Knowledge-Bases

How to shutdown a Mac

There are a couple of ways to Shutdown your Mac Press the Apple Key and then Shutdown Press Control+Eject together then choose Shutdown

How to solve error: 'PHP Warning: DOMDocument::createElement(): unterminated entity reference' when creating a new element using the DOMDocument object model

DOMDocument = Represents an entire HTML or XML document; serves as the root of the document tree. (PHP 5) DOMDocument::createElement() = Create new element node. (PHP 5) Now to the solution! Solution: Use the htmlentitites function to convert all applicable characters to HTML entities. $dom->createElement(‘value’, htmlentities($text_value)); htmlentitites = Convert all applicable characters to HTML entities (PHP 4, PHP 5) Problem should be solved!

How to subtract a number of days from todays date using PHP date function

$var = ‘2007-08-15’; $var_subtracted_date = date(‘Y-m-d’, strtotime(’-2 days’, strtotime($var))); Explanation of PHP functions: 1) FUNCTION date DESCRIPTION string date ( string $format [, int $timestamp ] ) PARAMETERS USED IN THIS EXAMPLE Y = A full numeric representation of a year, 4 digits (Examples: 1999 or 2003) m = Numeric representation of a month, with leading zeros (01 through 12) d = Day of the month, 2 digits with leading zeros (01 to 31) ...

How to suppress PHP error messages

At this piece of code to the top of your PHP script error_reporting(0); It’s always better to try and fix the errors than to hide them!!

How to transform a month number to month name using PHP

$month = 1; $month_name = date("F", mktime(0,0,0,$month,1,2011)); echo $month_name; //Will output January

How to transform a month number to the relevant month name using PHP

This can be obtained by combining the date function with the mktime function For example if I want to get Jan from the number 1 which represents the first monthin the year I would use something similar to the below $i = 1; //The number 1 represents January echo date("M",mktime(0,0,0,$i,1,2010)); //This will output Jan So if you want to output Feb the value of $i would be 2 etc USAGE: date = string date ( string $format [, int $timestamp ] ) (PHP 4 & 5) ...

How to turn off Caching using HTML in a webpage

Add the following code between the tags in your HTML page <meta http-equiv="Expires" content="0" /> <meta http-equiv="Pragma" content="no-cache" /> <meta http-equiv="Cache-Control" content="no-cache, no-store, must-revalidate" /> The above should turn off webpage caching

How to use Font Awesome Icons as Bullets

This could be accomplished by using the built in Font Awesome CSS classes Add the fa-ul class to the ul html tag Between the li tags add replacing the fa-stopCSS class with the icon class you would like to show as the bullet Example: <ul class="fa-ul"> <li>Bullet 1</il> <li>Bullet 2</il> <li>Bullet 3</il> <li>Bullet 4</il> <li>Bullet 5</il> </ul>

How to validate a date format using PHP

To check whether the date entered is in the correct format NOTE: We will use the following date format within this example YYYY-MM-DD Answer: Use the preg_match ‘Perform a regular expression match’ PHP function available for PHP 4 & 5 Find the correct expression And use the following code to check for the date format if(preg_match('/[12]\d{3}-[01]\d-[0123]\d/',$date)){ $msg = "Valid date"; }else{ $msg = "Invalid date"; }

IPhone 4 battery drains to quickly

This I’ve noticed happened to my IPhone just after coming back from Holiday in another country. What I did while I was away is, I switched the Date and Time on the phone to set the Time Zone automatically. Soon after that I’ve noticed that the battery life drains quickly from 90% to 10% in just a couple of hours. A couple of Days ago I’ve updated to iOS 5.1 so I’m sure it’s a bug in iOS 5 ...