当用户从第一页选择不同的选项时，我试图在表格中显示不同的数据...我尝试使用javascript给出排序功能。但是，即使用户选择了不同的选项，显示的数据也是相同的。 ..
这是我主页的代码
的test.html
<form action="index2.php" method="post">
<table border="0">
<tr>
<th colspan="3">test</th>
</tr>
<tr>
<td>Select Foreign Agent Country</td>
<td></td>
<td>
<select name="country">
<option value="US">United States</option>
<option value="NZ">New Zealand</option>
<option value="JP">Japan</option>
</select>
</td>
</tr>
<td colspan="3">
<input type="submit" name="formSubmit" value-"Submit">
</td>
</table>
</form>
这是我从数据库中检索数据的代码，该数据库连接到我的javascript
index2.php
<script language="JavaScript" type="text/javascript" src="js/select-all.js"></script>
</head>
<body>
<!--id class -->
<div id="contentHolder">
<?php
$connect = mysql_connect("localhost", "root", "");
//connect to database
//select the database
mysql_select_db("fak_databases");
//submit button
if($_POST['formSubmit'] == "Submit")
{
$country = $_POST['country'];
}
if(isset($_GET['orderby'])){
$order = $_GET['orderby'];
$sort = $_GET['sort'];
if($country == 'US') {
// query to get all US records
if($order != 'wipo_applicant1_city' && $order != 'applicant1_addr1' && $order != 'wipo_applicant1_state')$order = "wipo_applicant1_city";
if($sort != 'asc' && $sort != 'desc')$sort = "asc";
$sql = "SELECT `wipo_applicant1_city`, `applicant1_addr1`, `wipo_applicant1_state`, `invention-title` FROM `auip_wipo_sample` WHERE applicant1_country='US' ORDER BY ".mysql_real_escape_string($order)." ".$sort;
//here we reverse the sort variable
if($sort == "asc"){
$sort = "desc";
}
else{
$sort = "asc";
}
}
else if($country == 'NZ') {
// query to get all US records
//$query = mysql_query("SELECT * FROM auip_wipo_sample WHERE applicant1_country='US'");
if($order != 'wipo_applicant1_city' && $order != 'applicant1_addr1' && $order != 'wipo_applicant1_state')$order = "wipo_applicant1_city";
if($sort != 'asc' && $sort != 'desc')$sort = "asc";
$sql = "SELECT `wipo_applicant1_city`, `applicant1_addr1`, `wipo_applicant1_state`, `invention-title` FROM `auip_wipo_sample` WHERE applicant1_country='NZ' ORDER BY ".mysql_real_escape_string($order)." ".$sort;
//here we reverse the sort variable
if($sort == "asc"){
$sort = "desc";
}
else{
$sort = "asc";
}
}
else if($country == 'JP') {
// query to get all US records
//$query = mysql_query("SELECT * FROM auip_wipo_sample WHERE applicant1_country='US'");
if($order != 'wipo_applicant1_city' && $order != 'applicant1_addr1' && $order != 'wipo_applicant1_state')$order = "wipo_applicant1_city";
if($sort != 'asc' && $sort != 'desc')$sort = "asc";
$sql = "SELECT `wipo_applicant1_city`, `applicant1_addr1`, `wipo_applicant1_state`, `invention-title` FROM `auip_wipo_sample` WHERE applicant1_country='JP' ORDER BY ".mysql_real_escape_string($order)." ".$sort;
//here we reverse the sort variable
if($sort == "asc"){
$sort = "desc";
}
else{
$sort = "asc";
}
}
}else {
$order = "";
$sort = "asc";
$sql = "SELECT `wipo_applicant1_city`, `applicant1_addr1`, `wipo_applicant1_state`, `invention-title` FROM `auip_wipo_sample`";
}
$result = mysql_query($sql);
$num_rows = mysql_num_rows($result);
$row_counter = 0;
$icon = "";
echo "<table border=\"1\" cellspacing=\"0\">\n";
echo "<tr>\n";
// first column
echo "<th>";
$icon = "";
if($order == "wipo_applicant1_city"){
if($sort == "asc"){
$icon = "<img src=\"images/up.png\" class=\"arrowSpace\"/>";
}
if($sort == "desc"){
$icon = "<img src=\"images/down.png\" class=\"arrowSpace\"/>";
}
}
//print the result
echo "<a href='index2.php?orderby=wipo_applicant1_city&sort=".$sort."'>City</a>".$icon;
echo "</th>\n";
// second column
echo "<th>";
$icon = "";
if($order == "applicant1_addr1"){
if($sort == "asc"){
$icon = "<img src=\"images/up.png\" class=\"arrowSpace\"/>";
}
if($sort == "desc"){
$icon = "<img src=\"images/down.png\" class=\"arrowSpace\"/>";
}
}
echo "<a href='index2.php?orderby=applicant1_addr1&sort=".$sort."'>Address</a>".$icon;
echo "</th>\n";
// third column
echo "<th>";
$icon = "";
if($order == "wipo_applicant1_state"){
if($sort == "asc"){
$icon = "<img src=\"images/up.png\" class=\"arrowSpace\"/>";
}
if($sort == "desc"){
$icon = "<img src=\"images/down.png\" class=\"arrowSpace\"/>";
}
}
echo "<a href='index2.php?orderby=wipo_applicant1_state&sort=".$sort."'>State</a>".$icon;
echo "</th>\n";
echo "</tr>";
//fetch the result
while($row = mysql_fetch_array($result)){
//give a different color for row
if($row_counter % 2){
$row_color="bgcolor='#FFFFFF'";
}else{
$row_color="bgcolor='#F3F6F8'";
}
echo "<tr class=\"TrColor\" ".$row_color.">";
echo "<td>" . $row['wipo_applicant1_city'] . "</td>\n";
echo "<td>" . $row['applicant1_addr1'] . "</td>\n";
echo "<td>" . $row['wipo_applicant1_state'] . "</td>\n";
echo "</tr>";
$row_counter++;
}
echo "</table>";
?>
</div>
</body>
显示-all.js
function SelectAll(btn) {
var blnVal = false;
if (btn.value == "Select All") {
btn.value = "Unselect All";
blnVal = true;
}else {
btn.value = "Select All";
blnVal = false;
}
var d = document.forms["auip_wipo_sample"];
if(d["auip_wipo_sample[]"] == null)
{}
else if (d["auip_wipo_sample[]"].length == null) {
d["auip_wipo_sample[]"].checked = blnVal;
}
else {
for (var i = 0; i < d["auip_wipo_sample[]"].length; i++) {
d["auip_wipo_sample[]"][i].checked = blnVal;
}
}
}
执行代码时没有错误但结果始终相同
有人知道我的代码有什么问题吗？
答案 0 :(得分：0)
它正在触及你的其他声明，因为只有在设置了orderby时才会检查所有国家/地区特定的代码，所以如果没有设置，它将执行你的其他操作，每次都是相同的代码。
此外，还有太多的代码需要清理，但是我会列出一些列表，告诉你可以做些什么来清理代码大概75％
使用所有这些选项进行查询，例如：
$ sql =“SELECT column1，column2，etc FROM auip_wipo_sample $ countryWhereStatement $ sort $ orederedby”;
如果正确执行逻辑，$ country变量将包含关键字WHERE country ='US'，$ sort变量将包含ASC或DESC，order by将包含关键字ORDER BY columnname
这样做可以节省空间并使事情更容易阅读，甚至更具动态性。
另外，除非绝对必要，否则尽量不要使用反引号。它们对于真正旧版本的MySQL是必要的（我的意思是真的很旧），如果字段或表名与MySQL关键字相同。否则，你不应该需要它们。