2. In PHP language, write a program to input two strings x,y and print the string tormed by concatenating the strings x.y in the order xyxy.

Write a function that accepts a pointer to an integer array and the array's size as arguments. The function should allocate a new array, copy the items from the original array to the new one in reverse order, and then deallocate the original array.

In python: The isUpper method converts a string to all uppercase characters    True  False

Write a php program to get the 10 different strings from user entered string. for example:- string_1 = "ab" string_2 = "ba" these both are different strings