[英]PHP Loop with dropdown selection and submit button?
我正在尝试制作一个循环，以从sql表-MySQL表获取名称有关产品的其他信息
到目前为止，我确实有显示此代码的代码，但我无法找到一种方法来更新下拉菜单的名称，因此当我按Submit时，它将产品名称以及随后有多少个产品写入了另一个SQL表。选择的客户。
<?php
$sql = "SELECT * FROM product";
$result = $conn->query($sql);
while ( $row = mysqli_fetch_assoc($result) ) {
$columnValues[] = $row['ProductID'];
foreach($columnValues as $key => $value) {
$$key = $value;
while ($row = $result->fetch_assoc()) {
echo "<tr>\n". "<br>";
echo "##product-ID## ";
echo "<td>".$row['ProductID']. "</td>\n";
echo " ##product-name## ";
echo "<td>".$row['ProductName']."</td>\n";
echo "<td>\n";
echo " ##dropdown## ";
echo "<select id=$value>\n";
echo "<option value='1'>1</option>\n";
echo "<option value='2'>2</option>\n";
echo "<option value='3'>3</option>\n";
echo "<option value='4'>4</option>\n";
echo "<option value='5'>5</option>\n";
echo "<option value='6'>6</option>\n";
echo "</select>\n";
echo "</td>\n";
echo "</tr>\n";
}
}
}
$conn->close();
?>
<html>
<body>
<form method="POST" action="#" >
<input type="submit" name="Submit" value="Submit" /><br>
</form> </body>
</html>
我知道我很可能需要第二个php脚本来捕获帖子，因此也将非常感谢您的帮助。
////////////////////////////////////////////////
因此，到目前为止，我已经知道了-循环并显示所有产品。 当我按Submit时，它仅添加循环中的最后一个产品，而不必关心下拉菜单-只需添加“ 2”。
脚本编写的表格很简单-4列OrderID1，productid1，ProductName1orderedqnt1
提前致谢 。
<html>
<body>
<form method="POST" action="insert.php" >
<?php
session_start(); // session start for Variables to add to the sql in Insert.php
include("global.php"); // Stores the session Variables
## Conection part
$sql = "SELECT * FROM product";
$result = $conn->query($sql);
while ( $row = mysqli_fetch_assoc($result) ) {
$columnValues[] = $row['ProductID'];
foreach($columnValues as $key => $value) {
$$key = $value;
while ($row = $result->fetch_assoc()) {
echo "<tr>\n". "<br>";
echo "##product-ID## ";
echo "<td>".$row['ProductID']. "</td>\n";
echo " ##product-name## ";
echo "<td>".$row['ProductName']."</td>\n";
echo "<td>\n";
/* echo " ##dropdown## "; */
echo "<select id=" . $value . " name='dropdown'>\n";
echo "<option value=''>-</option>\n";
echo "<option value='1'>1</option>\n";
echo "<option value='2'>2</option>\n";
echo "<option value='3'>3</option>\n";
echo "<option value='4'>4</option>\n";
echo "<option value='5'>5</option>\n";
echo "<option value='6'>6</option>\n";
echo "</select>\n";
/* echo "</td>\n"; */
/* Echo ":::::value variable = "."$value"; */
echo "</tr>\n" . "<br>";
print_r ($value);
$_SESSION['GrabIDses']=mysqli_real_escape_string($conn,$row['ProductID']); //Grabs the ID of the product in Session Variable
$_SESSION['GrabNameses']=mysqli_real_escape_string($conn,$row['ProductName']); //Grabs the Name of the product in Session Variable
$_SESSION['GrabSKUses']=mysqli_real_escape_string($conn,$row['SKU']); //Grabs the SKU of the product in Session Variable
$_SESSION['Ordered']=mysqli_real_escape_string($conn,$value); //Grabs the Ordered Quantity for the product in Session Variable ????????????????
/* $GrabID = mysqli_real_escape_string($conn,$row['ProductID']);
$GrabName = mysqli_real_escape_string($conn,$row['ProductName']);
$GrabSKU = mysqli_real_escape_string($conn,$row['SKU']);
echo "----------------------"."$_SESSION['GrabSKUses']"."<br>"."$_SESSION['GrabIDses']"."<br>"."----------------------"; */
}
}
}
$conn->close();
echo "<br>";
?>
<input type="submit" name="Submit" value="Submit" /><br>
</form>
</body>
<?php
session_start(); // session start
$getvalue = $_SESSION['GrabIDses']; // session get
$getvalue1 = $_SESSION['GrabNameses']; // session get
$getvalue2 = $_SESSION['GrabSKUses']; // session get
$ordered11 = $_SESSION['Ordered']; // session get
echo $getvalue;
echo "||";
echo $getvalue1;
echo "||";
echo $getvalue2;
echo "||"."<br>";
print_r($_SESSION);
## Connection Part
if(isset($_POST['dropdown'])) {
echo("You order was completed" . "<br>");
$sql = "INSERT INTO testorder (productid1,ProductName1,orderedqnt1) VALUES ('$getvalue', '$getvalue1','$ordered11')";
if (mysqli_query($conn, $sql))
{ echo "New record created successfully"; }
else
{ echo "Error: " . $sql . "<br>" . mysqli_error($conn); }
mysqli_close($conn);
}
else {
echo" dhur";
}
?>
echo "<select id=$value>\n";
需要一个名字。 所以改为
echo "<select id=" . $value . " name='dropdown'>\n";
然后，您需要制作第二页，使用
if(isset($_POST['dropdown'])) {
然后使用信息插入或更新表。 我认为您可以很轻松地把这部分归结为:)。
编辑：
while ( $row = mysqli_fetch_assoc($result) ) {
$columnValues[] = $row['ProductID'];
foreach($columnValues as $key => $value) {
$$key = $value;
while ($row = $result->fetch_assoc()) {
您正在使用2个while循环。 一对多。
<select> -Box必须完全位于表单内部和网页内部。
在<select> -Tag中输入名称属性，以使数据在保存脚本中可用vie $ _POST
我不确定您要做什么，所以我不知道$ row ['ProductID']是否是一个合理的名称。
<html>
<body>
<form method="POST" action="#" >
<?php
$servername = "localhost";
$username = "root";
$password ="";
$dbname = "company";
// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);
// Check connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
$sql = "SELECT * FROM product";
$result = $conn->query($sql);
while ( $row = mysqli_fetch_assoc($result) ) {
$columnValues[] = $row['ProductID'];
foreach($columnValues as $key => $value) {
$$key = $value;
while ($row = $result->fetch_assoc()) {
echo "<tr>\n". "<br>";
echo "##product-ID## ";
echo "<td>".$row['ProductID']. "</td>\n";
echo " ##product-name## ";
echo "<td>".$row['ProductName']."</td>\n";
echo "<td>\n";
echo " ##dropdown## ";
echo "<select id='$value' name='{$row['ProductID']}'>\n";
echo "<option value='1'>1</option>\n";
echo "<option value='2'>2</option>\n";
echo "<option value='3'>3</option>\n";
echo "<option value='4'>4</option>\n";
echo "<option value='5'>5</option>\n";
echo "<option value='6'>6</option>\n";
echo "</select>\n";
echo "</td>\n";
/* Echo ":::::value variable = "."$value"; */
echo "</tr>\n";
}
}
}
$conn->close();
?>
<input type="submit" name="Submit" value="Submit" /><br>
</form>
</body>
</html>
<body>
<form method="POST" action="#" >
<?php
$servername = "localhost";
$username = "root";
$password ="";
$dbname = "company";
// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);
// Check connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
$sql = "SELECT * FROM product";
$result = $conn->query($sql);
while ( $row = mysqli_fetch_assoc($result) ) {
$columnValues[] = $row['ProductID'];
foreach($columnValues as $key => $value) {
$$key = $value;
while ($row = $result->fetch_assoc()) {
echo "<tr>\n". "<br>";
echo "##product-ID## ";
echo "<td>".$row['ProductID']. "</td>\n";
echo " ##product-name## ";
echo "<td>".$row['ProductName']."</td>\n";
echo "<td>\n";
echo " ##dropdown## ";
echo "<select id='$value' name='{$row['ProductID']}'>\n";
echo "<option value='1'>1</option>\n";
echo "<option value='2'>2</option>\n";
echo "<option value='3'>3</option>\n";
echo "<option value='4'>4</option>\n";
echo "<option value='5'>5</option>\n";
echo "<option value='6'>6</option>\n";
echo "</select>\n";
echo "</td>\n";
/* Echo ":::::value variable = "."$value"; */
echo "</tr>\n";
}
}
}
$conn->close();
?>
<input type="submit" name="Submit" value="Submit" /><br>
</form>
</body>
</html>
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