Copy tables, (with changes), from an old table set to a new table set. Uses Laravel atm

Transition.php

private function copy($table, $changes = array(), $matches = array(), $ignoreID = true) {

	if(is_array($table)) {
		$oldTable = $table[0];
		$newTable = $table[1];
	} else {
		$oldTable = $table;
		$newTable = $table;
	}

	$newElements = array();
	$oldElements = DB::table($oldTable)->orderBy('id', 'ASC')->get();
	$relational = false;

	foreach($matches as $headKey => $match) {
		$relational = true;
		foreach($match as $key => $value) {
			if($key !== 'matchesOn') {
				$matches[$headKey][$key] = $this->splitTableCol($value);
			} else {
				$matches[$headKey][$key] = $this->splitDot($value);
			}
		}
	}

	foreach($oldElements as $element) {
		$insertable = array();
		$changedKeys = array();
		foreach($element as $key => $value) {

			$originalKey = $key;
			if(array_key_exists($key, $changes)) {
				$key = $changes[$key];
				$changedKeys[$originalKey] = $key;
			}
			if($ignoreID) {
				if($key == 'id') {
					continue;
				}
			}
			foreach($matches as $match) {
				if($newTable == $match['foreign']['table']) {
					$oldRecord = DB::table($match['primary']['table'])->where(function($query) use($changedKeys, $element, $match) {
						$oldKey = array_search($match['foreign']['col'], $changedKeys);
						$query->where($match['primary']['col'], '=', $element->$oldKey);
					})->first();

					$newRecord = DB::connection('beta')->table($match['primary']['table'])->where(function($query) use($match, $oldRecord) {
						foreach($match['matchesOn'] as $matchValue) {
							$query->where($matchValue, '=', $oldRecord->$matchValue);
						}
					})->first();

					$element->$match['foreign']['col'] = $newRecord->$match['primary']['col'];
				}
			}

			$insertable[$key] = $element->$originalKey;
		}
		$newElements[] = $insertable;
	}

	DB::connection('beta')->table($oldTable)->truncate();
	DB::connection('beta')->table($newTable)->insert($newElements);
	echo("Copied $table table to the new database.\n");
}

private function splitTableCol($name) {
	$res = explode('.', $name);
	return array(
		'table' => $res[0],
		'col' => $res[1]
	);
}

private function splitDot($value) {
	return explode('.', $value);
}