(PECL solr >= 0.9.7)
SolrClient::getDebug — Returns the debug data for the last connection attempt
public SolrClient::getDebug ( ) : string
Returns the debug data for the last connection attempt
This function has no parameters.
Returns a string on success and null if there is nothing to return.
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https://www.php.net/manual/en/solrclient.getdebug.php