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Home php教程 php手冊 php如何更好更有效的實(shí)現(xiàn)-----用戶注冊頁面

php如何更好更有效的實(shí)現(xiàn)-----用戶注冊頁面

Jun 21, 2016 am 09:15 AM
gt lt nbsp session

頁面|用戶注冊

當(dāng)程序員的人應(yīng)該都去過論壇,都在應(yīng)該注冊過論壇的用戶吧.論壇上用戶注冊的步驟分為幾部:

第一步 \ 協(xié)議頁面, 只有同意這個(gè)協(xié)議才可以進(jìn)入下一步注冊
第二步 \ 表單輸入頁面, 輸入用戶的注冊信息
第三步 \ 注冊結(jié)果頁面,提示注冊成功


在實(shí)際工作中,如果我們要開發(fā)實(shí)現(xiàn)這種注冊頁面,要注意很多的問題:

1\用戶跳過"第一步",沒有閱讀協(xié)議頁面,直接通過第二步的url直接訪問表單輸入頁面.
2\用戶在完成"第三步"的時(shí)候,不停的刷新頁面,這個(gè)用戶輸入的信息就在每刷新一次的時(shí)候被重新保存一次
3\用戶在完成"第三步"的時(shí)候,點(diǎn)擊后退,修改某個(gè)信息后,再次提交.


類似這種得表單在web開發(fā)的過程中會(huì)經(jīng)常碰到, 對于第3點(diǎn), 幾乎目前所有的論壇中都有這個(gè)問題存在,;第2點(diǎn)在一些留言板中經(jīng)常遇到, 但是怎么作才可以避免上述的問題呢?


今天老板讓我?guī)蛣e人做個(gè)文件上傳的東西, 允許任何人來上傳符合要求文件, 頁面模板已經(jīng)設(shè)計(jì)好了, 就是和用戶注冊的步驟是一樣的, 分三步驟. 以前做過類似的東西, 但是防刷新機(jī)制設(shè)計(jì)的不是很好. 反正今天沒事做, 就稍微研究一下, 看看如何實(shí)現(xiàn)代碼可以避免上述的問題.
-----------------------------------------------
-----------------------------------------------
下面是個(gè)人設(shè)計(jì)的實(shí)現(xiàn)代碼,可以避免上述的問題. 通過瀏覽器訪問register.php,在輸入"用戶名"和"地址"的時(shí)候, 兩個(gè)都不能為空,為空的時(shí)候,會(huì)提示錯(cuò)誤信息; 當(dāng)兩個(gè)輸入框都不為空的時(shí)候, 可以提交成功,提交成功以后,你再進(jìn)行刷新和后退,看看是不是達(dá)到了效果了.


文件一: config.inc.php

//開始session
session_start();

//設(shè)置不進(jìn)行本地緩存
header('Expires: '.date('D,d M Y H:i:s',mktime(0,0,0,1,1,2000)).' GMT');
header('Last-Modified:'.gmdate('D,d M Y H:i:s').' GMT');
header('Cache-control: private, no-cache,must-revalidate');
header('Pragma: no-cache');

?>


文件二: register.php

require_once "config.inc.php";

if(isset($_SESSION[step2]) && isset($_POST[step2])) {
??? //注冊的最后一步
??? $errorStr = formStep3();
??? if($errorStr!=null){
??????? require_once('step2.html');
??? }else{
??????? require_once('step3.html');
??????? unset($_SESSION[step2], $_SESSION[step1]);
??? }

} else if(isset($_SESSION[step1]) && isset($_GET[step1])) {
??? //注冊的第二步
??? require_once('step2.html');
??? $_SESSION[step2] = 1;

} else {
??? //注冊的第一步
??? require_once('step1.html');
??? $_SESSION[step1] = 1;

}

//判斷用戶提交的表單的數(shù)據(jù)的 準(zhǔn)確性 和 保存提交數(shù)據(jù) 的函數(shù)
function formStep3(){
??? $errors = array();
??? $errorStr = null;

??? if(strlen($_POST[username])??? if(strlen($_POST[address])

??? if(sizeof($errors)>0){
?????? $errorStr .= "
";
?????? $errorStr .= "信息輸入錯(cuò)誤:";
?????? foreach($errors as $error)
?????????????? $errorStr .= "

  • $error
  • ";
    ?????? $errorStr .= "


    ";
    ??? }else{
    ??????? //用來保存用戶輸入的信息到數(shù)據(jù)庫或其他地方
    ??????? //這個(gè)保存的過程就略了
    ??? }
    ??? return $errorStr;
    }

    ?>


    模板文件一: step1.html

    步驟一 閱讀《章程》


    gt;




    模板文件二: step2.html

    步驟二 提交登記表


    =$errorStr ?>

    輸入登記名:
    ?
    輸入地址:



    模板文件三: step3.html

    步驟三 提交成功



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