core-bundle/src/Resources/contao/library/Contao/DcaExtractor.php
public function getDbInstallerArray()
	{
		$return = array();

		// Fields
		foreach ($this->arrFields as $k=>$v)
		{
			if (\is_array($v))
			{
				if (!isset($v['name']))
				{
					$v['name'] = $k;
				}

				$return['SCHEMA_FIELDS'][$k] = $v;
			}
			else
			{
				$return['TABLE_FIELDS'][$k] = '`' . $k . '` ' . $v;
			}
		}

		$quote = function ($item) { return '`' . $item . '`'; };

		// Keys
		foreach ($this->arrKeys as $k=>$v)
		{
			// Handle multi-column indexes (see #5556)
			if (strpos($k, ',') !== false)
			{
				$f = array_map($quote, StringUtil::trimsplit(',', $k));
				$k = str_replace(',', '_', $k);
			}
			else
			{
				$f = array($quote($k));
			}

			if ($v == 'primary')
			{
				$k = 'PRIMARY';
				$v = 'PRIMARY KEY  (' . implode(', ', $f) . ')';
			}
			elseif ($v == 'index')
			{
				$v = 'KEY `' . $k . '` (' . implode(', ', $f) . ')';
			}
			else
			{
				$v = strtoupper($v) . ' KEY `' . $k . '` (' . implode(', ', $f) . ')';
			}

			$return['TABLE_CREATE_DEFINITIONS'][$k] = $v;
		}

		$return['TABLE_OPTIONS'] = '';

		// Options
		foreach ($this->arrMeta as $k=>$v)
		{
			if ($k == 'engine')
			{
				$return['TABLE_OPTIONS'] .= ' ENGINE=' . $v;
			}
			elseif ($k == 'charset')
			{
				$return['TABLE_OPTIONS'] .= ' DEFAULT CHARSET=' . $v;
			}
			elseif ($k == 'collate')
			{
				$return['TABLE_OPTIONS'] .= ' COLLATE ' . $v;
			}
		}

		return $return;
	}
public function getDbInstallerArray()
	{
		$return = array();

		// Fields
		foreach ($this->arrFields as $k=>$v)
		{
			if (\is_array($v))
			{
				if (!isset($v['name']))
				{
					$v['name'] = $k;
				}

				$return['SCHEMA_FIELDS'][$k] = $v;
			}
			else
			{
				$return['TABLE_FIELDS'][$k] = '`' . $k . '` ' . $v;
			}
		}

		$quote = function ($item) { return '`' . $item . '`'; };

		// Keys
		foreach ($this->arrKeys as $k=>$v)
		{
			// Handle multi-column indexes (see #5556)
			if (strpos($k, ',') !== false)
			{
				$f = array_map($quote, StringUtil::trimsplit(',', $k));
				$k = str_replace(',', '_', $k);
			}
			else
			{
				$f = array($quote($k));
			}

			if ($v == 'primary')
			{
				$k = 'PRIMARY';
				$v = 'PRIMARY KEY  (' . implode(', ', $f) . ')';
			}
			elseif ($v == 'index')
			{
				$v = 'KEY `' . $k . '` (' . implode(', ', $f) . ')';
			}
			else
			{
				$v = strtoupper($v) . ' KEY `' . $k . '` (' . implode(', ', $f) . ')';
			}

			$return['TABLE_CREATE_DEFINITIONS'][$k] = $v;
		}

		$return['TABLE_OPTIONS'] = '';

		// Options
		foreach ($this->arrMeta as $k=>$v)
		{
			if ($k == 'engine')
			{
				$return['TABLE_OPTIONS'] .= ' ENGINE=' . $v;
			}
			elseif ($k == 'charset')
			{
				$return['TABLE_OPTIONS'] .= ' DEFAULT CHARSET=' . $v;
			}
			elseif ($k == 'collate')
			{
				$return['TABLE_OPTIONS'] .= ' COLLATE ' . $v;
			}
		}

		return $return;
	}
Return an array that can be used by the database installer

@return array The data array