Php/docs/solrdocument.fieldexists
来自菜鸟教程
SolrDocument::fieldExists
(PECL solr >= 0.9.2)
SolrDocument::fieldExists — Checks if a field exists in the document
说明
public SolrDocument::fieldExists
( string $fieldName
) : bool
Checks if the requested field as a valid fieldname in the document.
参数
fieldName- The name of the field.
返回值
Returns true if the field is present and false if it does not.
