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@ 2014-10-13T22:56:09Z

<?php
class DataHolder {
	private $rawData;
	private $parsedData;
	
	private $mapper = [
		'dbField1' => 'outputField1',
		'dbField2' => ['outputField2' => ['parseFn1', 'parseFn2']]
	];

	private function parserFn1($value) {
		return $value * 2;
	}

	private function parserFn2($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->rawData as $dataItem) {
			foreach($this->mapping as $dbFieldName => $content) {
				if(isset($dataItem[$dbFieldName])) {
					var_dump($dataItem[$dbFieldName]);
				}
			}
		}
			
	}
}

$data = ['dbField1' => 5, 'dbField2' => 13];
$dh = new DataHolder($data);

Output for git.master, git.master_jit, rfc.property-hooks: Warning: Undefined property: DataHolder::$mapping in /in/e5EtE on line 28 Warning: foreach() argument must be of type array|object, null given in /in/e5EtE on line 28 Warning: Undefined property: DataHolder::$mapping in /in/e5EtE on line 28 Warning: foreach() argument must be of type array|object, null given in /in/e5EtE on line 28

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2020-03-21 RFC: Is_Literal - declined
2020-12-04 Enumerations - included in PHP 8.1
2018-06-15 Typed Properties v2 - implemented in PHP 7.4
2016-08-12 Object typehint - included in PHP 7.2
2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn
2016-04-19 Lexical scope support for anonymous classes - suspended
2016-04-17 Functional Interfaces - declined
2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0
2015-08-27 Callable Prototypes - declined
2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions
2015-02-18 Scalar type hints v5 - included in PHP 7
2015-02-14 Union Types - declined
2013-09-22 Anonymous classes - included in PHP 7

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