PHP - Manual: SolrDocument::fieldExists
2025-02-27
(PECL solr >= 0.9.2)
SolrDocument::fieldExists — Checks if a field exists in the document
Checks if the requested field as a valid fieldname in the document.
fieldName
The name of the field.
官方地址:https://www.php.net/manual/en/solrdocument.fieldexists.php