Imagining life without Google, Facebook and Twitter is almost impossible today. But, internet itself was a dark reality until 25 years ago. It was on March 12, 1989 that the world wide web (www) was born, thus marking its 25th birth anniversary today. But it was only in the mid-90s that web came into public life and changed the world in so many ways than one could have imagined.

According to web inventor Tim Berners-Lee, it was invented for very different reasons. On its silver jubilee, here’s everything you need to know about the web … Continue Reading →

Strings in PHP can be specified in four different ways: single quoted, double quoted, heredoc syntax and (since PHP 5.3.0) nowdoc syntax, the first two of them being by far the most frequently used.

It is important to know the difference between using single quotes and double quotes. In this post we will see the difference between them and which should be used when.


Single quoted strings are the easiest way to specify string. This method in used when we want to the string to be exactly as it is written. When string is specified in single quotes PHP will not evaluate it or interpret escape characters except single quote with backslash (‘) and backslash(\) which has to be escaped.

echo 'This is \'test\' string';
//Output: This is 'test' string

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Creating the Database

Create database “login” and create table “members” :

CREATE TABLE `members` (
`id` int(4) NOT NULL auto_increment,
`username` varchar(65) NOT NULL default '',
`password` varchar(65) NOT NULL default '',

INSERT INTO `members` VALUES (1, 'naveen', '123456');

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You are probably reading this post because have already noticed, that every time someone submitted a comment on your blog, signed up as a user or did anything that required WordPress to generate and send an e-mail, by default the “From Name” in that message appeared as “WordPress” and “From” address was “”.

If this is not the way you want it – read on, as there is an easy way of customizing both these fields.

So how can you change these WordPress default email settings for FromName and From address.

So far I found three ways of doing it:

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When a function having same name with different arguments it is called Function Overloading.

class calculate{
function add($a,$b){
return $a+$b;
function add($a,$b,$c){
return $a+$b+$c;
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In this article on PHP Interview Questions, I have compiled a list of very basic and fundamental PHP interview questions and answers for web developers. Every PHP web developer should know these basic questions of PHP. So, if you are preparing for any interview in PHP development, you should go through the following list of PHP basic interview questions. There PHP questions are based on very simple PHP concepts like basic introduction to PHP, Sessions and Cookies in PHP, Input / Output in PHP, Error Management in PHP, MySQL database connectivity in PHP, SQL Injection in PHP, Encryption and Decryption in PHP, Sending Emails in PHP, datatypes in PHP and many more. Lets have a look…

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Abstraction and Encapsulation are two important Object Oriented Programming (OOPS) concepts. Encapsulation and Abstraction both are interrelated terms.

Real Life Difference Between Encapsulation and Abstraction

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