PHP - 如何保存简单的会话？

Question

我试图在PHP中的会话中保存值(0或1).我在顶部有我的session_start()命令,但我似乎无法使它工作 - 它确实返回保存的数字 - 它保持返回0,因为不保存信息 - 我重置了什么？

的index.php

<?php

# session vars
session_start();
$session_id = session_id();

# set the session 
$sliderNumber=$_SESSION["CurrentSliderPosition"];

# check session
if($sliderNumber=="" || $sliderNumber=="0"){
    echo ' you are saved 0';
} else {
    echo ' saved your session is 1 - even though you have been on other pages';
}

<a href="make-session.php?slidePositionId=1">make 1 the session number</a><br />
<a href="make-session.php?slidePositionId=2">make 2 the session number</a><br />

?>

化妆session.php文件

<?php
# get session number
$sliderNumber=$_REQUEST["slidePositionId"];

# session checker
if($sliderNumber=="0" || $sliderNumber==""){
    $_SESSION["CurrentSliderPosition"]=0;
} else {
    $_SESSION["CurrentSliderPosition"]=$sliderNumber;
}

 //echo $_SESSION["CurrentSliderPosition"];

 # redirect with our saved session
 header("Location: index.php");
?>

Answer 1

你的make-session.php页面没有session_start();,它应该.