我正在尝试使用php和mysql进行调查，但我对代码有点不方便，因为当我提交调查表单时，它只保存调查的最后一个问题，这是因为INPUT名称。
这是代码。
数据库结构。
“问题”（质疑，问题）
“调查”（idsurvey，idquestion，answers，survey_number）
的config.php
<?php
class Connection{
//variables para los datos de la base de datos
public $server;
public $userdb;
public $passdb;
public $dbname;
public function __construct(){
//Iniciar las variables con los datos de la base de datos
$this->server = 'localhost';
$this->userdb = 'root';
$this->passdb = '';
$this->dbname = 'sistema_bss';
}
public function get_connected(){
//Para conectarnos a MySQL
$con = mysql_connect($this->server, $this->userdb, $this->passdb);
//Nos conectamos a la base de datos que vamos a usar
mysql_select_db($this->dbname, $con);
}
}
?>
Questions.php
public function show_questions(){
$query = "SELECT * FROM questions Where questionsnumber = 1";
$this->result = $this->objDb->select($query);
return $this->result;
}
public function new_survey(){
$query = "INSERT INTO survey VALUES('',
'".$_POST["questi"]."',
'".$_POST["answer"]."')";
$this->objDb->insert($query);
}
Survey_form.php
提示：表格没问题，它执行查询但问题是，它只存储调查的一个问题和答案，而是存储当时的所有问题和答案（数组的行）。
<form name="newDona" action="new_survey_exe.php" method="post" value= "">
<?php
//it calls the function that shows all the questions that are stored in the db
$numrows = mysql_num_rows($survey);
if($numrows > 0){
while($row=mysql_fetch_array($survey)){?>
<td>
<?php
echo $row["question"];?></td>
<th><select name="answer" >
<option value=""></option>
<option value="yes">yes</option>
<option value="NO">NO</option>
</select>
<tr><td colspan="5" align="center"><input type="submit" name="send" id="send" value="SAVE" /></td></tr>
我认为问题是“选择”名称，可能是因为它重写了调查中每个问题的其他问题和答案，因此它只存储了最后一个问题和答案。
我想使用一种形式存储多行：D
提前致谢。 ：）
答案 0 :(得分：0)
这是你的答案。您的insert命令没有分配列，只是值：
在类之外使用PDO连接
在您的情况下，如果您只想运行SQL查询，您将需要使用数据库的原始格式。这需要我的DBEngine中的两个更改。如果它将protected $con;更改为public $con;，那么当您想要调用任何类型的sql语句时，请执行以下操作：
// If the DB is already set don't do this step portion
require_once('includes/classes/dbconnect.php');
$db = new DBConnect('localhost','sistema_bss','root','');
// Here is where you use the PDO class
$query = $db->con->prepare("SELECT MAX(surveynumber) FROM survey");
$query->execute();
if($query->rowCount()>0) {
while($result = $query->fetch(PDO::FETCH_ASSOC)) {
print_r($result);
}
}
<强> newsurvey.php
<?php
// Not sure if this is proper path back to root then back
//to files, so you'll have to fix that if wrong
// Include db
require_once('includes/classes/dbconnect.php');
// Include questions class
require_once('apps/survey/classes/questions.php');
// Create connection
$con = new DBConnect('localhost','sistema_bss','root','');
// If answers not submitted, show form
if(!isset($_POST['answer'])) {
include_once('apps/survey/new.form.php');
}
// If answers submitted process the form
else {
// Create questions class, forward DB connection
$objDona = new Questions($con);
// Run the insert class
$objDona->NewSurveyMulti($_POST['answer']);
$display = $con->Fetch("select * from survey");
print_r($display);
} ?>
<强> new.form.php
<?php
// Fetch questions
$cuestionario = $con->Fetch("SELECT * FROM questions"); ?>
<form name="newDona" action="" method="post">
</table><?php
// Confirm there are questions being drawn from database
$numrows = (is_array($cuestionario))? count($cuestionario): 0;
if($numrows > 0) {
// Loop through questions
foreach($cuestionario as $row) { ?>
<tr>
<!-- Write the question -->
<td><?php echo $row["question"];?></td>
</tr>
<th>
<!-- Set the question id -->
<select name="answer[<?php echo $row['idquestion']; ?>][]">
<option value=""></option>
<option value="1">yes</option>
<option value="no">NO</option>
</select>
</th><?php } ?>
<tr>
<td colspan="5" align="center">
<input type="submit" name="send" id="send" value="SAVE" />
</td>
</tr>
</table>
</form>
<?php } ?>
<强> dbconnect.php
<?php
// I'm adding my PDO database because yours is deprecated
class DBConnect
{
public $con;
// Create a default database element
public function __construct($host = '',$db = '',$user = '',$pass = '')
{
try {
$this->con = new PDO("mysql:host=$host;dbname=$db",$user,$pass, array(PDO::ATTR_ERRMODE => PDO::ERRMODE_WARNING));
}
catch (Exception $e) {
return 0;
}
}
// Simple fetch and return method
public function Fetch($_sql)
{
$query = $this->con->prepare($_sql);
$query->execute();
if($query->rowCount() > 0) {
while($array = $query->fetch(PDO::FETCH_ASSOC)) {
$rows[] = $array;
}
}
return (isset($rows) && $rows !== 0 && !empty($rows))? $rows: 0;
}
// Simple write to db method
public function Write($_sql)
{
$query = $this->con->prepare($_sql);
$query->execute();
}
} ?>
<强> questions.php
<?php
class Questions
{
//atributos
public $nameDono;
public $objDb;
public $result;
public $connect;
public function __construct($dbconnection){
// My PDO connection
$this->MyDB = $dbconnection;
}
public function NewSurveyMulti($answer = array())
{
if(!empty($answer)) {
foreach($answer as $questi => $value) {
$this->MyDB->Write("INSERT INTO survey (`idquestion`,`answers`) VALUES('".$questi."', '".$value[0]."')");
}
}
}
public function mostrar_survey()
{
$this->result = $this->MyDB->Fetch("SELECT * FROM questions");
return $this->result;
}
public function new_survey()
{
$this->MyDB->Write("INSERT INTO survey (`idquestion`,`answers`,`surveynumber`) VALUES("'".$_POST["questi"]."','".$_POST["answer"]."','".$_POST["numsurvey"]."')");
}
} ?>
答案 1 :(得分：0)
这是代码Rasclatt
<强> QUESTIONS.PHP
<?php
class Questions{
//atributos
public $nameDono;
public $objDb;
public $result;
public function __construct(){
$this->objDb = new Database();
}
public function NewSurveyMulti($answer) {
if(!empty($answer)) {
foreach($answer as $questi => $value) {
$query = "INSERT INTO survey VALUES('','".$questi."', '".$value."')";
$this->objDb->insert($query);
}
}
}
// I don't know what the class name is but this is how
// you would apply this method
//--------------------------------I don't know where I have to put it, the class name is Questions.
if(isset($_POST['answer']))
Questions->NewSurveyMulti($_POST['answer']);
//this functions shows all the questions for the survey
public function mostrar_survey(){
$query = "SELECT * FROM questions ";
$this->result = $this->objDb->select($query);
return $this->result;
}
}
?>
<强> Survey_form.php
<?php
require'../class/questions.php';
$cuestionario= $objBdonar->show_questions();
$survey= $objBdonar->NewSurveyMulti($answer) ;
<form name="newDona" action="new_survey_exe.php" method="post">
</table><?php
//it calls the function that shows all the questions that are stored in the db
$numrows = mysql_num_rows($cuestionario);
if($numrows > 0) {
while($row = mysql_fetch_array($cuestionario)) { ?>
<tr>
<td>
<?php echo $row["question"];?>
</td>
</tr>
<th>
<select name="answer[<?php echo $row['questi']; ?>][]">
<option value=""></option>
<option value="yes">yes</option>
<option value="NO">NO</option>
</select>
</th><?php } ?>
<tr>
<td colspan="5" align="center">
<input type="submit" name="send" id="send" value="SAVE" />
</td>
</tr>
</table>
</form>
<?php } ?>
<强> New_survey_exe.php
<?php
require'../class/questions.php';
$objCon = new Connection();
$objCon->get_connected();
$objDona = new Questions();
$objDona->NewSurveyMulti($answer) ;
header('Location: ' . $_SERVER['HTTP_REFERER']);
?>