Code Duplication    Length = 7-7 lines in 2 locations

src/vendor/symfony/polyfill-mbstring/Mbstring.php 2 locations

@@ 613-619 (lines=7) @@
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        return (string) iconv_substr($s, $start, $length, $encoding);
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    }
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    public static function mb_stripos($haystack, $needle, $offset = 0, $encoding = null)
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    {
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        $haystack = self::mb_convert_case($haystack, self::MB_CASE_FOLD, $encoding);
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        $needle = self::mb_convert_case($needle, self::MB_CASE_FOLD, $encoding);
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        return self::mb_strpos($haystack, $needle, $offset, $encoding);
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    }
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    public static function mb_stristr($haystack, $needle, $part = false, $encoding = null)
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    {
@@ 648-654 (lines=7) @@
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        return self::getSubpart($pos, $part, $haystack, $encoding);
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    }
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    public static function mb_strripos($haystack, $needle, $offset = 0, $encoding = null)
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    {
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        $haystack = self::mb_convert_case($haystack, self::MB_CASE_FOLD, $encoding);
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        $needle = self::mb_convert_case($needle, self::MB_CASE_FOLD, $encoding);
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        return self::mb_strrpos($haystack, $needle, $offset, $encoding);
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    }
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    public static function mb_strstr($haystack, $needle, $part = false, $encoding = null)
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    {