array ( 0 => 'index.php', 1 => 'PHP Manual', ), 'head' => array ( 0 => 'UTF-8', 1 => 'ja', ), 'this' => array ( 0 => 'ds-deque.copy.php', 1 => 'Ds\\Deque::copy', ), 'up' => array ( 0 => 'class.ds-deque.php', 1 => 'Ds\\Deque', ), 'prev' => array ( 0 => 'ds-deque.contains.php', 1 => 'Ds\\Deque::contains', ), 'next' => array ( 0 => 'ds-deque.count.php', 1 => 'Ds\\Deque::count', ), 'alternatives' => array ( ), 'source' => array ( 'lang' => 'en', 'path' => 'reference/ds/ds/deque/copy.xml', ), ); $setup["toc"] = $TOC; $setup["toc_deprecated"] = $TOC_DEPRECATED; $setup["parents"] = $PARENTS; manual_setup($setup); ?>
(PECL ds >= 1.0.0)
Ds\Deque::copy — Returns a shallow copy of the deque
この関数にはパラメータはありません。
A shallow copy of the deque.
例1 Ds\Deque::copy() example
<?php
$a = new \Ds\Deque([1, 2, 3]);
$b = $a->copy();
$b->push(4);
print_r($a);
print_r($b);
?>
上の例の出力は、 たとえば以下のようになります。
Ds\Deque Object ( [0] => 1 [1] => 2 [2] => 3 ) Ds\Deque Object ( [0] => 1 [1] => 2 [2] => 3 [3] => 4 )