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EPUB 3.0 Metadata - dcterms:modified Property
What is EPUB 3.0 Metadata "dcterms:modified" property? EPUB 3.0 Metadata "dcterms:modified" is a required metadata property to specify the timestamp of when the EPUB 3.0 book was last modified. The "dcterms:modified" property must be specified in a "meta" element as shown below: &lt;meta propert...
2018-05-19, 918👍, 0💬

Supporting Hidden Form Fields in PHP
How To Support Hidden Form Fields in PHP? Hidden fields are special fields in a form that are not shown on the Web page. But when the form is submitted, values specified in the hidden fields are also submitted to the Web server. A hidden field can be specified with the &lt;INPUT TYPE=HIDDEN ...&...
2016-11-08, 918👍, 0💬

Sending FTP Request with urllib.request.urlopen
How to send an FTP request with the urllib.request.urlopen() function? If an FTP server supports anonymous access, you can send an FTP request to retrieve a directory list, or download a file using the urllib.request.urlopen() function: Here is a Python example on how to get a directory list from an...
2018-09-13, 916👍, 0💬

'cellspacing' - White Spaces between HTML Table Cells
How To Control White Spaces between Table Cells? White spaces between cells refer to the vertical space between a upper cell and a lower cell in a table column, and the horizontal space between a left cell and a right cell in a table row. If inner borders are turned on, white spaces between cells ap...
2017-05-13, 913👍, 0💬

EpubCheck 4.0.2 Command Options
What are command options are supported by EpubCheck 4.0.2? You can get a list of command options by running the EpubCheck 4.0.2 help command: \fyicenter&gt;java -jar epubcheck-4.0.2\epubcheck.jar --help EpubCheck v4.0.2 When running this tool, the first argument should be the name (with the path...
2018-06-06, 911👍, 0💬

EPUB 3.0 Metadata - dc:creator and dc:contributor Elements
What is EPUB 3.0 Metadata "dc:creator" and "dc:contributor" elements? EPUB 3.0 Metadata "dc:creator" and "dc:contributor" are optional metadata elements to specify authors and contributors of the EPUB 3.0 book. For example, the following two elements specify the author and the illustrator of the boo...
2018-05-19, 904👍, 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, 901👍, 0💬

Looping through an Array in PHP
How to Loop through an Array in PHP? The best way to loop through an array is to use the "foreach" statement. There are two forms of "foreach" statements: foreach ($array as $value) {} - This gives you only one temporary variable to hold the current value in the array. foreach ($array as $key=&g...
2017-02-03, 900👍, 0💬

Escape Sequences in Double-Quoted Strings in PHP
How Many Escape Sequences Are Recognized in Double-Quoted Strings? There are 12 escape sequences you can use in double-quoted strings: \\ - Represents the back slash character. \" - Represents the double quote character. \$ - Represents the dollar sign. \n - Represents the new line character (ASCII ...
2016-10-13, 899👍, 0💬

'set-body' Azure API Policy Statement
How to use the "set-body" Policy Statement for an Azure API service operation? The "set-body" Policy Statement can be used to reset the body of the request when calling the backend service or the body of the response when returning response to the client system. The "set-body" Policy Statement can b...
2017-12-04, 898👍, 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, 898👍, 0💬

Sending an HTTP Request with 'urllib.request'
How to send an HTTP request using the "urllib.request" module? To send an HTTP request to the Internet, you can use the urllib.request.urlopen() function as described below: r = urllib.request.urlopen(url, data=None, [timeout, ]*, cafile=None, capath=None, cadefault=False, context=None) where: url c...
2018-09-24, 897👍, 0💬

Minimum Requirement of EPUB 3.1 File
What Is the minimum requirement of an EPUB 3.1 file? If you want to build an EPUB file that meets the minimum requirements of EPUB 3.1 specification, you need to prepare the following: 1. A text file called "mimetype" with one line listed below. It specifies the mimetype of an EPUB 3.1 book file. ap...
2018-06-27, 897👍, 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, 894👍, 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, 893👍, 0💬

Function Returns Data by Value in PHP
How Values Are Returned from Functions? in PHP? If a value is returned from a function, it is returned by value, not by reference. That means that a copy of the value is return. Here is a PHP script on how values are returned from a function: &lt;?php $favor = "vbulletin"; function getFavor() { ...
2016-12-08, 893👍, 0💬

Installing PHP for Windows
How To Download and Install PHP for Windows? The best way to download and install PHP on Windows systems is to: Go to http://www.php.net, which is the official Web site for PHP. Download PHP binary version for Windows in ZIP format. Unzip the downloaded file into a directory. You are done. No need t...
2016-10-13, 892👍, 0💬

VC# Command Line Compiler in Visual Studio 2017
How to use the VC# command line compiler provided by Visual Studio 2017? If you want to use the compile your VC# code from the command line, you can follow this tutorial to use the VC# command line compiler provided in Visual Studio 2017: 1. Create a simple VC# console application program, Hello.vb:...
2017-08-08, 891👍, 0💬

Understanding PHP Arrays and Their Basic Operations
Where to find tutorials in Understanding PHP Arrays and Their Basic Operations? A collection of tutorials to answer many frequently asked questions on basic understanding of PHP arrays. Clear answers are provided with tutorial exercises on declaring and creating arrays, assigning and retrieving arra...
2016-10-15, 891👍, 0💬

Verifying PHP Installation
How To Verify Your PHP Installation? PHP provides two execution interfaces: Command Line Interface (CLI) and Common Gateway Interface (CGI). If PHP is installed in the \php directory on your system, you can try this to check your installation: Run "\php\php -v" command to check the Command Line Inte...
2016-10-13, 890👍, 0💬

HTML 'table' Element Attributes
What Are the Attributes of a "table" Element? A "table" element may have the following commonly used attributes: "summary" - Specifies a text string as the summary of the table. "width" - Specifies the width of the table. "border" - Specifies the border width. "frame" - Specifies how the outer borde...
2017-05-13, 889👍, 0💬

'for ... in' Statement with List of Tuples
How to use "for ... in" statements with a list of tuples in Python code? Usually, "for ... in" statements are used with simple lists. But you can also use a "for ... in" statement with a list of tuples. In this case, you can put multiple looping variables inside the loop item: for (v1, v2, ... ) in ...
2018-08-14, 888👍, 0💬

Validate EPUB 3.0 Book with EpubCheck 4.0.2
How to validate EPUB 3.0 book with EpubCheck 4.0.2? You can follow this tutorial to validate EPUB 3.0 books with EpubCheck 4.0.2. 1. Download this EPUB 3.0 book file, Hello-3.0.epub. 2. Make sure EpubCheck 4.0.2 is installed in \fyicenter\epubcheck-4.0.2. 3. Run "java" command to with the EpubCheck ...
2018-06-06, 888👍, 0💬

PHP Built-in Functions for Strings
Where to find tutorials and answers to frequently asked questions for PHP Built-in Functions for Strings? A collection of frequently asked questions on manipulating strings in PHP. Clear answers are provided with tutorial exercises on string functions including strlen, trim, substr, chop, strpos, st...
2016-10-13, 886👍, 0💬

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