Question

我有一个表单，它将提交将一行插入数据库的信息（公司详细信息）。提交工作正常但我也发现转到包含表单的页面将在数据库中插入一个空行。知道为什么会这样吗？代码如下：

<?php
echo "<form action='addnew.php' method='post'>";
echo "<input type='text' name='categoryAdd' value='Travel'/><br/>";
echo "<input type='text' name='EstablishmentNameAdd' value='EstablishmentName'/><br/>";
echo "<input type='text' name='Address1Add' value='Address1'/><br/>";
echo "<input type='text' name='Address2Add' value='Address2'/><br/>";
echo "<input type='text' name='Address3Add' value='Address3'/><br/>";
echo "<input type='text' name='Address4Add' value='Address4'/><br/>";
echo "<input type='text' name='PostcodeAdd' value='Postcode'/><br/>";
echo "<input type='text' name='NearestStationAdd' value='NearestStation'/><br/>";
echo "<input type='text' name='TelAdd' value='Tel'/><br/>";
echo "<input type='text' name='FaxAdd' value='Fax'/><br/>";
echo "<input type='text' name='EmailAdd' value='Email'/><br/>";
echo "<input type='text' name='WebsiteAdd' value='Website'/><br/>";
echo "<input type='text' name='DescriptionAdd' value='Description'/><br/>";
echo "<input type='submit' value='test'/>";
echo "</form>"; 

$EstablishmentNameAdd = mysql_real_escape_string($_POST['EstablishmentNameAdd']);
$CategoryAdd = $_POST['categoryAdd'];
$Address1Add = mysql_real_escape_string($_POST['Address1Add']);
$Address2Add = mysql_real_escape_string($_POST['Address2Add']);
$Address3Add = mysql_real_escape_string($_POST['Address3Add']);
$Address4Add = mysql_real_escape_string($_POST['Address4Add']);
$PostcodeAdd = $_POST['PostcodeAdd'];
$NearestStationAdd = mysql_real_escape_string($_POST['NearestStationAdd']);
$TelAdd = $_POST['TelAdd'];
$FaxAdd = $_POST['FaxAdd'];
$EmailAdd = mysql_real_escape_string($_POST['EmailAdd']);
$WebsiteAdd = mysql_real_escape_string($_POST['WebsiteAdd']);
$DescriptionAdd = mysql_real_escape_string($_POST['DescriptionAdd']);

$result1 = mysql_query("INSERT into establishment_id (EstablishmentName) values ('$EstablishmentNameAdd')");
$result2 = mysql_query("SELECT * from establishment_id where EstablishmentName = '$EstablishmentNameAdd'");
while($row = mysql_fetch_array($result2))
  {
$ID = $row['EstablishmentID'];
$NAME = $row['EstablishmentName'];

};
$result3 = mysql_query("INSERT into establishmentdetails (EstablishmentID, EstablishmentName, category, Address1, Address2, Address3, Address4, Postcode, NearestStation, Tel, Fax,
Email, Website, Description) values('$ID', '$EstablishmentNameAdd', '$CategoryAdd', '$Address1Add', '$Address2Add', '$Address3Add', '$Address4Add', '$PostcodeAdd', '$NearestStationAdd', '$TelAdd', '$FaxAdd', '$EmailAdd',
 '$WebsiteAdd', '$DescriptionAdd')");

?>

Answer 1

在所有回声之后添加：

if(!empty($_POST)){
...
}

将所有底部代码包装在其中，这样只有在有帖子的情况下才能进行插入。

Answer 2

这种情况正在发生，因为您正在回显表单..然后立即在数据库中插入尚不存在的内容。

你可以试试这个：

if(count($_POST) > 0 && in_array('EstablishmentNameAdd',$_POST)) {
$EstablishmentNameAdd = mysql_real_escape_string($_POST['EstablishmentNameAdd']);
$CategoryAdd = $_POST['categoryAdd'];
$Address1Add = mysql_real_escape_string($_POST['Address1Add']);
$Address2Add = mysql_real_escape_string($_POST['Address2Add']);
$Address3Add = mysql_real_escape_string($_POST['Address3Add']);
$Address4Add = mysql_real_escape_string($_POST['Address4Add']);
$PostcodeAdd = $_POST['PostcodeAdd'];
$NearestStationAdd = mysql_real_escape_string($_POST['NearestStationAdd']);
$TelAdd = $_POST['TelAdd'];
$FaxAdd = $_POST['FaxAdd'];
$EmailAdd = mysql_real_escape_string($_POST['EmailAdd']);
$WebsiteAdd = mysql_real_escape_string($_POST['WebsiteAdd']);
$DescriptionAdd = mysql_real_escape_string($_POST['DescriptionAdd']);

$result1 = mysql_query("INSERT into establishment_id (EstablishmentName) values ('$EstablishmentNameAdd')");
$result2 = mysql_query("SELECT * from establishment_id where EstablishmentName = '$EstablishmentNameAdd'");
while($row = mysql_fetch_array($result2))
  {
$ID = $row['EstablishmentID'];
$NAME = $row['EstablishmentName'];

};
$result3 = mysql_query("INSERT into establishmentdetails (EstablishmentID, EstablishmentName, category, Address1, Address2, Address3, Address4, Postcode, NearestStation, Tel, Fax,
Email, Website, Description) values('$ID', '$EstablishmentNameAdd', '$CategoryAdd', '$Address1Add', '$Address2Add', '$Address3Add', '$Address4Add', '$PostcodeAdd', '$NearestStationAdd', '$TelAdd', '$FaxAdd', '$EmailAdd',
 '$WebsiteAdd', '$DescriptionAdd')");
}

PHP - 数据库在加载页面时生成空行

2 个答案: