SolrInputDocument::getFieldNames
(PECL solr >= 0.9.2)
SolrInputDocument::getFieldNames — Returns an array containing all the fields in the document
Description
public SolrInputDocument::getFieldNames ( ) : array
Returns an array containing all the fields in the document.
Parameters
This function has no parameters.
Return Values
Returns an array on success and false on failure.
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https://www.php.net/manual/en/solrinputdocument.getfieldnames.php