PHP - Manual: SolrDocument::offsetExists
2024-11-13
(PECL solr >= 0.9.2)
SolrDocument::offsetExists — Checks if a particular field exists
$fieldName
): boolChecks if a particular field exists. This is used when the object is treated as an array.
fieldName
The name of the field.
成功时返回 true
, 或者在失败时返回 false
。
官方地址:https://www.php.net/manual/en/solrdocument.offsetexists.php