Ds \ Sequence::reverse()函數是PHP中的一個內置函數,用於就地反轉序列。
用法:
void abstract public Ds\Sequence::reverse ( void )
參數:該函數不接受任何參數。
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 \ Sequence::reverse()函數:
程序1:
<?php
// Create new Vector
$seq = new \Ds\Vector([1, 2, 3, 4, 5]);
// Display the elements
print_r($seq);
echo("Sequence after reversing\n");
// Use reverse() function to reverse
// the element and display it
$seq->reverse();
print_r($seq);
?>
輸出:
Ds\Vector Object
(
[0] => 1
[1] => 2
[2] => 3
[3] => 4
[4] => 5
)
Sequence after reversing
Ds\Vector Object
(
[0] => 5
[1] => 4
[2] => 3
[3] => 2
[4] => 1
)
程序2:
<?php
// Create new Vector
$seq = new \Ds\Vector(["Geeks", "for", "Geeks",
"Computer", "Science", "Portal"]);
// Display the elements
print_r($seq);
echo("Sequence after reversing\n");
// Use reverse() function to reverse
// the element and display it
$seq->reverse();
print_r($seq);
?>
輸出:
Ds\Vector Object
(
[0] => Geeks
[1] => for
[2] => Geeks
[3] => Computer
[4] => Science
[5] => Portal
)
Sequence after reversing
Ds\Vector Object
(
[0] => Portal
[1] => Science
[2] => Computer
[3] => Geeks
[4] => for
[5] => Geeks
)
參考: https://www.php.net/manual/en/ds-sequence.reverse.php
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注:本文由純淨天空篩選整理自R_Raj大神的英文原創作品 PHP | Ds\Sequence reverse() 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。
