<< < 1 2 3 4 5 6 7 8 9 10 > >>   Sort: Date

PHP Built-in Functions for Arrays
Where to find tutorials on how to use PHP built-in functions to manage arrays? A collection of tutorials to answer many frequently asked questions on how to PHP functions to manage arrays. Clear answers are provided with tutorial exercises on searching keys and values, sorting arrays, merging two ar...
2017-01-29, 1371👍, 0💬

Atom Online Validator at w3.org
How to use the Atom Online Validator at w3.org? w3.org feed validation service is provided at http://validator.w3.org/feed/. It offers you two methods to validate your Atom feed document: Validate by URL - Validating a feed file by entering the URL where the feed file is located. Validate by Direct ...
2017-12-31, 1360👍, 0💬

"link" - Link Object Files (*.obj)
How to use "link" command tool to link objet files? If you have object files previously compiled by your or others, you can follow this tutorial to link them into executable files: 1. Create a simple C++ program, Hello.cpp, with a text editor: #include &lt;iostream&gt; using namespace std; v...
2017-08-21, 1360👍, 0💬

Looping through an Array without "foreach" in PHP
How To Loop through an Array without Using "foreach" in PHP? PHP offers the following functions to allow you loop through an array without using the "foreach" statement: reset($array) - Moves the array internal pointer to the first value of the array and returns that value. end($array) - Moves the a...
2017-01-05, 1360👍, 0💬

Creating a Directory in PHP
How To Create a Directory in PHP? You can use the mkdir() function to create a directory. Here is a PHP script example on how to use mkdir(): &lt;?php if (file_exists("/temp/download") ){ print("Directory already exists.\n"); } else { mkdir("/temp/download"); print("Directory created.\n"); } ?&a...
2016-11-24, 1352👍, 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, 1349👍, 0💬

Supporting a Multiple-Page Form in PHP
How To Support Multiple-Page Forms in PHP? If you have a long form with a lots of fields, you may want to divide the fields into multiple groups and present multiple pages with one group of fields on one page. This makes the a long form more user-friendly. However, this requires you to write good sc...
2016-11-05, 1348👍, 0💬

FYIcenter JSON Validator and Formatter
FYIcenter JSON Validator and Formatter is an online tool that checks for syntax errors of JSON text string and converts it to a pretty format.
2017-11-25, 1342👍, 2💬

💬 2017-11-25 Eric: Agree.

💬 2017-08-13 Neil: Not too bad!

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, 1341👍, 0💬

EPUB 2.0 Metadata in Calibre Book Library
How to view EPUB 2.0 metadata in Calibre book Library? You can follow this tutorial to view EPUB 2.0 metadata in Calibre book library. 1. Click Row-Your-Boat-2.0.epub to download this sample EPUB 2.0 book. 2. Unzip and open package.opf. You see the following metadata elements: &lt;package xmlns=...
2019-01-12, 1340👍, 0💬

Selecting an Existing Database in PHP
How To Select an Exiting Database in PHP? The first thing after you have created a connection object to the MySQL server is to select the database where your tables are locate, by using the mysql_select_db() function. If your MySQL server is offered by your Web hosting company, they will assign a da...
2016-10-20, 1334👍, 0💬

'align' - Horizontal Alignment HTML Tables
How To Control Horizontal Alignment in Table Cells? By default, text in all table cells are aligned to the left horizontally. If you want to control horizontal alignment yourself, you need to use the "align" attribute in a "tr" element or a "td" element: &lt;tr align="left|center|right"& gt;...
2017-05-05, 1330👍, 0💬

Quoting Date and Time Values in PHP
How To Quote Date and Time Values in SQL Statements in PHP? If you want to provide date and time values in a SQL statement, you should write them in the format of "yyyy-mm-dd hh:mm:ss", and quoted with single quotes ('). The tutorial exercise below shows you two INSERT statements. The first one uses...
2016-10-19, 1329👍, 0💬

'valign' - Vertical Alignment in HTML Table
How To Control Vertical Alignment? By default, text in all table cells are aligned to the top vertically. If you want to control vertical alignment yourself, you need to use the "valign" attribute in a "tr" element or a "td" element: &lt;tr valign="top|middle|bottom"& ;gt;- Set vertical align...
2017-05-05, 1323👍, 0💬

Generating and Processing Form with the Same Script in PHP
How To Generate and Process a Form with the Same Script in PHP? In previous exercises, a Web form is generated by one script, and processed by another script. But you could write a single script to do both. You just need to remember to: Use same script name as the form generation script in the "acti...
2016-11-08, 1322👍, 0💬

Running a PHP Script
How To Run a PHP Script? A standard alone PHP script can be executed directly with the PHP Command Line Interface (CLI). Write the following script in a file called hello.php: &lt;?php echo "Hello world!"; ?&gt; This script can be executed by CLI interface like this: \php\php hello.php You s...
2016-10-13, 1307👍, 0💬

Creating an Array with a Sequence in PHP
How To Create an Array with a Sequence of Integers or Characters in PHP? The quickest way to create an array with a sequence of integers or characters is to use the range() function. It returns an array with values starting with the first integer or character, and ending with the second integer or c...
2017-01-05, 1301👍, 0💬

JSON to XML Conversion at freeformatter.com
How to use the JSON to XML Conversion Tool at freeformatter.com? If you want to try the JSON to XML Conversion Tool at freeformatter.com, you can follow this tutorial: 1. Go to the JSON to XML Conversion Tool page at freeformatter.com. 2. Enter the following JSON value in the text area: ["Hello", 3....
2018-03-18, 1295👍, 0💬

Using an Array as a Stack in PHP
How To Use an Array as a Stack in PHP? A stack is a simple data structure that manages data elements following the first-in-last-out rule. You use the following two functions together to use an array as a stack: array_push($array, $value) - Pushes a new value to the end of an array. The value will b...
2017-01-11, 1295👍, 0💬

Specifying Argument Default Values in PHP
How To Specify Argument Default Values? in PHP? If you want to allow the caller to skip an argument when calling a function, you can define the argument with a default value when defining the function. Adding a default value to an argument can be done like this "function name($arg=expression){}. Her...
2016-12-04, 1293👍, 0💬

Copying an Array in PHP
Can You Copy an Array in PHP? You can create a new array by copying an existing array using the assignment statement. Note that the new array is not a reference to the old array. If you want a reference variable pointing to the old array, you can use the reference operator "&amp;". Here is a PHP...
2017-02-03, 1282👍, 0💬

JSON-parse-Transformed.html - JSON.parse() Value Transformed
How to write a reviver function to transform values while the JSON.parse() function is parsing the JSON text string? Below is a good example on using a reviver function with the JSON.parse() call to transform parsed JSON element values: &lt;!-- JSON-parse-Transformed.html Copyright (c) FYIcenter...
2017-09-08, 1280👍, 0💬

Hello-3.0.epub - Navigation File: navigation.xhtml
How to create a navigation file like navigation.xhtml for an EPUB 3.1 book? At least one navigation file, like navigation.xhtml, is required for an EPUB 3.1 book in the book ZIP container. It provides navigation information like a table of contents of the book. Here is the requirement on a navigatio...
2018-11-29, 1267👍, 0💬

XML to JSON Conversion at jsonformatter.org
How to use the XML to JSON Conversion Tool at jsonformatter.org? If you want to try the XML to JSON Conversion Tool at jsonformatter.org, you can follow this tutorial: 1. Go to the JSON and XML Conversion Tool page at jsonformatter.org. 2. Enter the following XML document in the XML text area: &...
2018-03-18, 1267👍, 0💬

<< < 1 2 3 4 5 6 7 8 9 10 > >>   Sort: Date