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@ 2013-11-28T14:09:17Z

<?php

$address = '1::1';

                    $parts = explode(':', $address);
                    $len = count($parts);

                    if ($len < 8) {
                        if ($parts[0] === '') {
                            array_splice($parts, 0, 0, array_fill(0, 8 - $len, 0));
                            $parts = array_reverse($parts);
                        } else {
                            $parts = array_reverse($parts);
                            if ($parts[0] === '') {
                                array_splice($parts, 0, 0, array_fill(0, 8 - $len, 0));
                            } else {
                                array_splice($parts, array_search('', $parts), 0, array_fill(0, 8 - $len, 0));
                            }
                        }
                    }

var_dump($parts);

Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 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 - 8.1.27, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6: array(8) { [0]=> string(1) "1" [1]=> int(0) [2]=> int(0) [3]=> int(0) [4]=> int(0) [5]=> int(0) [6]=> string(0) "" [7]=> string(1) "1" }

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