Ds \ Deque::set()函數是PHP中的內置函數,用於在Deque中給定索引處設置值。
用法:
public Ds\Deque::set( $index, $value ):void
參數:該函數接受上述和以下所述的兩個參數:
- index:此參數保存要在其上設置元素的索引值。
- value:此參數保存要在給定索引處設置的值。
返回值:該函數不返回任何值。
以下示例程序旨在說明PHP中的Ds \ Deque::set()函數:
程序1:
<?php
// Declare a deque
$deck = new \Ds\Deque(["geeks", "for", "geeks", "practice"]);
echo("Elements of Deque\n");
// Display the Deque elements
print_r($deck);
// Updating the deque element at index 2
$deck->set(2, "geeksforgeeks");
echo("Deque after setting value at index 2\n");
// Display the Deque elements
print_r($deck);
?>
輸出:
Elements of Deque Ds\Deque Object ( [0] => geeks [1] => for [2] => geeks [3] => practice ) Deque after setting value at index 2 Ds\Deque Object ( [0] => geeks [1] => for [2] => geeksforgeeks [3] => practice )
程序2:
<?php
// Declare a deque
$deck = new \Ds\Deque([1, 2, 3, 4, 5, 6]);
echo("Elements of Deque\n");
// Display the Deque elements
print_r($deck);
// Updating the deque element at index 2
$deck->set(4, 10);
echo("Deque after setting value at index 2\n");
// Display the Deque elements
print_r($deck);
?>
輸出:
Elements of Deque Ds\Deque Object ( [0] => 1 [1] => 2 [2] => 3 [3] => 4 [4] => 5 [5] => 6 ) Deque after setting value at index 2 Ds\Deque Object ( [0] => 1 [1] => 2 [2] => 3 [3] => 4 [4] => 10 [5] => 6 )
參考: http://php.net/manual/en/ds-deque.set.php
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注:本文由純淨天空篩選整理自barykrg大神的英文原創作品 PHP | Ds\Deque set() Function。非經特殊聲明,原始代碼版權歸原作者所有,本譯文未經允許或授權,請勿轉載或複製。