Answers - Reversing Strings

PHP:
echo strrev("Hello world!"); //outputs "!dlrow olleH"

Java:
String string="Hello World";
String reverse = new StringBuffer(string).reverse().toString();
System.out.println(reverse); //outputs "dlroW olleH"

C++:
string text = "Hello world";
reverse = string ( text.rbegin(), text.rend() );
cout << reverse; //outputs "dlrow olleH"

C: (must include <string.h>)
char arr[100];
arr = "Example text";
strrev(arr);
printf(arr); //outputs "txet elpmaxE"