当我在bill.php中选择一些东西时，它调用ajax并从get user.php获取值然后它在bill.php页面上显示内容但是如何在bill.php页面中的变量中保存这些值以便进一步在php中使用
<?php
include('db.php');
?>
<html>
<head>
<style>
table, tr th{
border: green;
}
th {
}
</style>
<script type="text/javascript">
function updatesum()
{
document.form.sum.value = (document.form.sum2.value -0);
document.form.sumone.value = (document.form.sum3.value -0) ;
document.form.sumtotal.value = (document.form.sum.value -0) * (document.form.sumone.value -0);
document.form.sumtotalgiven.value=(document.form.sumtotalmoney.value -0) - (document.form.sumtotal.value -0);
}
</script>
<script>
function showUser(str) {
if (str == "") {
document.getElementById("txtHint").innerHTML = "";
//document.getElementById("txtHin").innerHTML = "";
return;
} else {
if (window.XMLHttpRequest) {
// code for IE7+, Firefox, Chrome, Opera, Safari
xmlhttp = new XMLHttpRequest();
} else {
// code for IE6, IE5
xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
}
xmlhttp.onreadystatechange = function() {
if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {
document.getElementById("txtHint").innerHTML = xmlhttp.responseText;
//document.getElementById("txtHin").innerHTML = xmlhttp.responseText;
}
}
xmlhttp.open("GET","getuser.php?q="+str,true);
xmlhttp.send();
}
}
</script>
<script>
function shoUser(str) {
if (str == "") {
document.getElementById("txtHin").innerHTML = "";
return;
} else {
if (window.XMLHttpRequest) {
// code for IE7+, Firefox, Chrome, Opera, Safari
xmlhttp = new XMLHttpRequest();
} else {
// code for IE6, IE5
xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
}
xmlhttp.onreadystatechange = function() {
if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {
document.getElementById("txtHin").innerHTML = xmlhttp.responseText;
}
}
xmlhttp.open("GET","getuser.php?q="+str,true);
xmlhttp.send();
}
}
</script>
</head>
<body bgcolor="#C7CBE1">
<form method="get" name="form">
<table border="0" bordercolor="#D83E41">
<tr>
<td> medicine </td>
<td> price batchno
expire date</td>
<td>
quantity</td>
<td>
Total </td>
</tr>
<tr>
<td>
<?php
$qry="select * from inventory";
$rs=mysql_query($qry);
?>
<select name="user" onchange="showUser(this.value)">
<option value=>selet medicine name</option>
<?php
while($rw=mysql_fetch_array($rs)){
?>
<option value="<?php echo $rw['id']?>"><?php echo $rw['medicine']?></option>
<?php
}
?>
</select>
</td>
<td>
<div id="txtHint">
</div>
</td>
<td>
<input type="text" name="sum2" style="width: 70px" onChange="updatesum()" ></td>
<td>
<input name="sum" readonly " style="width: 70px"></td>
</tr>
<tr>
<td>
<?php
$qry="select * from inventory";
$rs=mysql_query($qry);
?>
<select name="user" onchange="shoUser(this.value)">
<option value=>selet medicine name</option>
<?php
while($rw=mysql_fetch_array($rs)){
?>
<option value="<?php echo $rw['id']?>"><?php echo $rw['medicine']?></option>
<?php
}
?>
</select>
</td>
<td>
<div id="txtHin">
</div>
</td>
<td>
<input type="text" name="sum3" style="width: 70px" onChange="updatesum()" ></td>
<td>
<input name="sumone" readonly " style="width: 70px"></td>
<td>
</td>
<tr></tr>
<tr></tr>
<tr></tr>
<tr></tr>
<tr></tr>
<tr></tr>
<tr></tr>
<tr></tr>
</tr>
<tr>
<td></td>
<td></td>
<td></td>
<td> total<input name="sumtotal" readonly style="border:0px;"> </td>
</tr>
<tr>
<td></td>
<td></td>
<td></td>
<td> paid<input type="text" name="sumtotalmoney" style="border:0px;" onChange="updatesum()"> </td>
</tr>
<tr>
<td></td>
<td></td>
<td></td>
<td> Return<input name="sumtotalgiven" readonly style="border:0px;" > </td>
</tr>
</table>
</form>
<br>
</body>
</html>
<?php
include("db.php");
?>
<!DOCTYPE html>
<html>
<head>
<style>
table {
border-collapse: collapse;
}
table, td, th {
/* border: 1px solid black;*/
/* padding: 5px;*/
text-align: center;
}
th {text-align: left;}
</style>
<body>
<?php
$q = intval($_GET['q']);
//echo $q;
$qry="SELECT * FROM inventory WHERE id = '".$q."'";
$rs=mysql_query($qry);
?>
<?php
while($rw=mysql_fetch_array($rs)){
?>
<table>
<tr>
<td>
<?php echo " ". " ". " ". " ". " " . " ". " ". " " ?>
<?php echo $rw['price']?> <?php echo " ". " " . " " . " " . " ". " ". " ". " ". " ". " ". " ". " "
. " ". " ". " " ?>
<?php echo $rw['batchno'] ?>
<?php echo " ". " " . " " . " " . " ". " ". " ". " ". " ". " ". " ". " "
. " ". " ". " " ?>
<?php echo $rw['expire'] ?>
</td>
</tr>
</table>
<?php
}
?>
</body>
</html>
答案 0 :(得分：0)
详细了解sessions in php。
如果你需要在php文件之间存储一些值，你可以这样做：
<?php
session_start();
$_SESSION['myVariable'] = $_GET['myVariable'];
在另一个php文件中，您可以将以前定义的变量作为：
<?php
session_start();
echo $_SESSION['myVariable'];