHP
How To Set session.gc_divisor Properly in PHP? As you know that session.gc_divisor is the frequency of when the session garbage collection process will be executed. You should set this value based on the income request traffic. Here are some suggestions: # Set it to 10, if traffic is less than 10,00...
2016-10-24, 504👍, 0💬

Structure of a URL
What Is the Structure of a URL? The structure of a URL is defined by the URL specification, see http://www.ietf.org/rfc/rfc239 6.txt.Generally, a URL consists of 7 parts: Protocol Name - Identifies the communication protocol through which this resource is made available, like "http://" or "ftp://". ...
2017-07-07, 503👍, 0💬

XHTML 'meta' Elements Not Closed
What Happens If an XHTML "meta" Element Is Not Closed? Meta tags, link tags and base tags must be closed in XHTML documents. If you forget to close them like the HTML format, you will get validation errors. Try the following tutorial sample XHTML document on http://validator.w3.org/ to see what type...
2017-06-28, 503👍, 0💬

Defining an Argument as a Reference in PHP
Can You Define an Argument as a Reference Type? in PHP? You can define an argument as a reference type in the function definition. This will automatically convert the calling arguments into references. Here is a PHP script on how to define an argument as a reference type: &lt;?php function ref_s...
2016-12-24, 502👍, 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, 500👍, 0💬

Appending Data to the End of a File in PHP
How To Append New Data to the End of a File in PHP? If you have an existing file, and want to write more data to the end of the file, you can use the fopen($fileName, "a") function. It opens the specified file, moves the file pointer to the end of the file, and returns a file handle. The second argu...
2016-12-02, 500👍, 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, 498👍, 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, 498👍, 0💬

'frame' - Controlling HTML Table Borders
How To Turn On Some Parts of Table Outer Borders? If you don't want to turn all 4 edges of outer borders in a table, you need to use the "frame" attribute, which offer the following options: &lt;table border="1" frame="border"&gt; - Turns on all 4 edges. &lt;table border="1" frame="box"&...
2017-05-13, 494👍, 0💬

HTML Forms and Input Fields
Where to find tutorials of introduction to HTML Forms and Input Fields? Here is a list of tutorials to answer many frequently asked questions compiled by FYIcenter.com team in introduction to HTML Forms and Input Fields. Clear answers are provided with tutorial exercises on forms and input fields: f...
2017-04-22, 493👍, 0💬

What Is a URL
What Is a URL? A URL (Uniform Resource Locator) is a reference name representing a location of a Web document or other resource that is available on the Internet. Here are some examples of URLs: "http://www.w3.org/" "http://dev.fyicenter.com/faq/ xhtml/""http://www.google.com/search? hl=en&amp;q=...
2017-07-15, 492👍, 0💬

Default Protocol and Port Number of a URL
What Happens If Protocol or Port Number Is Missing in a URL? From a syntax point of view, all URL parts are optional. If some parts are not included in a URL, the browser and the hosting computer will provide default values. Here are some rules about the protocol name, host name, and port number: 1....
2017-07-07, 492👍, 0💬

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