Remove all elements from positions 3 to (n 3):

 
<?
$pasta = array ("1", "2", "3","4","5","6","7");

$pasta = array_splice($pasta, 5, -3);
print_r( $pasta);
?>

1.	Inserting New Values to an Array: array array_splice(array $original, int $offset, int $length, array $new)
2.	array_splice
3.	array_splice() function replaces the designated elements specified by the offset and the optional length input parameters with the elements in the optional array replacement_array.
4.	Inserting New Values at an Arbitrary Point in an Indexed Array
5.	array remove
6.	Remove a portion of the array and replace it with something else
7.	Remove the fifth and sixth elements from the array:
8.	Replace the third and fourth elements with new elements:

Remove all elements from positions 3 to (n 3): : array_splice « Data Structure « PHP