唯一号码不显示

时间：2014-04-03 01:13:02

标签： php mysql

我正在尝试为用户显示一些唯一的号码。当人们提交询问时，他们会得到这个号码（以便稍后审查）。

index.php（表格） - ＆gt; submit.php（检查数据库） - ＆gt; thankyou.php（向用户显示唯一编号）

它运行正常，查询存储在数据库中，但我无法显示该号码。

Undefined index: semak in C:\wamp\www\FORM\thankyou.php on line 10

$semak=$_POST["semak"];

Undefined index: semak in C:\wamp\www\FORM\thankyou.php on line 14

$sql = "SELECT semak FROM pemohon WHERE semak='".$_POST['semak']."'";


UPDATE: the errors are now gone. but the number still isnt showing :(

的index.php 

<span class="required_notification"><div style="position: absolute; right: -0px; top: -0px;">
<img src="img/logojata.jpg" alt="kpm" style="float:right">
<div style="position: absolute; left: 80px; top: -10px;"><br><br><br><br>* Denotes Required Field</span>
    </li>
    <li>
        <label for="name">Nama Pemohon:</label>
        <input type="text" name="name" required />
    </li>
    <li>
        <label for="jawatan">Jawatan:</label>
        <input type="text" name="jawatan" />
    </li>
    <li>
        <label for="unit">Unit/Jabatan/Bahagian:</label>
        <input type="text" name="unit" required />
    </li>
    <li>
        <label for="kementerian">Kementerian/Institusi/Agensi:</label>
        <input type="text" name="kementerian" required />
    </li>
    <li>
        <label for="telefon">No. Telefon:</label>
        <input type="number" name="telefon" placeholder="eg: 012-345-6789" required />
    </li>
    <li>
        <label for="faks">No. Faks:</label>
        <input type="number" name="faks" placeholder="eg: 03-12345678" />
    </li>
    <li>
        <label for="email">E-mail:</label>
        <input type="email" name="email" placeholder="name@something.com" required />
    <span class="form_hint">proper format<script type="text/javascript">
/* <![CDATA[ */
(function(){try{var s,a,i,j,r,c,l,b=document.getElementsByTagName("script");l=b[b.length-1].previousSibling;a=l.getAttribute('data-cfemail');if(a){s='';r=parseInt(a.substr(0,2),16);for(j=2;a.length-j;j+=2){c=parseInt(a.substr(j,2),16)^r;s+=String.fromCharCode(c);}s=document.createTextNode(s);l.parentNode.replaceChild(s,l);}}catch(e){}})();
/* ]]> */
</script></span>
</li>
    <li>
        <label for="data">Data/Laporan Yang Dipohon:</label>
        <input name="data" type="text" required value="">
    </li>
    <li>
        <label for="tujuan">Tujuan:</label>
        <input type="text" name="tujuan" required/>
    </li>
    <input type="hidden" name="semak" value="<?php echo uniqid(); ?>" id="semak">
    <li>
    <button class="submit" type="submit">Submit</button>
    </li>

submit.php 

<?php

//debug mode
error_reporting(E_ALL);
ini_set('display_errors', '1');

//to show some error is smthng went wrong
$errors = array();

include('config.php');

//will run if user did submit the form
if (!empty($_POST)){

//connect sql server:
    $name = $_POST['name'];
    $jawatan = $_POST['jawatan'];
    $unit = $_POST['unit'];
    $kementerian = $_POST['kementerian'];
    $telefon = $_POST['telefon'];
    $faks = $_POST['faks'];
    $email = $_POST['email'];
    $data = $_POST['data'];
    $tujuan = $_POST['tujuan'];
    $semak = $_POST['semak'];
    $tindakan = $_POST['tindakan'];
    $agihan = $_POST['agihan'];


//no error til here
if (empty($error)){

//prevent SQL injection
$name = mysql_real_escape_string($name);    
$jawatan = mysql_real_escape_string($jawatan);
$unit = mysql_real_escape_string($unit);
$kementerian = mysql_real_escape_string($kementerian);
$telefon = mysql_real_escape_string($telefon);
$faks = mysql_real_escape_string($faks);
$email = mysql_real_escape_string($email);
$data = mysql_real_escape_string($data);
$tujuan = mysql_real_escape_string($tujuan);
$semak = mysql_real_escape_string($semak);
$tindakan = mysql_real_escape_string($tindakan);
$agihan = mysql_real_escape_string($agihan);

}

//try insert value
$query = "INSERT INTO pemohon
    (name,jawatan,unit,kementerian,telefon,faks,email,data,tujuan,semak)
    VALUES ('$name', '$jawatan', '$unit', '$kementerian', '$telefon', '$faks', '$email', '$data', '$tujuan', '$semak')";

//try
if (!mysql_query($query)){
    //
    //die(mysql_error());
    $errors[] = "Can't insert the values";
    }
else {
    //on success
    header("Location:thankyou.php?semak=$row[semak];");
    exit();

}

}   

?>

thankyou.php 

<html>
<head>
    <meta charset="utf-8">
    <title>terima kasih</title>
    <link rel="stylesheet" media="screen" href="css/stylesphp.css" >
</head>
<body bgcolor="#13b4ff">
<?php

$semak=$_GET["semak"];

include('config.php');

$sql = "SELECT semak FROM pemohon WHERE semak='".$_GET['semak']."'";

$result = mysql_query($sql);

while($row=mysql_fetch_array($result))
{

    $semak = $row['semak'];
}

if ($semak == $semak){
?>

        <div class="boxed";>
        <div id="thankyou" style= "text-align:center; font-size:50px;">THANK YOU</div><br>
        <div style="text-align:center;">Your request has been sent.</div><br>
        &nbsp;Please keep this code for the purpose of reviewing.<br>
        &nbsp;Number: <?php echo "$semak"; ?>
        <p>&nbsp;Kembali ke <a class="a" href="index.php" target="_self">back.</a>
        </div>

<?php
}
else
{
}
?> 

</body>
</html>

thankyou.php页面正在运行但数字部分留空并出现错误。我不明白为什么会这样？

2 个答案:

答案 0 :(得分：1)

在thankyou.php

中使用$_GET代替$_POST 
 $semak=$_GET["semak"];

：）

您没有将数据发布到thankyou.php，这就是$_POST为空的原因。从我看到你通过网址传递数据。要提取数据，请使用$_GET变量。

答案 1 :(得分：1)

修改

我在下面测试了我的代码并且成功了。

但是，您可能会遇到以下错误消息：

  

注意：使用未定义的常量semak - 假设＆＃39; semak＆＃39;在....

这将是由于这一行:(我以为我会提前通知你）

header("Location:thankyou.php?semak=$row[semak];");

另一个注释：如果有重复的条目，您可能需要制作semak列UNIQUE。

尝试使用sessions，它比POST更易于在多个页面中传输。

在整个代码中查看评论。

重要的旁注：

在运行此代码之前，请复制您的工作代码并将其放在另一个文件夹中。

<强>的index.php 

<?php
session_start();

$_SESSION['semak_session'] = uniqid(); // assign the session to uniqid()
$semak = $_SESSION['semak_session']; // assign $semak from session variable

// you can comment out the following on success, or delete it
echo $semak;
// if you view source, you will see the same number
// appear as <input type="hidden" name="semak" value="633ccd4136r5fb1" id="semak">
// as an example

?>

<span class="required_notification"><div style="position: absolute; right: -0px; top: -0px;">
<img src="img/logojata.jpg" alt="kpm" style="float:right">
<div style="position: absolute; left: 80px; top: -10px;"><br><br><br><br>* Denotes Required Field</span>
    </li>
    <li>
        <label for="name">Nama Pemohon:</label>
        <input type="text" name="name" required />
    </li>
    <li>
        <label for="jawatan">Jawatan:</label>
        <input type="text" name="jawatan" />
    </li>
    <li>
        <label for="unit">Unit/Jabatan/Bahagian:</label>
        <input type="text" name="unit" required />
    </li>
    <li>
        <label for="kementerian">Kementerian/Institusi/Agensi:</label>
        <input type="text" name="kementerian" required />
    </li>
    <li>
        <label for="telefon">No. Telefon:</label>
        <input type="number" name="telefon" placeholder="eg: 012-345-6789" required />
    </li>
    <li>
        <label for="faks">No. Faks:</label>
        <input type="number" name="faks" placeholder="eg: 03-12345678" />
    </li>
    <li>
        <label for="email">E-mail:</label>
        <input type="email" name="email" placeholder="name@something.com" required />
    <span class="form_hint">proper format<script type="text/javascript">
/* <![CDATA[ */
(function(){try{var s,a,i,j,r,c,l,b=document.getElementsByTagName("script");l=b[b.length-1].previousSibling;a=l.getAttribute('data-cfemail');if(a){s='';r=parseInt(a.substr(0,2),16);for(j=2;a.length-j;j+=2){c=parseInt(a.substr(j,2),16)^r;s+=String.fromCharCode(c);}s=document.createTextNode(s);l.parentNode.replaceChild(s,l);}}catch(e){}})();
/* ]]> */
</script></span>
</li>
    <li>
        <label for="data">Data/Laporan Yang Dipohon:</label>
        <input name="data" type="text" required value="">
    </li>
    <li>
        <label for="tujuan">Tujuan:</label>
        <input type="text" name="tujuan" required/>
    </li>
    <input type="hidden" name="semak" value="<?php echo $semak; ?>" id="semak">
    <li>
    <button class="submit" type="submit">Submit</button>
    </li>

<强> submit.php 

<?php
//debug mode
error_reporting(E_ALL);
ini_set('display_errors', '1');

session_start();

if(isset($_SESSION['semak_session']) && !empty($_SESSION['semak_session'])){

echo $_SESSION['semak_session']; // can be commented out after success

$semak = $_SESSION['semak_session'];

echo "<hr>"; // can be commented out after success

echo $semak; // can be commented out after success

}

//to show some error is smthng went wrong
$errors = array();

include('config.php');

//will run if user did submit the form
if (!empty($_POST)){

//connect sql server:
    $name = $_POST['name'];
    $jawatan = $_POST['jawatan'];
    $unit = $_POST['unit'];
    $kementerian = $_POST['kementerian'];
    $telefon = $_POST['telefon'];
    $faks = $_POST['faks'];
    $email = $_POST['email'];
    $data = $_POST['data'];
    $tujuan = $_POST['tujuan'];

    // $semak = $_POST['semak']; // commenting out for now. May not be needed.

    $tindakan = $_POST['tindakan'];
    $agihan = $_POST['agihan'];


//no error til here
if (empty($error)){

//prevent SQL injection
$name = mysql_real_escape_string($name);    
$jawatan = mysql_real_escape_string($jawatan);
$unit = mysql_real_escape_string($unit);
$kementerian = mysql_real_escape_string($kementerian);
$telefon = mysql_real_escape_string($telefon);
$faks = mysql_real_escape_string($faks);
$email = mysql_real_escape_string($email);
$data = mysql_real_escape_string($data);
$tujuan = mysql_real_escape_string($tujuan);

// $semak = mysql_real_escape_string($semak); // leaving this out for now

$tindakan = mysql_real_escape_string($tindakan);
$agihan = mysql_real_escape_string($agihan);

}

//try insert value
$query = "INSERT INTO pemohon
    (name,jawatan,unit,kementerian,telefon,faks,email,data,tujuan,semak)
    VALUES ('$name', '$jawatan', '$unit', '$kementerian', '$telefon', '$faks', '$email', '$data', '$tujuan', '$semak')";

//try
if (!mysql_query($query)){
    //
    //die(mysql_error());
    $errors[] = "Can't insert the values";
    }
else {
    //on success
    header("Location:thankyou.php?semak=$row[semak];");
    exit();

}

}

?>

<强> thankyou.php 

<?php
//debug mode
error_reporting(E_ALL);
ini_set('display_errors', '1');

session_start();

if(isset($_SESSION['semak_session']) && !empty($_SESSION['semak_session'])){

echo $_SESSION['semak_session']; // can be commented out after success

$semak = $_SESSION['semak_session'];

echo "<hr>"; // can be commented out after success

echo $semak; // can be commented out after success

} // added in EDIT

?>

<html>
<head>
    <meta charset="utf-8">
    <title>terima kasih</title>
    <link rel="stylesheet" media="screen" href="css/stylesphp.css" >
</head>
<body bgcolor="#13b4ff">
<?php

include('config.php');

$sql = "SELECT semak FROM pemohon WHERE semak='$semak'";

$result = mysql_query($sql);

while($row=mysql_fetch_array($result))
{

    $semak = $row['semak'];
}

if ($semak == $semak){
?>

        <div class="boxed";>
        <div id="thankyou" style= "text-align:center; font-size:50px;">THANK YOU</div><br>
        <div style="text-align:center;">Your request has been sent.</div><br>
        &nbsp;Please keep this code for the purpose of reviewing.<br>
        &nbsp;Number: <?php echo "$semak"; ?>
        <p>&nbsp;Kembali ke <a class="a" href="index.php" target="_self">back.</a>
        </div>

<?php
}
else
{
}
?> 

</body>
</html>
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