我使用会话值增加2个变量与ajax跨页面…我在Page1中使用了session_start,并在第1页中将会话变量初始化为0。在page2中,我根据条件初始化它们。我似乎增加了一次,但没有效果这是我的操作页面
<?php
session_start();
?>
<html>
<body>
<?php
$j=isset($_POST['commit']) && $_POST['commit'];
if($j)
{
$num=rand(0, 100);
?>
<div>
<div id="inner_1">
<?php
if($num<27){
echo "Result:Hit";
$_SESSION['off']=$_SESSION['off']=+1;
echo "Offensive Player:";
if(isset($_SESSION['off'])){echo $_SESSION['off'];}else{echo '0';}
echo "Defensive Player:";
if(isset($_SESSION['on'])){echo $_SESSION['on'];}else{echo '0';}
}
else
{
echo "Result:Miss";
$_SESSION['on']=$_SESSION['on']=+1;
echo "Offensive Player:";
if(isset($_SESSION['off'])){echo $_SESSION['off'];}else{echo '0';}
echo "Defensive Player:";
if(isset($_SESSION['on'])){echo $_SESSION['on'];}else{echo '0';}
} ?>
</div>
</div>
<?php } ?>
</body>
</html>
Page1 <?php
session_start();
$_SESSION['off']=0;
$_SESSION['on']=0;
?>
$_SESSION['on']=$_SESSION['on']=+1;
这应该做什么?将+1
两次赋值给$_SESSION['on']
?
向变量中添加数字,使用:
$_SESSION['on'] += 1;
(对你的$_SESSION['off']
做同样的事情)
这是因为
$_SESSION['off']=$_SESSION['off']=+1;
^
+---unwanted = sign
应该是
$_SESSION['off']=$_SESSION['off']+1;
同样适用于$_SESSION['on']
$_SESSION['off']=+1
表示将值1赋给会话变量
$_SESSION['off']=$_SESSION['off']=+1;
$_SESSION['off'] = $_SESSION['off']+1;
和上面的$_SESSION['on']=$_SESSION['on']=+1;
一样
在HTML页面的第一个php标签中声明会话变量,它应该可以解决您的问题。