Online PHP editor | output for ccRYk

@ 2024-10-03T09:11:30Z

<?php

$array = [
    [
        'date' => '2017-12-20',
        'name' => 'test A',
        'kwa' => 'kwa1, kwa2'
    ],
    [
        'date' => '2017-12-20',
        'name' => 'test B',
        'kwa' => ''
    ],
    [
        'date' => '2017-12-21',
        'name' => 'test C',
        'kwa' => 'kwa1'
    ],
    [
        'date' => '2017-12-22',
        'name' => 'test D',
        'kwa' => ''
    ],
    [
        'date' => '2017-12-22',
        'name' => 'test E',
        'kwa' => ''
   ],
];

$result = [];
foreach ($array as $result[$d][] => ['date' => $d]);
var_export($result);

Output for 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.28, 8.4.1 - 8.4.14, 8.5.0: array ( '2017-12-20' => array ( 0 => 0, 1 => 1, ), '2017-12-21' => array ( 0 => 2, ), '2017-12-22' => array ( 0 => 3, 1 => 4, ), )
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.

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