(PECL solr >= 0.9.2)
SolrDocument::__isset — Checks if a field exists
$fieldName
Checks if a field exists
fieldName
Name of the field.
锟缴癸拷时锟斤拷锟斤拷 TRUE锟斤拷 锟斤拷锟斤拷锟斤拷失锟斤拷时锟斤拷锟斤拷 FALSE锟斤拷
TRUE
FALSE