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@ 2018-04-27T12:12:24Z

<?php
$myarray = array(
                    array(
                    0 => 0,
                    1 => 70, 
                    2 => 19,
                    3 => 0
                    ),
                    array(
                    0 => 0,
                    1 => 24,
                    2 => 14
                    ),
                    array(
                    0 => 0,
                    1 => 15,
                    2 => 11,
                    3 => 0
                    ),
                    array(
                    0 => 0,
                    1 => 15,
                    2 => 27,
                    3 => 0
                    )
                );

foreach($myarray as $k => $values) {
    if (isset($myarray[$k+1])){
        $max = max(sizeof($values), sizeof($myarray[$k+1]));
        for($i = 0; $i < $max; ++$i) {
            $result[$k][$i] = (isset($values[$i]) ? $values[$i] : 0) - (isset($myarray[$k+1][$i]) ? $myarray[$k+1][$i] : 0);
        }
    } else {
        $result[$k] = $values;
    }
}

var_export($result);

Output for git.master, git.master_jit, rfc.property-hooks: array ( 0 => array ( 0 => 0, 1 => 46, 2 => 5, 3 => 0, ), 1 => array ( 0 => 0, 1 => 9, 2 => 3, 3 => 0, ), 2 => array ( 0 => 0, 1 => 0, 2 => -16, 3 => 0, ), 3 => array ( 0 => 0, 1 => 15, 2 => 27, 3 => 0, ), )

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Once feature-branches are merged or declined, they are no longer available. Their functionality (when merged) can be viewed from the main output page

2022-12-01 RFC: Property hooks - included in PHP 8.4
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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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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