脚本执行后如何保存用户在表单页面中输入的数据?
Posted
技术标签:
【中文标题】脚本执行后如何保存用户在表单页面中输入的数据?【英文标题】:how to save the data that the user input in form page after the script executed? 【发布时间】:2013-12-26 14:39:53 【问题描述】:我可以知道是否可以从用户之前输入的表单中保存数据?
这是表格文件:
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="content-type" content="text/html" />
<title>Data</title>
<style type="text/css">
input
background-color: #999;
border-style: solid;
border-color: #999;
border: 0px 4px 0px 4px;
padding: 3px 6px 3px 6px;
margin: 10px 0;
input:focus
border-style: solid;
border-color: black;
</style>
</head>
<body>
<form action="count.php" method="post" action="post">
Name: <input type="text" name="customername" /><br />
DOB: <input type="text" name="date" /> <input type="text" name="month" /> <input type="text" name="year" /><br />
First Row: <input type="text" name="rowone" /><br />
Second Row: <input type="text" name="rowtwo" /><br />
Third Row: <input type="text" name="rowthree" /><br />
<input type="submit" value="Go" />
</form>
</body>
</html>
这里是执行用户输入的表单数据的php。
<?php
$cname = $_POST['customername'];
$dob_date = $_POST['date'];
$dob_month = $_POST['month'];
$dob_year = $_POST['year'];
$year = gmdate("Y");
$month = gmdate("m");
$day = gmdate("d");
$age = $year - $dob_year; // $age calculates the user's age determined by only the year
if ($month < $dob_month) // this checks if the current month is before the user's month of birth
$age = $age - 1;
else if (
$month == $dob_month && $day >= $dob_date) // this checks if the current month is the same as the user's month of birth and then checks if it is the user's birthday or if it is after it
$age = $age;
else if ($month == $dob_month && $day < $dob_date) //this checks if the current month is the user's month of birth and checks if it before the user's birthday
$age = $age - 1;
//add all initial data into an matrix variable for easier access to them later
//To access rowone use $rows[0][0], rowtwo $rows[1][0] ect.
//The matrix is an array which contains multiple array. eg. 2-dimensional arrays
//To get all the variables with $r1X simply retrieve the first array of the matrix eg $rows[0]
$rows = array(array($_POST['rowone']), array($_POST['rowtwo']), array($_POST['rowthree']), array());
//Similarities between row1 and row2 made me incoporate modulo value as an argument.
function incmod($a, $m)
return ($a % $m) + 1;
//Population each row, with $populationCount number of elements, where each element is added with incmod(X, $mod)
function populateRow($rowId, $populationCount, $mod)
//The global keyword is needed in order for the function to access the global variable.
global $rows;
$row = $rows[$rowId];
while (sizeof($row) < $populationCount)
$rowInd = sizeof($row) - 1;
$m = incmod($row[$rowInd], $mod);
array_push($row, $m);
//Due to how php works with variables and references we need to set the row back into the global variable.
$rows[$rowId] = $row;
//This function makes sure that the values allways are between 1 and 12.
function bindToRange($v)
if ($v == 0)
return 1;
return ($v - 1) % 12 + 1;
//Population the first three rows
populateRow(0, 7, 7);
populateRow(1, 12, 12);
populateRow(2, 12, 12);
//Creating the forth row by nested forloops.
//The first loop iterates over the entries in a row (in your example this would be the letters e.g r1a r1b ect)
//The second (inner) loop iterates of the rows (in you example this would be the number you had in your variables.)
//The sum over each of the three rows are added, then bound to 1-12 range, before being added to the forth row.
for ($cId = 0; $cId < 7; $cId++)
$sum = 0;
for ($rId = 0; $rId < 3; $rId++)
$sum += $rows[$rId][$cId];
array_push($rows[3], bindToRange($sum));
//Same as above, but for the last two remaining values. Should give a total of nine entries in the forth row.
for ($cId = 7; $cId < 12; $cId++)
$sum = 0;
for ($rId = 1; $rId < 3; $rId++)
$sum += $rows[$rId][$cId];
array_push($rows[3], bindToRange($sum));
function lower_than_2($var)
return ($var > 1);
$cssClassName = "match";
// array_count_values will count how many times each value is in the array
$cssBase = array_count_values($rows[3]);
// remove from array values that are lower than 2
$cssBase = array_filter($cssBase, "lower_than_2");
$cssNumber = array();
$cssCounter = 1;
// make $cssNumber be a mirror of $cssBase (same keys), but with serial values
foreach ($cssBase as $key => $value)
$cssNumber[$key] = $cssCounter;
$cssCounter++;
unset($cssCounter);
// ------------------------------------------------
?>
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="content-type" content="text/html" />
<title>Result</title>
<link rel="stylesheet" type="text/css" href="./css/style.css" />
</head>
<body>
Customer Name: <?php echo $cname; ?><br />
DOB: <?php echo $dob_date; ?> / <?php echo $dob_month; ?> / <?php echo $dob_year; ?><br />
<b><?php echo $age; ?></b> Years Old
<table>
<?php
//Instead of listing up (hard-coded) I've used nested forloops to generate the html.
//The loops are similar to the ones above, but use sizeof keyword to figure out how many iterations it needs.
$lines = sizeof($rows)+1; // $rows have 4 rows, we will need 1 more
for ($rId = 0; $rId < $lines; $rId++)
echo "<tr>\n";
if($rId < 3)
$row = $rows[$rId];
$rowSize = sizeof($row);
for ($cId = 0; $cId < $rowSize; $cId++)
echo "<td>" . $row[$cId] . "</td>\n";
else if($rId == 3)
$row = $rows[$rId];
$rowSize = sizeof($row);
for ($cId = 0; $cId < $rowSize; $cId++)
echo "<td"; // open td
// if the value is in cssBase array, we will apply a css class
if(array_key_exists($row[$cId], $cssBase))
echo ' class="'. $cssClassName . $cssNumber[$row[$cId]] .'"';
echo ">"; // close td
echo $row[$cId];
echo "</td>\n";
else if($rId == 4)
for ($cId = 0; $cId < 12; $cId++)
if($cId == (($age-1)%12))
echo '<td>'. "$age Years Old" .'</td>'."\n";
else
echo "<td></td>\n";
echo "</tr>\n";
// ------------------------------------------------
?>
</table><br /><br />
<a href="./" target="_blank" title="Calculate Again">Calculate Again</a>
</body>
</html>
是否可以在 count.php 页面上添加一个保存按钮,并且该值将是用户在表单页面中之前键入的值。并且保存按钮将回显“数据已保存”,或者如果存在,它将在同一页面中回显“数据已存在”。如果是,我需要使用什么方法?当我搜索谷歌时,我是全新的,我找不到我需要的确切答案。我已经在 mysql 中创建了表来存储数据。
我要存储的数据是出生日期、第一行、第二行和第三行。 在mysql中创建表,dob为日期,rowone,rowtwo和rowthree为varchar(255),id为int(11)。
这是我的 insertdata.php
<?php
$dbhost = "localhost";
$dbuser = "root";
$dbpass = "";
$dbname = "mama";
class dob
public function set_dob($dob_date, $dob_month, $dob_year)
$this->dob = $dob_date.'/'.$dob_month.'/'.$dob_year;
$con=mysqli_connect($dbhost,$dbuser,$dbpass,$dbname);
$sql="INSERT INTO profile (dob,rowone,rowtwo,rowthree) VALUES ('$_POST[dob]','$_POST[rowone]','$_POST[rowtwo]','$_POST[rowthree]')";
if (!mysqli_query($con,$sql))
die('Error: ' . mysqli_error($con));
echo "1 record added";
/* close connection */
$mysqli->close();
?>
并显示如下错误: 注意:未定义索引:第 18 行 C:\xampp\htdocs\mama\inc\insertdata.php 中的 dob
注意:未定义索引:第 18 行 C:\xampp\htdocs\mama\inc\insertdata.php 中的 rowone
注意:未定义索引:第 18 行 C:\xampp\htdocs\mama\inc\insertdata.php 中的 rowtwo
注意:未定义的索引:第 18 行 C:\xampp\htdocs\mama\inc\insertdata.php 中的 rowthree 添加了 1 条记录 注意:未定义变量:第 27 行 C:\xampp\htdocs\mama\inc\insertdata.php 中的 mysqli
致命错误:在第 27 行调用 C:\xampp\htdocs\mama\inc\insertdata.php 中非对象的成员函数 close()
【问题讨论】:
【参考方案1】:要存储从你的视图页面发送的数据,我认为你需要先在你的count.php中建立你的应用程序和你的数据库MySQL之间的连接,然后创建一个方法来存储你的数据。
您可能想查看此链接:
http://www.w3schools.com/php/php_mysql_insert.asp
希望对你有帮助
【讨论】:
【参考方案2】:有很多方法可以做到这一点...使用可以使用 AJAX 调用进行验证的客户端库(jQuery、AngularJS、DOJO...等),或者如果您想将纯 html 与 php 一起使用,您可以使用类似的东西:
<form action="count.php" method="post" action="post">
Name: <input type="text" name="customername" value="<?php echo $prevCName; ?>" /><br />
DOB: <input type="text" name="date" value="<?php echo $prevDate; ?>" /> <input type="text" name="month" value="<?php echo $prevMonth; ?>" /> <input type="text" name="year" value="<?php echo $prevYear; ?>" /><br />
First Row: <input type="text" name="rowone" value="<?php echo $prevROne; ?>" /><br />
Second Row: <input type="text" name="rowtwo" value="<?php echo $prevRTwo; ?>" /><br />
Third Row: <input type="text" name="rowthree" value="<?php echo $prevRThree; ?>" /><br />
<input type="submit" value="Go" />
</form>
这个表单文件必须是一个 php 文件,并且你应该确保之前的值被保存在......在 $_SESSION 或......在以前的文件中使用包含......需要......等等。
【讨论】:
但是我如何用我当前的代码做到这一点?我有点新,卡在这里,一切都设置好只需要保存在数据库中【参考方案3】:最后你只想做以下事情:
$con=mysqli_connect($host,$user,$password,$db);
$sql = "INSERT INTO tablename (dob,rowone,rowtwo,rowthree)
VALUES (".$_POST['customername'].",".$_POST['date'].",".$_POST['month'].",".$_POST['year'].");"
mysqli_query($con,$sql);
我在我的示例中使用 mysqli。更好的方法当然是 PDO:http://tw1.php.net/manual/en/book.pdo.php
最终,您当然会需要安全性,因此您将使用准备好的语句:http://php.net/manual/en/pdo.prepared-statements.php
【讨论】:
我添加了错误代码,介意看看我哪里出错了?但没有数据添加到数据库中 应该是:$sql="INSERT INTO profile (dob,rowone,rowtwo,rowthree) VALUES ($_POST[dob],$_POST[rowone],$_POST[rowtwo],$_POST[rowthree])";
或 $sql="INSERT INTO profile (dob,rowone,rowtwo,rowthree) VALUES (". $_POST[dob].",".$_POST[rowone].",".$_POST[rowtwo].",".$_POST[rowthree].")";
假设 $_POST[rowone]
存在。不确定这是您要使用的变量还是应该是$_POST['rowone']
我在上一条评论中打错了字。您正在尝试在 $_POST[]
变量中获取第一个项目。例如,虽然您想要键为“rowone”的元素。您在 $_POST['rowone']
等变量中缺少撇号。【参考方案4】:
也许你可以通过使用 find('first') 或 find('all') 得到你想要的。
$ex = $this->find('first' , array(
'condition' => array ('model_name.id' => 22 //specific id
)));
您可以从具有特定位置 (id) 的表中获取任何值。 更清楚地说,例如:第 i 行第 j 列的元素。
【讨论】:
【参考方案5】:查看错误堆栈跟踪,您的 php 代码中有 2 个错误:
-
第 18 行:您没有使用字符串来访问 $_POST 数据。使用 $_POST['rowone'], $_POST['rowtwo']... 代替 $_POST[rowone], $_POST[rowtwo]...
第 27 行:当您使用程序 mysqli 时,要关闭连接,您必须使用 mysqli_close($con) 而不是 $mysqli->close()
我会这样做:
try
// Create connection
$conn = new mysqli($dbhost, $dbuser, $dbpass, $dbname);
// Check connection
if ($conn->connect_error)
die("Connection failed: " . $conn->connect_error);
$insertSQL = "INSERT INTO profile (dob, rowone, rowtwo, rowthree) VALUES (?, ?, ?, ?)";
$stmt = $conn->prepare($insertSql);
$stmt->bind_param("ssss", $_POST[dob], $_POST[rowone], $_POST[rowtwo], $_POST[rowthree]); // the four "s" are used to indicate the 4 strings to be set in the parametric query
if ($stmt->execute() === false)
$errMsg = "";
foreach (mysqli_errors() as $error)
$errMsg.= "SQLSTATE: ".$error[ 'SQLSTATE']." - ";
$errMsg.= "code: ".$error[ 'code']." - ";
$errMsg.= "message: ".$error[ 'message']."\n";
throw new Exception($errMsg);
catch (Exception $e)
error_log("Error during saving record: ".$e->getMessage());
finally
$stmt->close();
【讨论】:
以上是关于脚本执行后如何保存用户在表单页面中输入的数据?的主要内容,如果未能解决你的问题,请参考以下文章
如何在执行php脚本后将mysql查询结果返回到html页面?