Slette i array + rykke de efterfølgende values frem?

Hvordan sletter jeg i et array, hvorefter jeg vil rykke de efterfølgende values frem i arrayet... se eksemplet

array - [0] = 1, [1] = 2, [2] = 3, [3] = 4 // jeg vil slette 3
efter jeg har slettet vil jeg have det til at se sådan her ud:
array - [0] = 1, [1] = 2, [2] = 4

MVH. qff

Kode 

<?php
$Arr = array("1","2","3","4");
$Arr[2] = $Arr[3];
$Arr[3] = null;
?>

Kode 

$array = array(1,2,3,4);

// Remove value 3
foreach($array as $key => $val)
  if( $key == 3 )
    unset($array[$key]);

// Restructure.
$arrayold = $array;
$array = array();
foreach($arrayold as  $val)
  $array[] = $val;

Lidt mere generel løsning.

Kode 

$array = array(1,2,3,4);

// Remove value 3
foreach($array as $key => $val)
  if( $key == 3 )
    unset($array[$key]);

// Restructure.
$arrayold = $array;
$array = array();
foreach($arrayold as  $val)
  $array[] = $val;

Utestet.

Dennis Møllegaard Pedersen
http://dennis.moellegaard.dk

[Redigeret d. 29/02-04 10:41:12 af Dennis Møllegaard Pedersen]

[Redigeret d. 29/02-04 10:42:07 af Dennis Møllegaard Pedersen]

Kode 

function unset_array_element(&$array, $index){
  $elements = count($array);
  unset($array[$index]);
  for($i = $index; $i < $elements - 1; $i++){
     $array[$i] = $array[$i+1];
  }
   unset($array[$i+1]);
}

$array = array("hej1", "hej2", "hej3", "hej4", "hej5");

unset_array_element($array, 3);

Kode 

$products = $_SESSION[products];
$amount = $_SESSION[amounts];

if(isset($products)) {
if(array_search($_GET[slet], $products) !== false) {
	$slet = $_GET[slet];
	$search = array_search($slet, $products);
	echo $search;
	// Remove value 3
	foreach($products as $key => $val) {
		if($key >= $search) {
			if($products[$i+1] === NULL) {
				unset($_SESSION[products]);
				unset($_SESSION[amounts]);
			} else {
				array_splice($products, $i, 1, $products[$i+1]);
				array_splice($amounts, $i, 1, $amounts[$i+1]);
			}
		}
	}
}
}