3v4l.org

run code in 300+ PHP versions simultaneously

@ 2014-04-11T14:34:12Z

<?php
$originArr=array(
        array('amount'=>100,'date'=>'2014-03-29'),
        array('amount'=>120,'date'=>'2014-03-30'),
        array('amount'=>200,'date'=>'2014-03-31'),
    array('amount'=>300,'date'=>'2014-04-31'),
    array('amount'=>400,'date'=>'2014-05-31')
    );

    $newArr1 = array();
    $newArr2 = array();
    $tempArr = array();
    $resultArr = array();

    foreach($originArr as $el) {
        $newArr1[$el['date']] = $el['amount'];
    }

    foreach ($newArr1 as $k1 => $v1) {
        foreach ($newArr1 as $k2 => $v2) {
            $v1 += ($k1 > $k2) ? $v2 : 0;
        }
        $newArr2[$k1] = $v1;
     }

     foreach($newArr2 as $key => $value) {
        $tempArr['amount'] = $value;
        $tempArr['date'] = $key;
        $resultArr[] = $tempArr;
     }
var_dump($resultArr);

Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.7, 7.2.29 - 7.2.33, 7.3.12 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6: array(5) { [0]=> array(2) { ["amount"]=> int(100) ["date"]=> string(10) "2014-03-29" } [1]=> array(2) { ["amount"]=> int(220) ["date"]=> string(10) "2014-03-30" } [2]=> array(2) { ["amount"]=> int(420) ["date"]=> string(10) "2014-03-31" } [3]=> array(2) { ["amount"]=> int(720) ["date"]=> string(10) "2014-04-31" } [4]=> array(2) { ["amount"]=> int(1120) ["date"]=> string(10) "2014-05-31" } }

preferences:dark modelive preview

252.37 ms | 407 KiB | 352 Q