3v4l.org

run code in 300+ PHP versions simultaneously

@ 2021-09-18T12:46:15Z

<?php

$openTimeslots = ['02-09-2021' => [ '8:00-10:00', '16:00-19:00'],
                  '03-09-2021' => [ '7:00-10:00', '16:15-19:00', 
                                   '14:00-16:00', '13:00-14:15'],
                  '04-09-2021' => [ '7:15-10:00', '15:15-18:15']];

$common = array_map(fn($timeRange) => explode('-', $timeRange), array_shift($openTimeslots));

foreach ($openTimeslots as $slots) {
    foreach ($slots as $slot) {
        [$start, $end] = explode('-', $slot);
        foreach ($common as [&$commonStart, &$commonEnd]) {
            if ($start >= $commonStart && $start < $commonEnd) {
                $commonStart = $start;
            }
            if ($end > $commonStart && $end <= $commonEnd) {
                $commonEnd = $end;
            }
        }
    }
}
var_export(
    array_map(
        fn($subarray) => implode('-', $subarray),
        $common
    )
);

Output for 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.4, 8.3.6 - 8.3.26, 8.4.1 - 8.4.13: array ( 0 => '8:00-10:00', 1 => '16:15-18:15', )
Output for 8.3.5: Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 array ( 0 => '8:00-10:00', 1 => '16:15-18:15', )
Output for 7.3.0 - 7.3.33: Parse error: syntax error, unexpected '=>' (T_DOUBLE_ARROW), expecting ')' in /in/VADBi on line 8
Process exited with code 255.

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