CODEWITHSUNDEEP
phparrays
Naren
Naren

Reputation: 11

How to delete an element from an array without using built-in function's in php?

How can i delete an element from an array without using built-in functions in php ? But php doesn't have any keyword like delete or remove in it. can anyone help me ?

Upvotes: 0

Views: 463

Answers (1)

Z_landbad
Z_landbad

Reputation: 85

Okay so from what I can see there is no logical way to do this and why do you want to do this? PHP was built with these functions for a reason and that's why we all use them.

I recommend you use the following

  • Use unset() Function to Delete an Element From an Array in PHP
  • Use array_splice() Function to Delete an Element From an Array in PHP
  • Use array_diff() Function to Delete an Element From an Array in PHP

unset()

<?php
//Declare the array
$flowers = array(
                "Rose",
                "Lili",
                "Jasmine",
                "Hibiscus",
                "Tulip",
                "Sun Flower",
                "Daffodil",
                "Daisy");

unset($flowers[1]);
echo "The array is:\n";
print_r($flowers);
?>

This function can delete one value at a time. The name of the array along with the element index ($flowers[1]) is passed as a parameter. This function does not change the index values. The index values remain the same as they were before.

array_splice()

<?php
//Declare the array
$flowers = array(
                "Rose",
                "Lili",
                "Jasmine",
                "Hibiscus",
                "Tulip",
                "Sun Flower",
                "Daffodil",
                "Daisy");

array_splice($flowers, 4, 3);
echo "The array is:\n";
print_r($flowers);
?>

The array $flowers is passed as a parameter to this function along with the starting index 4 and the number of elements we want to delete-3. In this way, we can delete multiple elements from an array.

array_diff()

<?php
//Declare the array
$flowers = array(
                "Rose",
                "Lili",
                "Jasmine",
                "Hibiscus",
                "Tulip",
                "Sun Flower",
                "Daffodil",
                "Daisy");

$flowers = array_diff($flowers, array("Rose","Lili"));
echo "The array is:\n";
print_r($flowers);
?>

Here, the first array that we have passed is $flowers and the second array contains the elements that we want to delete from $flowers. This function does not change the indexes of the elements of the array.

Upvotes: 1

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