SolrDocument::serialize
(PECL solr >= 0.9.2)
SolrDocument::serialize — Used for custom serialization
Description
public SolrDocument::serialize ( ) : string
Used for custom serialization.
Parameters
This function has no parameters.
Return Values
Returns a string representing the serialized Solr document.
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https://www.php.net/manual/en/solrdocument.serialize.php