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<?php $array['Top Level']['Level 2: A']['Son of A'] = "item"; $array['Top Level']['Level 2: A']['Daughter of A'] = "item"; $array['Top Level']['Level 2: B'] = "item"; function recurse($array, $parent = null) { $entries = []; foreach ($array as $key => $value) { $temp = [ 'name' => $key, 'parent' => $parent, 'children' => is_array($value) ? recurse($value, $key) : [] ]; if (!$temp['children']) { unset($temp['children']); } $entries[] = $temp; } return $entries; } var_export(recurse($array));
Output for 7.2.0 - 7.2.34, 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 ( 'name' => 'Top Level', 'parent' => NULL, 'children' => array ( 0 => array ( 'name' => 'Level 2: A', 'parent' => 'Top Level', 'children' => array ( 0 => array ( 'name' => 'Son of A', 'parent' => 'Level 2: A', ), 1 => array ( 'name' => 'Daughter of A', 'parent' => 'Level 2: A', ), ), ), 1 => array ( 'name' => 'Level 2: B', 'parent' => 'Top Level', ), ), ), )
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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