ArrayObject::offsetUnset


Unsets the value at the specified index.



<?php

void public ArrayObject::offsetUnset ( mix $index )


where,

$index = The index to be unset

?>

$index


The index being unset.



  1 EXERCISE   

<?php

$Dwarfs = [ 1 => 'Bashful', 2 => 'Doc', 
                   3 => 'Grumpy', 4 => 'Happy', 
                   5 => 'Sneezy', 6 => 'Sleepy', 7 => 'Dopey', 
                   8 => 'Snow White'];

$dwArrayObject = new ArrayObject($Dwarfs);

print_r($dwArrayObject);

for($j = 1; $j <= 7; $j++)
    $dwArrayObject->offsetUnset($j);

echo '<br><br>';

print_r($dwArrayObject);

?>

 RESULT   

ArrayObject Object ( [storage:ArrayObject:private] => Array ( [1] => Bashful [2] => Doc [3] => Grumpy [4] => Happy [5] => Sneezy [6] => Sleepy [7] => Dopey [8] => Snow White ) )

ArrayObject Object ( [storage:ArrayObject:private] => Array ( [8] => Snow White ) )