PHP - Manual: SolrInputDocument::getFieldCount
2024-11-14
(PECL solr >= 0.9.2)
SolrInputDocument::getFieldCount — Returns the number of fields in the document
Returns the number of fields in the document.
此函数没有参数。
Returns an integer on success 或者在失败时返回 false
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官方地址:https://www.php.net/manual/en/solrinputdocument.getfieldcount.php