如何使用php中的一个表单插入和更新。插入和更新无效 该怎么办。我有文件productinsert.php和一个文件显示数据displayProduct.php当我插入数据时没有插入它重定向在同一页面它不显示addProduct.php上的数据也没有更新plz帮助
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML
1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<title>Untitled Document</title>
<?php
include('header1.php');
?>
</head>
<body>
<?php
include('sidenav.php');
?>
<div id="page-wrapper" >
<div id="page-inner">
<div class="row">
<div class="col-md-12">
<h2>Add Product</h2>
</div>
</div>
<!-- /. ROW -->
<hr />
<div class="row">
<?php
include('config.php');
if($_SERVER['REQUEST_METHOD']=='POST')
{
if(isset($_POST['submit']))
{
$fileName=$_FILES["filepdf"]["name"];
$fileSize=$_FILES["filepdf"]["size"]/2024;
$fileType=$_FILES["filepdf"]["type"];
$fileTmpName=$_FILES["filepdf"]["tmp_name"];
if($fileType=="application/pdf"){
if($fileSize<=200){
//New file name
$random=rand(1111,9999);
$newFileName=$random.$fileName;
//File upload path
$uploadPath="testUpload/".$newFileName;
//function for upload file
if(move_uploaded_file($fileTmpName,$uploadPath))
{
echo "Successful<BR>";
echo "File Name :".$newFileName."<BR>";
echo "File Size :".$fileSize." kb"."<BR>";
echo "File Type :".$fileType."<BR>";
}
else
{
echo "Maximum upload file size limit is 200 kb";
}
}
else
{
return false;
echo "You can only upload a pdf doc file.";
}
echo "here downld";
$updates = isset($_POST['updates']) ? 'Yes' : 'No';
$catnm=$_POST['catnm'];
$prodnm=$_POST['prodnm'];
$prod_dtl=$_POST['prod_dtl'];
//$updates=$_POST['downld'];
$date=$_POST['date'];
$query=("insert into addproduct(catnm,prodnm,prod_dtl,pdf,downld,date)
values('$catnm','$prodnm','$prod_dtl','$uploadPath','$updates','$date')");
$result = mysql_query($query,$conn);
echo"record inserted";
if($result)
{
header("location:addProduct.php");
}
}
}
}
else if($_SERVER['REQUEST_METHOD']=='GET')
{
if(isset($_GET['id']))
{
$id = $_GET['id'];
if(isset($_POST['submit']))
{
$updates['downld'] = isset($_POST['downld']) ? 'Yes' : 'No';
$cat['catnm']=$_POST['catnm'];
$prodnm['prodnm']=$_POST['prodnm'];
$prod_dtl['prod_dtl']=$_GET['prod_dtl'];
$pdf['pdf']=$_GET['pdf'];
$downld['downld']=$_GET['downld'];
$date['date']=$_GET['date'];
$query3=mysql_query("update addproduct set catnm='$cat',
prodnm='$prodnm',prod_dtl='$prod_dtl'
,pdf='$pdf',downld='$updates',date='$date' where id='$id'");
if($query3)
{
header('location:addProduct.php');
}
}
$query1=mysql_query("select * from addproduct where id='$id'");
$query4=mysql_fetch_array($query1);
//echo "<pre>";
//print_r($query4);
}
}
?>
<div class="col-md-6 col-sm-12 col-xs-12">
<div class="panel-body">
<form role="form" method="get" enctype="multipart/form-data"
name="myform" action= "<?php echo $_SERVER['PHP_SELF'];?>">
<br/>
<label>Select Category:</label>
<div class="form-group">
<?php
include('config.php');
$query1=mysql_query("select catnm from addcategory");
?>
<select class=form-control m-b-10 name=catnm id=catnm >
<?php
echo"<option>---Select---</option required>";
while($query=mysql_fetch_array($query1))
{
$selectedCat = '';
if($query[catnm] == $query4['catnm'])
{
$selectedCat = "selected";
}
echo "<option value='$query[catnm]' $selectedCat >$query[catnm]</option>";
}
?>
</select>
<br/>
<div class="form-group">
<input type="text" class="form-control" id="prodnm"
placeholder="Product Name" name="prodnm" required
value= "<?php $query4['prodnm']; ?>"/>
</div>
<div class="form-group">
<textarea class="form-control" id="catdtl" name="catdtl"
placeholder="Product Detail" "rows="10" cols="62" required>
<?php echo $query4['prod_dtl']; ?>
</textarea>
</div>
<div class="form-group">
<label for="exampleInputFile">PDF File</label>
<input type="file"
id="exampleInputFile" accept="application/pdf" name="filepdf" required >
file : <?php echo $query4['pdf']; ?>
</div>
<div class="checkbox">
<label>
<input id="checkbox" type="checkbox" name="updates" required
/> Is Downloadable <br />
</label>
</div>
<input type="text"
placeholder="Date of Upload" id="" name="date" required />
<div style="padding-top:20px;padding-bottom:40px;width:650px;">
<input type="submit" name="submit" id="button" tabindex="2"/>
<hr/>
</form>
<?php
if(isset($_GET['id']))
{
$id=$_GET['id'];
if(isset($_POST['submit']))
{
$updates['downld'] = isset($_POST['downld']) ? 'Yes' : 'No';
$cat['catnm']=$_POST['catnm'];
$prodnm['prodnm']=$_POST['prodnm'];
$prod_dtl['prod_dtl']=$_GET['prod_dtl'];
$pdf['pdf']=$_GET['pdf'];
$downld['downld']=$_GET['downld'];
$date['date']=$_GET['date'];
$query3=mysql_query("update addproduct set catnm='$cat',
prodnm='$prodnm',prod_dtl='$prod_dtl'
,pdf='$pdf',downld='$updates',date='$date' where id='$id'");
if($query3)
{
header('location:addProduct.php');
}
}
}
?>
</div>
<!-- /. ROW -->
</div>
<!-- /. PAGE INNER -->
</div>
<!-- /. PAGE WRAPPER -->
</div>
</body>
</html>
答案 0 :(得分：1)
何时需要更新添加以形成id等于行的隐藏字段以更新和命名id。如果需要插入请不要使用id行。
<form>
if(isset($_GET['update'])) echo '<input type="hidden" name="id" value="'.$_GET['id'].'">';
</form>
if(isset($_POST['id'])) { do sql to update where id=$_POST['id']; } else {do sql to insert}
同样要更新，您需要使用来自DB的现有数据填充输入
<input value="<? if(isset($_GET['update'])) echo $value; ?>">
<select> <option value="1" if(isset($_GET['update']) && select1==1) echo 'selected'; >1</options>
<option value="2" if(isset($_GET['update']) && select1==2) echo 'selected'; >2</options>