system/Database/BaseConnection.php
public function tableExists(string $tableName): bool
	{
		return in_array($this->protectIdentifiers($tableName, true, false, false), $this->listTables());
	}
public function tableExists(string $tableName): bool
	{
		return in_array($this->protectIdentifiers($tableName, true, false, false), $this->listTables());
	}
Determine if a particular table exists

@param  string $tableName
@return boolean