Deleting a specific item by using array_splice/array_slice in PHP

Question

How do I delete a specific item by using array_splice/array_slice in PHP?

for example: array('a','b','c'); how to just delete 'b'? so the array remains: array('a','c');

Thanks

Answer 1

Actually. I came up with two ways to do that. It depends on how you are going to handle with the index issue.

If you want to remain the indices after deleting certain elements from an array, you would need unset().

<?php 
   $array = array("Tom","Jack","Rick","Alex"); //the original array

   /*Here, I am gonna delete "Rick" only but remain the indices for the rest */
   unset($array[2]);
   print_r($array);
?>  

The out put would be:

Array ( [0] => Tom [1] => Jack [3] => Alex )  //The indices do not change!

However, if you need a new array without keeping the previous indices, then use array_splice():

<?php 
  $array = array("Tom","Jack","Rick","Alex"); //the original array
  /*Here,we delete "Rick" but change indices at the same time*/
  array_splice($array,2,1);  // use array_splice()

  print_r($array);
?>

The output this time would be:

Array ( [0] => Tom [1] => Jack [2] => Alex ) 

Hope, this would help!