what is interface in php? how it is use?
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Answer / jadhav yeshwanth
An Interface is like a template similar to abstract class
with a difference where it uses only abstract methods.
In simple words, an interface is like a class using
interface keyword and contains only function
declarations(function with no body).
An Interface should be implemented in the class and all the
methods or functions should be overwridden in this class.
for eg:
interface InterfaceName{
function fun1();
function fun2(a,b);
}
class ClassName implements InterfaceName{
fuction fun1(){
function implementation.......
}
fuction fun2(a,b){
function implementation.......
}
}
| Is This Answer Correct ? | 125 Yes | 19 No |
Answer / asish kumar khuntia(mithu)
Interface is a object oriented concept,
It is the place where we can define the function.
When a class use that interface in that class the total
function body part will describe.
after that we can call that function in other class and we
are get result.
| Is This Answer Correct ? | 79 Yes | 26 No |
Answer / thirupathi rao
Interface is a prototype of method body.
when ever we want to develop the application by third party
vendor people, at that time we have to provide only interface.
why because the people gives the implementation in their own
way so we have to provide the interface.
| Is This Answer Correct ? | 30 Yes | 8 No |
Answer / sanjeev kumar
Interface: Since we all knows that PHP does not support the
multiple inheritance. But don't worry we have an excellent
idea to do the multiple inheritance in php is Interface.
Interface is just like a class using interface keyword and
contains only function declarations(function with no body).
function is defined in the classes where you call it.
Ex:-
interface FirstInterfName{
function Add();
function Sub(10,5);
}
interface SecondInterfName{
function glbfunc1();
function glbfunc2();
}
class ClassName implements FirstInterfName,SecondInterfName
{
fuction Add()
{
$a = 5;
$a = $a + 1;
echo $a;
}
fuction Sub($a,$b)
{
$c = $a -$b;
echo $c;
}
function glbfunc1()
{
Implements here method...............
}
function glbfunc2()
{
Implements here method...............
}
}
| Is This Answer Correct ? | 24 Yes | 7 No |
Answer / nur nahid hasan
Interface: Since we all knows that PHP does not support the
multiple inheritance. But don't worry we have an excellent
idea to do the multiple inheritance in php is Interface.
Interface is just like a class using interface keyword and
contains only function declarations(function with no body).
function is defined in the classes where you call it.
Ex:-
interface FirstInterfName{
function Add();
function Sub(10,5);
}
interface SecondInterfName{
function glbfunc1();
function glbfunc2();
}
class ClassName implements FirstInterfName,SecondInterfName
{
fuction Add()
{
$a = 5;
$a = $a + 1;
echo $a;
}
fuction Sub($a,$b)
{
$c = $a -$b;
echo $c;
}
function glbfunc1()
{
Implements here method...............
}
function glbfunc2()
{
Implements here method...............
}
}
| Is This Answer Correct ? | 19 Yes | 6 No |
Answer / raju
Interface gets useful when you need to extend a class from
more than one parent class since class can not do this.
Why would you want to implement just a single interface on a
class. After all, a class already has everything that an
interface has.
| Is This Answer Correct ? | 14 Yes | 8 No |
Answer / sivannarayana
interface = multiple inheritance
means:
An interface is a named collection of method definitions, without implementation.
example:
interface interfaceName{
public function func1();
public function func2();
}
//we will use this interface as
class ClassName implements interfaceName
{
//note all interface func's must implement here
}
| Is This Answer Correct ? | 5 Yes | 0 No |
Answer / karthi
interface =multiple inheritance
means:
An multiple inheritance is not supported in php that time we
using interface. It is implements two baseclasses but class
extends only one class.
| Is This Answer Correct ? | 4 Yes | 1 No |
Answer / neakdek
Why you can :
interface FirstInterfName{
function Add();
function Sub(10,5); // this line can u pass 10,5 like this
}
| Is This Answer Correct ? | 4 Yes | 8 No |
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