prev: to move the cursor to previous element of an array
WE can rewind of move backward the internal pointer by one step by using prev()
prev(array) ;
We will move to the last element of the array by using end() and then apply prev().
Example
$my_array=array("First One", "Second One", "Third One", "Fourth One", "Fifth One");
end($my_array); // Move to last element
echo prev($my_array); // Output : Fourth One
It returns False when the pointer or cursor is in first element of the array or not pointing to any element.
$my_array=array("First One", "Second One", "Third One", "Fourth One", "Fifth One");
if(prev($my_array)){
echo " Current value : ".current($my_array);
}else{
echo "The pointer moved beyond last element or the array is empty ";
}
In above case the cursor is in first element when the array is created so the prev() function will return FALSE.
$my_array=array("First One", "Second One", "Third One", "Fourth One", "Fifth One");
echo current($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
