prev: to move the cursor to previous element of an array

prev(array) ;

$my_array=array("First One", "Second One", "Third One", "Fourth One", "Fifth One");
end($my_array); // Move to last element 
echo prev($my_array); // Output : Fourth One

$my_array=array("First One", "Second One", "Third One", "Fourth One", "Fifth One");
if(prev($my_array)){
echo " Current value : ".current($my_array);
}else{
echo "The pointer moved beyond last element or the array is empty ";
}

$my_array=array("First One", "Second One", "Third One", "Fourth One", "Fifth One");

echo current($my_array); // Output : First One 
echo next($my_array); // Output : Second One 
echo next($my_array); // Output : Third One 
echo prev($my_array); // Output : Second One 
echo end($my_array); // Output : Fifth One 
echo reset($my_array); // Output : First One