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@ 2015-09-16T13:48:44Z

<?php

	class Record {
		protected $index=0; 	//page index
		protected $pages=[]; 	//pages array
		
		public function nextPage() {
			$this->index++;
		}
		public function addRecord($key, $value) {
			$this->pages[$this->index][$key] = $value; 
		}
		public function getPage($index) {
			if ($index > $this->index) 
				return NULL;
			else 
				return $this->pages[$this->index];
		}
	}
	
	class AdditiveRecord extends Record {
		private function getSums($range) {
			$sums = $this->pages[$range[0]];
			$lim = ($range[1] <= $this->index) ? $range[1] : $this->index;
			for ($i = $range[0]+1;$i<$lim;$i++) {
				foreach($this->pages[$i] as $k=>$v)
					$sums[$k] += $v;
			}
			return $sums;
		}
	}

    $m = new AdditiveRecord();
    for ($j = 1;$j<3;$j++) {
    for ($i = 1;$i<10;$i++) 
        $m.addElement($i,$j*10+$i);
    $m->nextPage();
    }
    $m->getSums([0,1]);

Output for git.master, git.master_jit, rfc.property-hooks: Fatal error: Uncaught Error: Call to undefined function addElement() in /in/MraKW:36 Stack trace: #0 {main} thrown in /in/MraKW on line 36
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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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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