method_exists () in php?

<?php

classA

{

publice function foo()

}

echo “foo”;

}

publice function bar()

{

if(method_exists($this,’foo’))

}

else

{

echo “method does not”;

}

$obj=newA;

$obj->barb;

Output

method exists

जावास्क्रिप्ट switch case स्टेटमेंट(JAVASCRIPT PRACTICAL :- 3)