我正在做一个基于php的项目，并且我想将数据添加到数据库中，我是使用php，PDO完成的。我用OOC创建了代码。但是，HTML主页面中还有一个if部分。在那部分中，其他部分正在运行。但是我什至没有点击插入按钮。页面加载时，else部分正在运行。我观看了一个视频，此代码运行正常。这是代码。.
Insert.php-getter，setter，sql查询等。
class Stock
{
protected $ItemNo;
protected $ItemName;
protected $brand;
protected $qty;
protected $Description;
protected $ItemDate;
protected $SupplierName;
protected $SupplierMail;
private $tableName = 'StockDetails';
private $dbconn;
function setItemNo($ItemNo) { $this->ItemNo = $ItemNo; }
function getItemNo() { return $this->ItemNo; }
function setItemName($ItemName) { $this->ItemName = $ItemName; }
function getItemName() { return $this->ItemName; }
function setBrand($brand) { $this->brand = $brand; }
function getBrand() { return $this->brand; }
function setQty($qty) { $this->qty = $qty; }
function getQty() { return $this->qty; }
function setDescription($Description) { $this->Description = $Description; }
function getDescription() { return $this->Description; }
function setItemDate($ItemDate) { $this->ItemDate = $ItemDate; }
function getItemDate() { return $this->ItemDate; }
function setSupplierName($SupplierName) { $this->SupplierName = $SupplierName; }
function getSupplierName() { return $this->SupplierName; }
function setSupplierMail($SupplierMail) { $this->SupplierMail = $SupplierMail; }
function getSupplierMail() { return $this->SupplierMail; }
public function __construct()
{
require_once ('Database.php');
$db = new Database();
$this->dbconn = $db->connect();
}
public function insert(){
$sql = "INSERT INTO $this->tableName VALUES (:ItemNo, :ItemName, :brand, :qty, :Description, :ItemDate, :SupplierName, :SupplierMail)";
$stmt = $this->dbconn->prepare($sql);
$stmt->bindParam(':ItemNo', $this->ItemNo);
$stmt->bindParam(':ItemName', $this->ItemName);
$stmt->bindParam(':brand', $this->brand);
$stmt->bindParam(':qty', $this->qty);
$stmt->bindParam(':Description', $this->Description);
$stmt->bindParam(':ItemDate', $this->ItemDate);
$stmt->bindParam(':SupplierName', $this->SupplierName);
$stmt->bindParam(':SupplierMail', $this->SupplierMail);
if($stmt->execute()){
return true;
}else{
return false;
}}}
?>
Action.php-对AddItem.php进行表单操作
require_once ('Insert.php');
class action{
function __construct(){
switch ($_POST['submit']) {
case 'insert':
$obInsert = new Stock;
$obInsert->setItemNo($_POST['ItemNo']);
$obInsert->setItemName($_POST['ItemName']);
$obInsert->setBrand($_POST['brand']);
$obInsert->setQty($_POST['qty']);
$obInsert->setDescription($_POST['Description']);
$obInsert->setItemDate(date('Y-m-d H:i:s'));
$obInsert->setSupplierName($_POST['SupplierName']);
$obInsert->setSupplierMail($_POST['SupplierMail']);
if($obInsert->insert()) {
header('location: AddItem.php?insert=1');
} else{
header('location: AddItem.php?insert=0');
}
break;
default:
header('location: AddItem.php');
break;
}
}
}
if(isset($_POST['submit'])){
$object = new action;
}
AddItem.php
从数据库中获取品牌和ItemName。品牌会根据ItemName更改。
<?php
require_once ('GetBrand.php');
$ItemName = LoadItemName();
?>
$(document).ready(function(){
$("#ItemName").change(function(){
var aid = $("#ItemName").val();
$.ajax({
url: 'GetBrand.php',
method: 'post',
data: 'aid=' + aid
}).done(function(brand){
console.log(brand);
brand = JSON.parse(brand);
$('#brand').empty();
brand.forEach(function(bnamee){
$('#brand').append('<option>' + bnamee.brand + '</option>')
})
})
})
})
表格
<form name="form0" method="post" action="Action.php">
<div class="form-group">
<label for="text">Item No</label>
<input type="text" name="ItemNo" id="ItemNo" placeholder="Item No" required>
</div>
<form name="form1" action="AddItem.php" method="post">
<div class="form-group">
<label for="text">Item Name</label>
<table>
<tr>
<td><select name="ItemName" id="ItemName" required>
<option value="" disabled="" selected>Select Name</option>
<?php foreach($ItemName as $iname)
echo "<option id='".$iname['ItemNo']."' value='".$iname['ItemNo']."'>".$iname['ItemName']."</option>";
?>
</select></td>
<td><label for="text">Add Item Name : </label></td>
<td><input type="text" name="name" id="name"> </td>
<td><button>Add</button></td>
</tr>
</table>
</div>
<div class="form-group">
<label for="text">Brand Name</label>
<table>
<tr>
<td><select name="brand" id="brand" required>
<option value="">Select Brand</option>
</select></td>
<td<label for="text">Add Brand : </label></td>
<td><input type="text" name="Bname" id="Bname" class="form-control" > </td>
<td><button>Add</button></td>
</tr>
</table>
</div>
</form>
<div class="form-group">
<label for="text">Quantity</label>
<input type="text" name="qty" id="qty" placeholder="Quantity" required>
</div>
<div class="form-group">
<label for="text">Item Description</label>
<input type="text" name="Description" id="Description" placeholder="Description" required>
</div>
<div class="form-group">
<label for="text">Date</label>
<input type="date" name="ItemDate" id="ItemDate" required>
</div>
<div class="form-group">
<label for="text">Supplier Name</label>
<input type="text" name="SupplierName" id="SupplierName" placeholder="Supplier Name" required>
</div>
<div class="form-group">
<label for="text">Supplier Mail</label>
<input type="text" name="SupplierMail" id="SupplierMail" placeholder="Supplier Mail" required>
</div><br/>
<div class="form-group">
<button id="submit" name="submit" value="insert">Insert</button>
<?php
if(isset($_GET['insert']) && ($_GET['insert'] == 1)){
echo "Inserted Successfully ";
}else // This else part is running when the page is loading
echo "Ooops..! Something went wrong.";
}
?>
</div>
</form>
答案 0 :(得分：1)
<?php
if(isset($_GET['insert']) && ($_GET['insert'] == 1)){
echo "Inserted Successfully ";
}else // This else part is running when the page is loading
echo "Ooops..! Something went wrong.";
}
?>
您对此运行感到惊讶吗？
您在这里说的是，如果有一个名为insert的$ _GET参数，它等于1，则在可能存在的任何其他情况下回显“插入...”
Php无法自然地分辨出这是初始页面加载，重定向，按下按钮还是您的想法。如果只希望在单击按钮后才能运行该程序，则需要对整个操作进行一些额外的检查，例如
if(isset($_POST['submit'])) {
///add in your checks to
}
或更可能更适合您的是
if(isset($_GET['insert']) {
if($_GET['insert'] == 1)){
echo "Inserted Successfully ";
} else {// you're missing a brace here
echo "Ooops..! Something went wrong.";
}
}
关键是，您的代码将始终运行，因为它是一个if / else，即执行此操作或执行该操作-但是您想说的是是i fa -执行 b 或 c ，不执行其他操作。我认为您需要尝试并确切了解条件的工作原理