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@ 2019-01-10T23:13:01Z

<?php

trait Singleton {
	
    # Holds Parent Instance
    private static  $_instance;
	
    # Holds Reference To zVal
    protected       $_args;

    # Create The Instance
    protected function __construct() {}

    # Static Call To Get Instance
    public static function getInstance() {
        return self::$_instance ?? (self::$_instance = new self());
    }
	
	# Bind zVal Of Passed Reference To Index
	protected function _bindParam(&$val) {
		$this->_arg = &$val;
		return $this;
	}
	
}

abstract class Model {
	abstract public function save();
	
	# Set your DB up here
}

class MyModel extends Model {
	
	use \Singleton {
		_bindParam as public bindParam;
	}
	
	public function save() {
		print_r($this->_arg);
	}
}

MyModel::getInstance()->bindParam($row);

foreach([['A', 'B', 'C'], ['D', 'E', 'F'], ['G', 'H', 'I']] as $key => $row) {
	$row[0] = 'Changed';
	MyModel::getInstance()->save();
}

Output for git.master, git.master_jit, rfc.property-hooks: Deprecated: Creation of dynamic property MyModel::$_arg is deprecated in /in/ePbei on line 21 Array ( [0] => Changed [1] => B [2] => C ) Array ( [0] => Changed [1] => E [2] => F ) Array ( [0] => Changed [1] => H [2] => I )

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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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