Example of deleting elements from php array

$arr = array('a','b','c','d');
unset($arr[1]);
print_r($arr);
 ?>

After using unset before, the array $arr should compress the array to fill the missing element positions, but after print_r($arr), the final result is Array ( [0] => a [2] => c [3] => d );

Let’s take a look at the form of a digital array:

$arr = range(5,10,4);
print_r($arr);//Array ( [0] => 5 [1] => 6 [2] => 7 [3] => 8 [4] => 9 [5] => 10 )< /span>
 unset($arr[1]);//Array ( [0] => 5 [2] => ; 7 [3] => 8 [4] => 9 [5] => 10 )
print_r($arr);
?>

Example:

$arr = array('a','b','c','d');

array_splice($arr,1,1);

print_r($arr) ; // Array ( [0] => a [1] => c [2] => d )< /span>

?>

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