array ( 0 => 'index.php', 1 => 'PHP Manual', ), 'head' => array ( 0 => 'UTF-8', 1 => 'de', ), 'this' => array ( 0 => 'ds-set.diff.php', 1 => 'Ds\\Set::diff', ), 'up' => array ( 0 => 'class.ds-set.php', 1 => 'Ds\\Set', ), 'prev' => array ( 0 => 'ds-set.count.php', 1 => 'Ds\\Set::count', ), 'next' => array ( 0 => 'ds-set.filter.php', 1 => 'Ds\\Set::filter', ), 'alternatives' => array ( ), 'source' => array ( 'lang' => 'en', 'path' => 'reference/ds/ds/set/diff.xml', ), 'history' => array ( ), ); $setup["toc"] = $TOC; $setup["toc_deprecated"] = $TOC_DEPRECATED; $setup["parents"] = $PARENTS; manual_setup($setup); contributors($setup); ?>

Ds\Set::diff

(PECL ds >= 1.0.0)

Ds\Set::diff — Creates a new set using values that aren't in another set

Beschreibung

public Ds\Set::diff(Ds\Set $set): Ds\Set

Creates a new set using values that aren't in another set.

A \ B = {x ∈ A | x ∉ B}

Parameter-Liste

set

Set containing the values to exclude.

Rückgabewerte

A new set containing all values that were not in the other set.

Siehe auch

Beispiele

Beispiel #1 Ds\Set::diff() example

<?php
$a = new \Ds\Set([1, 2, 3]);
$b = new \Ds\Set([3, 4, 5]);

var_dump($a->diff($b));
?>

Das oben gezeigte Beispiel erzeugt eine ähnliche Ausgabe wie:

object(Ds\Set)#3 (2) {
  [0]=>
  int(1)
  [1]=>
  int(2)
}