devtoolboxuk\soteria\voku\Resources\Utf7::callback()

Complexity

Conditions	3
Paths	3

Size

Total Lines

22

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	0
CRAP Score	12

Importance

Changes

0

<?php
    private function callback(array $strings)
    {
        $strTmp = base64_decode($strings[1], true);

        if ($strTmp === false) {
            return $strings[0];
        }

        if (rtrim(base64_encode($strTmp), '=') !== rtrim($strings[1], '=')) {
            return $strings[0];
        }

        $string = (string)preg_replace_callback(
            '/^((?:\x00.)*?)((?:[^\x00].)+)/us',
            function ($matches) {
                return $matches[1] . '+' . rtrim(base64_encode($matches[2]), '=') . '-';
            },
            $strTmp
        );

        return (string)preg_replace('/\x00(.)/us', '$1', $string);
    }

}