CachingIterator::getCache()函數是PHP中的內置函數,用於檢索緩存的內容。
用法:
array CachingIterator::getCache( void )
參數:該函數不接受任何參數。
返回值:該函數返回一個包含緩存項的數組。
以下示例程序旨在說明PHP中的CachingIterator::getCache()函數:
示例1:
<?php
// Declare an array
$arr = array('G', 'e', 'e', 'k', 's');
// Create a new CachingIterator
$cachIt = new CachingIterator(
new ArrayIterator($arr),
CachingIterator::FULL_CACHE
);
// Move to next position
$cachIt->next();
// Display the content of cache
var_dump($cachIt->getCache());
// Move to next position
$cachIt->next();
// Display the content of cache
var_dump($cachIt->getCache());
?>
輸出:
array(1) { [0]=> string(1) "G" } array(2) { [0]=> string(1) "G" [1]=> string(1) "e" }
示例2:
<?php
// Declare an ArrayIterator
$arr = array(
"a" => "Geeks",
"b" => "for",
"c" => "Geeks",
"d" => "Computer",
"e" => "Science",
"f" => "Portal"
);
// Create a new CachingIterator
$cachIt = new CachingIterator(
new ArrayIterator($arr),
CachingIterator::FULL_CACHE
);
// Move to next position
$cachIt->next();
$cachIt->next();
$cachIt->next();
// Display the content of cache
var_dump($cachIt->getCache());
// Move to next position
$cachIt->next();
// Display the content of cache
var_dump($cachIt->getCache());
?>
輸出:
array(3) { ["a"]=> string(5) "Geeks" ["b"]=> string(3) "for" ["c"]=> string(5) "Geeks" } array(4) { ["a"]=> string(5) "Geeks" ["b"]=> string(3) "for" ["c"]=> string(5) "Geeks" ["d"]=> string(8) "Computer" }
參考: https://www.php.net/manual/en/cachingiterator.getcache.php
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注:本文由純淨天空篩選整理自jit_t大神的英文原創作品 PHP | CachingIterator getCache() 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。