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@ 2013-08-07T13:12:18Z

<?php
trait setData {
    static function setData( $data ) {
        DataCollector::collectedData( 'set', $data );
    }
}

trait dataHandler {
    use setData;

    static function getCollectedData() {
		DataCollector::collectedData( 'get' );
    }
}

class DataCollector {
    use dataHandler;
    private static $CollectionData = array();

    private static function collectedData( $type, $value = NULL ) {
        if( strtolower( $type ) === 'set' ) {
            $CollectionData[] = $value;
            var_dump($CollectionData);
        }
        elseif( strtolower( $type ) === 'get' )
			return self::$CollectionData;
    }
}

class Form { use setData {} }

class Field extends Form {
    public function __construct( $type, $text = NULL ) {
        DataCollector::setData( $type );
    }
}

class A {
    use setData{}

    public function __construct( $type, $text = NULL ) {
        self::setData( $type );
    }
}

$Field1 = new Field( '1' );
$Field2 = new Field( '2' );
$A = new A( '3' );
DataCollector::setData('4');
dataHandler::setData('5');

var_dump( dataHandler::getCollectedData() );

Output for git.master, git.master_jit, rfc.property-hooks: array(1) { [0]=> string(1) "1" } array(1) { [0]=> string(1) "2" } Fatal error: Uncaught Error: Call to private method DataCollector::collectedData() from scope A in /in/LKsiK:4 Stack trace: #0 /in/LKsiK(42): A::setData('3') #1 /in/LKsiK(48): A->__construct('3') #2 {main} thrown in /in/LKsiK on line 4
Process exited with code 255.

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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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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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