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<?php class DataHolder { private $rawData; private $parsedData; private $mapping = [ 'dbField1' => 'outputField1', 'dbField2' => ['outputField2' => ['parseFn1', 'parseFn2']] ]; private function parseFn1($value) { return $value * 2; } private function parseFn2($value) { return $value . "$"; } public function __construct(array $data) { $this->rawData = $data; $this->mapData(); } // Yes, I know the methods shouldn't be here but it rather be decoupled in another class and // injected with a DI it but I wrote it like this with example purposes only private function mapData() { foreach($this->mapping as $dbFieldName => $content) { if(isset($this->rawData[$dbFieldName])) { if(is_string($content)) { $parsedData[$content] = $this->rawData[$dbFieldName]; } else if (is_array($content)) { $frontFieldName = key($content); $functionsArray = reset($content); $value = $this->rawData[$dbFieldName]; foreach($functionsArray as $functionName) { $value = $this->{$functionName}($value); } $parsedData[$frontFieldName] = $value; } } } } public function getParseData() { return $this->parsedData; } $data = ['dbField1' => 5, 'dbField2' => 13]; $dh = new DataHolder($data); echo $dh->getParseData();