dateComparisonDemo.php

<?php

/**
 * Get upcomming match schedule
 */
function getNextMatches($referenceTime = null)
{
    $matchSchedule = array(
            "2014-06-13 01:30:00" => array('team1' => 'BRA', 'team2' => 'CRO', 'date' => '2014-06-13 01:30:00', 'team1Class' => 'brazil', 'team2Class' => 'croatia'),
            "2014-06-13 21:30:00" => array('team1' => 'MEX', 'team2' => 'CMR', 'date' => '2014-06-13 21:30:00', 'team1Class' => 'mexico', 'team2Class' => 'cameroon'),
            "2014-06-14 00:30:00" => array('team1' => 'SPA', 'team2' => 'NET', 'date' => '2014-06-14 00:30:00', 'team1Class' => 'spain', 'team2Class' => 'netherlands'),
            "2014-06-14 03:30:00" => array('team1' => 'CHI', 'team2' => 'AUS', 'date' => '2014-06-14 03:30:00', 'team1Class' => 'chile', 'team2Class' => 'australia'),
            "2014-06-14 21:30:00" => array('team1' => 'COL', 'team2' => 'GRE', 'date' => '2014-06-14 21:30:00', 'team1Class' => 'colombia', 'team2Class' => 'greece'),
            "2014-06-15 00:30:00" => array('team1' => 'URU', 'team2' => 'CRC', 'date' => '2014-06-15 00:30:00', 'team1Class' => 'uruguay', 'team2Class' => 'costa-rica'),
            "2014-06-15 03:30:00" => array('team1' => 'ENG', 'team2' => 'ITA', 'date' => '2014-06-15 03:30:00', 'team1Class' => 'england', 'team2Class' => 'italy'),
            "2014-06-15 06:30:00" => array('team1' => 'CIV', 'team2' => 'JAP', 'date' => '2014-06-15 06:30:00', 'team1Class' => 'cote', 'team2Class' => 'japan'),
            "2014-06-15 21:30:00" => array('team1' => 'SWI', 'team2' => 'ECU', 'date' => '2014-06-15 21:30:00', 'team1Class' => 'switzerland', 'team2Class' => 'ecuador'),
            "2014-06-16 00:30:00" => array('team1' => 'FRA', 'team2' => 'HON', 'date' => '2014-06-16 00:30:00', 'team1Class' => 'france', 'team2Class' => 'honduras'),
            "2014-06-16 03:30:00" => array('team1' => 'ARG', 'team2' => 'BIH', 'date' => '2014-06-16 03:30:00', 'team1Class' => 'argentina', 'team2Class' => 'bosnia'),
            "2014-06-16 21:30:00" => array('team1' => 'GER', 'team2' => 'POR', 'date' => '2014-06-16 21:30:00', 'team1Class' => 'germany', 'team2Class' => 'portugal'),
            "2014-06-17 00:30:00" => array('team1' => 'IRN', 'team2' => 'NGA', 'date' => '2014-06-17 00:00:00', 'team1Class' => 'iran', 'team2Class' => 'nigeria'),
            "2014-06-17 03:30:00" => array('team1' => 'GHA', 'team2' => 'USA', 'date' => '2014-06-17 03:30:00', 'team1Class' => 'ghana', 'team2Class' => 'usa'),
            "2014-06-17 21:30:00" => array('team1' => 'BEL', 'team2' => 'ALG', 'date' => '2014-06-17 21:30:00', 'team1Class' => 'belgium', 'team2Class' => 'algeria'),
            "2014-06-18 00:30:00" => array('team1' => 'BRA', 'team2' => 'MEX', 'date' => '2014-06-18 00:30:00', 'team1Class' => 'brazil', 'team2Class' => 'mexico'),
            "2014-06-18 03:30:00" => array('team1' => 'RUS', 'team2' => 'KOR', 'date' => '2014-06-17 03:30:00', 'team1Class' => 'russia', 'team2Class' => 'korea'),
            "2014-06-18 21:30:00" => array('team1' => 'AUS', 'team2' => 'NET', 'date' => '2014-06-18 21:30:00', 'team1Class' => 'australia', 'team2Class' => 'netherlands'),
            "2014-06-19 00:30:00" => array('team1' => 'SPA', 'team2' => 'CHI', 'date' => '2014-06-19 00:30:00', 'team1Class' => 'spain', 'team2Class' => 'chile'),
            "2014-06-19 03:30:00" => array('team1' => 'CMR', 'team2' => 'CRO', 'date' => '2014-06-19 03:30:00', 'team1Class' => 'cameroon', 'team2Class' => 'croatia'),
            "2014-06-19 21:30:00" => array('team1' => 'JAP', 'team2' => 'GRE', 'date' => '2014-06-19 21:30:00', 'team1Class' => 'japan', 'team2Class' => 'greece'),
            "2014-06-20 00:30:00" => array('team1' => 'URU', 'team2' => 'ENG', 'date' => '2014-06-20 00:30:00', 'team1Class' => 'uruguay', 'team2Class' => 'england'),
            "2014-06-20 03:30:00" => array('team1' => 'JAP', 'team2' => 'GRE', 'date' => '2014-06-20 03:30:00', 'team1Class' => 'japan', 'team2Class' => 'greece'),
            "2014-06-20 21:30:00" => array('team1' => 'ITA', 'team2' => 'CRC', 'date' => '2014-06-20 21:30:00', 'team1Class' => 'italy', 'team2Class' => 'costa-rica'),
            "2014-06-21 00:30:00" => array('team1' => 'SWI', 'team2' => 'FRA', 'date' => '2014-06-21 00:30:00', 'team1Class' => 'switzerland', 'team2Class' => 'france'),
            "2014-06-21 03:30:00" => array('team1' => 'HON', 'team2' => 'ECU', 'date' => '2014-06-21 03:30:00', 'team1Class' => 'honduras', 'team2Class' => 'ecuador'),
            "2014-06-21 21:30:00" => array('team1' => 'ARG', 'team2' => 'IRN', 'date' => '2014-06-21 21:30:00', 'team1Class' => 'argentina', 'team2Class' => 'iran'),
            "2014-06-22 00:30:00" => array('team1' => 'GER', 'team2' => 'GHA', 'date' => '2014-06-22 00:30:00', 'team1Class' => 'germany', 'team2Class' => 'ghana'),
            "2014-06-22 03:30:00" => array('team1' => 'NGA', 'team2' => 'BIH', 'date' => '2014-06-22 03:30:00', 'team1Class' => 'nigeria', 'team2Class' => 'bosnia'),
            "2014-06-22 21:30:00" => array('team1' => 'BEL', 'team2' => 'RUS', 'date' => '2014-06-22 21:30:00', 'team1Class' => 'belgium', 'team2Class' => 'russia'),
            "2014-06-23 00:30:00" => array('team1' => 'KOR', 'team2' => 'ALG', 'date' => '2014-06-23 00:30:00', 'team1Class' => 'korea', 'team2Class' => 'algeria'),
            "2014-06-23 03:30:00" => array('team1' => 'USA', 'team2' => 'POR', 'date' => '2014-06-23 03:30:00', 'team1Class' => 'usa', 'team2Class' => 'portugal'),
            "2014-06-23 21:30:00" => array('team1' => 'AUS', 'team2' => 'SPA', 'date' => '2014-06-23 21:30:00', 'team1Class' => 'australia', 'team2Class' => 'spain'),
            "2014-06-23 21:30:01" => array('team1' => 'NET', 'team2' => 'CHI', 'date' => '2014-06-23 21:30:00', 'team1Class' => 'netherlands', 'team2Class' => 'chile'),
            "2014-06-24 01:30:00" => array('team1' => 'CMR', 'team2' => 'BRA', 'date' => '2014-06-24 01:30:00', 'team1Class' => 'cameroon', 'team2Class' => 'brazil'),
            "2014-06-24 01:30:01" => array('team1' => 'CRO', 'team2' => 'MEX', 'date' => '2014-06-24 01:30:00', 'team1Class' => 'croatia', 'team2Class' => 'mexico'),
            "2014-06-24 21:30:00" => array('team1' => 'ITA', 'team2' => 'URU', 'date' => '2014-06-24 21:30:00', 'team1Class' => 'italy', 'team2Class' => 'uruguay'),
            "2014-06-24 21:30:01" => array('team1' => 'CRC', 'team2' => 'ENG', 'date' => '2014-06-24 21:30:00', 'team1Class' => 'costa-rica', 'team2Class' => 'england'),
            "2014-06-25 00:30:00" => array('team1' => 'JAP', 'team2' => 'COL', 'date' => '2014-06-25 00:30:00', 'team1Class' => 'japan', 'team2Class' => 'colombia'),
            "2014-06-25 01:30:00" => array('team1' => 'GRE', 'team2' => 'CIV', 'date' => '2014-06-25 01:30:00', 'team1Class' => 'greece', 'team2Class' => 'cote'),
            "2014-06-25 21:30:00" => array('team1' => 'NGA', 'team2' => 'ARG', 'date' => '2014-06-25 21:30:00', 'team1Class' => 'nigeria', 'team2Class' => 'argentina'),
            "2014-06-25 21:30:01" => array('team1' => 'BIH', 'team2' => 'IRN', 'date' => '2014-06-25 21:30:00', 'team1Class' => 'bosnia', 'team2Class' => 'iran'),
            "2014-06-26 00:30:00" => array('team1' => 'HON', 'team2' => 'SWI', 'date' => '2014-06-26 00:30:00', 'team1Class' => 'honduras', 'team2Class' => 'switzerland'),
            "2014-06-26 01:30:00" => array('team1' => 'ECU', 'team2' => 'FRA', 'date' => '2014-06-26 01:30:00', 'team1Class' => 'ecuador', 'team2Class' => 'france'),
            "2014-06-26 21:30:00" => array('team1' => 'HON', 'team2' => 'SWI', 'date' => '2014-06-26 21:30:00', 'team1Class' => 'honduras', 'team2Class' => 'switzerland'),
            "2014-06-26 21:30:01" => array('team1' => 'POR', 'team2' => 'GHA', 'date' => '2014-06-26 21:30:00', 'team1Class' => 'portugal', 'team2Class' => 'ghana'),
            "2014-06-27 01:30:00" => array('team1' => 'ALG', 'team2' => 'RUS', 'date' => '2014-06-27 01:30:00', 'team1Class' => 'algeria', 'team2Class' => 'russia'),
            "2014-06-27 01:30:01" => array('team1' => 'KOR', 'team2' => 'BEL', 'date' => '2014-06-27 01:30:00', 'team1Class' => 'korea', 'team2Class' => 'belgium'),
    );

    if (!$referenceTime) {
        $referenceTime = date('Y-m-d H:i:s');
    }

    $offset = 0;
    foreach ($matchSchedule as $matchTime => $matchInfo) {
        if ($referenceTime < $matchTime) {
            break;
        }
        $offset ++;
    }
    return array_slice($matchSchedule, $offset, 5, true);
}

echo '<pre>';
echo '<h3>Next 5 Matches from NOW</h3>';
print_r(getNextMatches());

$aTestCases = array(
    '2014-06-30 15:23:25',
    '2014-07-05 15:23:25',
);

foreach  ($aTestCases as $time ) {
    echo "<h3>Next 5 Matches from {$time}</h3>";
    print_r(getNextMatches($time));
}