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@ 2017-07-08T18:36:22Z

<?php

class Zillow {
 
   
    private static $instance = null;
 

    public static function get_instance() {
 
        if ( null == self::$instance ) {
            self::$instance = new self;
        }
 
        return self::$instance;
 
    } // end get_instance;
 
    
    private function __construct() {
 
    } // end constructor
 
 
    public static function sort($data=array())
    {   

        array_multisort(
            array_column($data, 'rent'), SORT_ASC, SORT_NUMERIC,
            array_column($data, 'street'), SORT_ASC, SORT_NATURAL, 
            array_column($data, 'unit'), SORT_DESC, SORT_REGULAR,
            $data
        );

        return  $data;

    } // end array_orderby 


} // end class


// Sample array()
$data = array();
$data[] = array('id' => 1, 'number' => '130', 'street' => 'Battery St',
'unit' => '1', 'rent' => 1200);
$data[] = array('id' => 1, 'number' => '130', 'street' => 'Battery St',
'unit' => '3', 'rent' => 1800);
$data[] = array('id' => 1, 'number' => '1049', 'street' => 'Leavenworth
St', 'unit' => '11', 'rent' => 800);
$data[] = array('id' => 1, 'number' => '130', 'street' => 'Battery St',
'unit' => '10', 'rent' => 3400);
$data[] = array('id' => 1, 'number' => '1059', 'street' => 'Leavenworth
St', 'unit' => '10', 'rent' => 1450);
$data[] = array('id' => 1, 'number' => '130', 'street' => 'Battery St',
'unit' => '5', 'rent' => 1000);



$zillow = Zillow::get_instance();
$printed_data = $zillow->sort($data);

echo '<pre>';
var_dump($printed_data);
echo '</pre>';

Output for git.master, git.master_jit, rfc.property-hooks: <pre>array(6) { [0]=> array(5) { ["id"]=> int(1) ["number"]=> string(4) "1049" ["street"]=> string(14) "Leavenworth St" ["unit"]=> string(2) "11" ["rent"]=> int(800) } [1]=> array(5) { ["id"]=> int(1) ["number"]=> string(3) "130" ["street"]=> string(10) "Battery St" ["unit"]=> string(1) "5" ["rent"]=> int(1000) } [2]=> array(5) { ["id"]=> int(1) ["number"]=> string(3) "130" ["street"]=> string(10) "Battery St" ["unit"]=> string(1) "1" ["rent"]=> int(1200) } [3]=> array(5) { ["id"]=> int(1) ["number"]=> string(4) "1059" ["street"]=> string(14) "Leavenworth St" ["unit"]=> string(2) "10" ["rent"]=> int(1450) } [4]=> array(5) { ["id"]=> int(1) ["number"]=> string(3) "130" ["street"]=> string(10) "Battery St" ["unit"]=> string(1) "3" ["rent"]=> int(1800) } [5]=> array(5) { ["id"]=> int(1) ["number"]=> string(3) "130" ["street"]=> string(10) "Battery St" ["unit"]=> string(2) "10" ["rent"]=> int(3400) } } </pre>

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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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