Online PHP editor | output for o5K0s

@ 2018-10-14T13:22:36Z

<?php
$arr = [
    ['id' => '340', 'days' => '1', 'start_date' => '2018-10-12 00:00:00', 'end_date' => '2018-10-13 00:00:00'],
    ['id' => '346', 'days' => '2', 'start_date' => '2018-10-12 00:00:00', 'end_date' => '2018-10-14 00:00:00'],
    ['id' => '339', 'days' => '3', 'start_date' => '2018-10-12 00:00:00', 'end_date' => '2018-10-15 00:00:00'],
    ['id' => '302', 'days' => '4', 'start_date' => '2018-10-12 00:00:00', 'end_date' => '2018-10-16 00:00:00'],
    ['id' => '308', 'days' => '5', 'start_date' => '2018-10-12 00:00:00', 'end_date' => '2018-10-17 00:00:00'],
    ['id' => '354', 'days' => '1', 'start_date' => '2018-10-13 00:00:00', 'end_date' => '2018-10-14 00:00:00'],
    ['id' => '369', 'days' => '1', 'start_date' => '2018-10-14 00:00:00', 'end_date' => '2018-10-15 00:00:00']
];

usort($arr, function($a, $b){ return $a['days'] <=> $b['days'];});
var_export(array_values(array_column($arr, null, 'start_date')));

Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.14, 8.4.16 - 8.4.18, 8.5.0 - 8.5.3: array ( 0 => array ( 'id' => '308', 'days' => '5', 'start_date' => '2018-10-12 00:00:00', 'end_date' => '2018-10-17 00:00:00', ), 1 => array ( 'id' => '354', 'days' => '1', 'start_date' => '2018-10-13 00:00:00', 'end_date' => '2018-10-14 00:00:00', ), 2 => array ( 'id' => '369', 'days' => '1', 'start_date' => '2018-10-14 00:00:00', 'end_date' => '2018-10-15 00:00:00', ), )
Output for 8.4.15: /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libm.so.6: version `GLIBC_2.35' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.34' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15)
Process exited with code 1.
Output for 5.6.0 - 5.6.40: Parse error: syntax error, unexpected '>' in /in/o5K0s on line 12
Process exited with code 255.

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