How does Google Plus helps in Seo?


Google Plus helps the promoted web pages to get plus ones which are considered
as genuine votes by Google.
Using Google Plus for Seo

search-friendly URIs?

One characteristic of a well-optimized site is the presence of search-friendly URIs.
Search-friendly URIs include keywords related to the main subject of the page
directly within the address of the page.

PHP?

PHP (Hyper text Pre Processor) is a scripting language commonly used for web applications

in_array() function in php?

It  checks if a value exists in an array

calculate the sum of values in an array ?

array_sum method can calculate sum of values in an array

How we know browser properties?

echo $_SERVER['HTTP_USER_AGENT'];

$browser = get_browser();
foreach ($browser as $name => $value) {
echo “$name $value
\n”;
}

get_browser   returns the capabilities of the user's browser.

What is CAPTCHA?

CAPTCHA stands for Completely Automated Public Turing Test
to tell Computers and Humans  Apart.the application can be fairly
 assured that there is a human client using it.

MySQL data directory?

MySQL data directory is most important location in which all 
MySQL databases are stored. The default data directory is located in the file mysql.lf.

difference between mysql_connect and mysql_pconnect?


Mysql_connect:
 Opens a new connection to the database
  The database connection can be closed
  Opens the page every time the page is loaded.

Mysql_pconnect:
 Opens a persistent connection to the database.
The database connection can not be closed.
The page need not be opened every time the page is loaded.

php interview questions