Online PHP editor | output for humOI

@ 2019-08-22T11:32:24Z

<?php
$array = [
    ['skill_name' => 'PHP', 'feed_id' => 100],
    ['skill_name' => 'CSS', 'feed_id' => 105],
    ['skill_name' => 'Php', 'feed_id' => 110],
    ['skill_name' => 'Php', 'feed_id' => 111],
    ['skill_name' => 'CSS', 'feed_id' => 112],
    ['skill_name' => 'Javascript', 'feed_id' => 114]
];

foreach ($array as $row) {
    $upperSkill = strtoupper($row['skill_name']);
    if (!isset($result[$upperSkill])) {
        $result[$upperSkill] = $row + ['count' => 1];
    } else {
        $result[$upperSkill]['feed_id'] .= ",{$row['feed_id']}";
        ++$result[$upperSkill]['count'];
    }
}
var_export(array_values($result));

Output for 7.1.25 - 7.1.31, 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 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.28, 8.4.1 - 8.4.14, 8.4.16, 8.5.0 - 8.5.1: array ( 0 => array ( 'skill_name' => 'PHP', 'feed_id' => '100,110,111', 'count' => 3, ), 1 => array ( 'skill_name' => 'CSS', 'feed_id' => '105,112', 'count' => 2, ), 2 => array ( 'skill_name' => 'Javascript', 'feed_id' => 114, 'count' => 1, ), )
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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