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

Example: Traversing an Array in Reverse

$arr = ['apple', 'banana', 'cherry', 'date'];
end($arr);  // Move internal pointer to the end
echo prev($arr);  // Output: cherry

Example: Using array_prev() at the Beginning of an Array

$arr = ['apple', 'banana', 'cherry'];
echo prev($arr);  // Output: false (since the pointer is at the beginning)

Subhendu Mohapatra

Author & Instructor at plus2net

I write and maintain practical tutorials on Python, PHP, SQL, JavaScript, HTML, jQuery, and web development at plus2net. The tutorials focus on clear explanations, working examples, and code that readers can test and adapt while learning.

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