Online PHP editor | output for kWZUW

@ 2019-11-24T11:41:58Z

<?php
$array = ['foo' => ['bar' => 'lol', 'asdf' => ['rofl', ['haha' => 'lmao'], 'lawl']], ['hehe' => 'haha']];

function getLeafsWithKeys(array $array, array $keys = []): array
{
  $result = [];
  foreach ($array as $key => $value) {
    $new_keys = is_numeric($key) ? $keys : array_merge($keys, [$key]);
    if (is_array($value)) {
      $result = array_merge([], ...[$result, getLeafsWithKeys($value, $new_keys)]);
    }
    else {
      $result[implode(' > ', $new_keys)][] = $value;
    }
  }
  return $result;
}

print_r(getLeafsWithKeys($array));

Output for 7.1.25 - 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 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.27, 8.4.1 - 8.4.14, 8.5.0: Array ( [foo > bar] => Array ( [0] => lol ) [foo > asdf] => Array ( [0] => rofl [1] => lawl ) [foo > asdf > haha] => Array ( [0] => lmao ) [hehe] => Array ( [0] => haha ) )
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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