Online PHP editor | rfc for vHTDv

@ 2019-10-27T23:43:49Z

<?php
/* 
 * step 1: create benchmark array
 * containing all consecutive dates from $start
 */
$start = '2019-10-27 16:30:00';
$days = 14; // total number of days (including $start)
$dateObj = new DateTimeImmutable($start);
$benchmarkDates[] = $dateObj->format('Y-m-d H:i:s'); // store the first bench date
for ($i = 1; $i < $days; $i++) {
    $period = 'P' . $i . 'D';
    $interval = new DateInterval($period);
    $dateObj0 = $dateObj->add($interval);
    $benchmarkDates[] = $dateObj0->format('Y-m-d H:i:s'); // store the next bench date
}

/*
 * create dummy array mimicking the OP's presented structure
 * create date gaps
 */
$start = '2019-10-27 16:30:00';
$days = 14; // total number of days (including $start)
$dateObj = new DateTimeImmutable($start);
$subject[0][] = ['datum' => $dateObj]; // store the first object
for ($i = 2; $i < $days; $i += 2) {
    $period = 'P' . $i . 'D';
    $interval = new DateInterval($period);
    $dateObj0 = $dateObj->add($interval);
    $subject[$i / 2][] = ['datum' => $dateObj0]; // store subsequent objects
}

/* step 2: get dates from subject array ($subject).
 */
foreach ($subject as $key => $value) {
    foreach ($value as $key => $value) {
        $subjectDates[] =  $value['datum']->format('Y-m-d H:i:s'); // store dates
    }
}


/*
 * step 3: find / store missing dates
 * check subject against benchmark
 */
foreach($benchmarkDates as $key => $value) {
    if(!in_array($value, $subjectDates)) {
        $missingDates[] = $value;
    }
}

echo 'benchmark array:' . "\r\n";
print_r($benchmarkDates);

echo 'subject array:' . "\r\n";;
print_r($subjectDates);

echo 'missing dates:' . "\r\n";;
print_r($missingDates);

Output for git.master, git.master_jit, rfc.property-hooks: benchmark array: Array ( [0] => 2019-10-27 16:30:00 [1] => 2019-10-28 16:30:00 [2] => 2019-10-29 16:30:00 [3] => 2019-10-30 16:30:00 [4] => 2019-10-31 16:30:00 [5] => 2019-11-01 16:30:00 [6] => 2019-11-02 16:30:00 [7] => 2019-11-03 16:30:00 [8] => 2019-11-04 16:30:00 [9] => 2019-11-05 16:30:00 [10] => 2019-11-06 16:30:00 [11] => 2019-11-07 16:30:00 [12] => 2019-11-08 16:30:00 [13] => 2019-11-09 16:30:00 ) subject array: Array ( [0] => 2019-10-27 16:30:00 [1] => 2019-10-29 16:30:00 [2] => 2019-10-31 16:30:00 [3] => 2019-11-02 16:30:00 [4] => 2019-11-04 16:30:00 [5] => 2019-11-06 16:30:00 [6] => 2019-11-08 16:30:00 ) missing dates: Array ( [0] => 2019-10-28 16:30:00 [1] => 2019-10-30 16:30:00 [2] => 2019-11-01 16:30:00 [3] => 2019-11-03 16:30:00 [4] => 2019-11-05 16:30:00 [5] => 2019-11-07 16:30:00 [6] => 2019-11-09 16:30:00 )

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