Returns an array of all the names of the properties

# SolrObject::getPropertyNames

(PECL solr >= 0.9.2)

SolrObject::getPropertyNames — Returns an array of all the names of the properties

### Beschreibung

public function SolrObject::getPropertyNames(): array

Returns an array of all the names of the properties

### Parameter-Liste

Diese Funktion besitzt keine Parameter.

### Rückgabewerte

Returns an array.

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