Remove keys from an associative array in PHP

Today we’ll write a short article on how to remove keys from an associative array in PHP and get an array without keys to return a new reindex array which starts with index 0.

Refer the article to get keys from an associative array in PHP.

Ways to remove keys from associative array

1. Using built-in function
2. Using custom function

1. Using built-in function

We have built-in array_values() function to remove the keys and re-create the array with new keys starting from 0. It returns an indexed array of values.

Syntax:

array_values(array)

Parameter:

It required only a single parameter that specifies the array. Refer to the following example.

Example:

<!--?php
$userArray = array(
	"John"=-->"John",
	"Michael"=>"Michael",
	"Christopher"=>"Christopher",
	"Alexander"=> "Alexander",
	"Samuel"=> "Samuel",
);

$new_userArray = array_values($userArray);
print_r($new_userArray);
?>

// Output:

Array
(
    [0] => John
    [1] => Michael
    [2] => Christopher
    [3] => Alexander
    [4] => Samuel
)

2. Using custom function

We can also remove the keys and get an array values using foreach loop with custom function.

<!--?php<p-->

$userArray = array(
	"John"=>"John",
	"Michael"=>"Michael",
	"Christopher"=>"Christopher",
	"Alexander"=> "Alexander",
	"Samuel"=> "Samuel",
);

$new_userArray = array();
foreach($userArray as $user){
	$new_userArray[] = $user;
}
print_r($new_userArray);

?>

// Output:

Array
(
    [0] => John
    [1] => Michael
    [2] => Christopher
    [3] => Alexander
    [4] => Samuel
)

That’s it for today.
Thank you for reading. Happy Coding..!!