Code Duplication    Length = 18-18 lines in 2 locations

install/upgrade_run_db_original.php 1 location

@@ 77-94 (lines=18) @@
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    return $res;
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}
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function tableExists($tablename)
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{
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    global $db_link, $database;
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    $res = mysqli_query(
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        $db_link,
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        "SELECT COUNT(*) as count
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        FROM information_schema.tables
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        WHERE table_schema = '".$database."'
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        AND table_name = '$tablename'"
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    );
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    if ($res > 0) {
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        return true;
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    }
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    return false;
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}
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//define pbkdf2 iteration count
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@define('ITCOUNT', '2072');

install/upgrade_ajax.php 1 location

@@ 161-178 (lines=18) @@
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    return $res;
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}
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function tableExists($tablename)
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{
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    global $db_link, $database;
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    $res = mysqli_query(
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        $db_link,
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        "SELECT COUNT(*) as count
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        FROM information_schema.tables
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        WHERE table_schema = '".$database."'
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        AND table_name = '$tablename'"
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    );
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    if ($res > 0) {
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        return true;
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    } else {
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        return false;
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    }
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}
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if (isset($post_type)) {
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    switch ($post_type) {