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Dieses Dokument verwendet PHP-Handbuch für chinesische Websites Freigeben
(PHP 5 >= 5.0.0)
ArrayIterator::offsetExists — Check if offset exists
$index
)Checks if the offset exists.
本函数还未编写文档,仅有参数列表。
index
The offset being checked.
TRUE
if the offset exists, otherwise FALSE