what is the use of count() function in PHP?

what is the use of count() function in PHP?

The count() function is used to count elements of an array or the properties of an object.

Define constant?

Define constant?

A constant like variable is a temporary placeholder in memory that holds a value .its value never changes.

What is the use of ”echo” statement in php?

What is the use of ”echo” statement in php?

It is also used to output data to the screen but the difference that it has no return value it can take multiple parameters

What is the use of “print” statement in php?

What is the use of  “print”  statement in php?

It is used to output data to screen.but difference is that it has a return value of 1 so it can be used in expression it can take one argument.

Define Homepage?

Define Homepage?

A homepage is a web page that serer as the starting point of website. It is the default webpage that loads when you visit a web address that only contains domain name.

Define Array?

Define Array?

 An array is a data structure that contains a group of elements. Typically these elements are all of the same data type ,such as an integer or string.

Define PHP?

Define PHP?

PHP is a web server side scripting language. PHP scripts are executed at web server. Their output which is pure HTML is returned to the requesting browser.