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CachingIterator::offsetGet

(PHP 5 >= 5.2.0, PHP 7, PHP 8)

CachingIterator::offsetGetThe offsetGet purpose

Description

public CachingIterator::offsetGet(string $key): mixed
Warning

This function is currently not documented; only its argument list is available.

Parameters

key

Description...

Return Values

Description...

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User Contributed Notes 1 note

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ddrake at dreamingmind dot com
4 years ago
offsetGet($index) returns the value stored at $index in the cache. Until you've
iterated over the items, the cache is empty and the index will not exist.

<?php
$cache
= new \CachingIterator(
new
\ArrayIterator(['a', 'b', 'c', 'd']),
\CachingIterator::FULL_CACHE);

$shortRange = range(0, 1);

foreach (
$shortRange as $index) {
$cache->next();
}

echo
PHP_EOL . 'The cache' . PHP_EOL;
var_export($cache->getCache());
echo
PHP_EOL;

echo
$cache->offsetGet('1') . PHP_EOL;
echo
$cache->offsetGet('2') . PHP_EOL;
?>

The cache
array (
0 => 'a',
1 => 'b',
)

b
Undefined index: 2
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