PHP开发实践-页面传值

页面间传值

SESSION会话

<?php
    session_start();
    $taskId = mt_rand();
    $_SESSION['val']=  $taskId;
    echo $_SESSION['val'];
?>

<?php
    session_start();
    echo $_SESSION['val'];    //直接输出全局变量val.
?>

COOKIE

 <?php
//name存储的键名
//value存储的键值
//expire存储的超时时间
//path存储的位置
//domain存储区别的域名
setcookie(name, value, expire, path, domain);
 setcookie("user", "SUVLLIAN", time()+3600);
    //创建一个名为user的cookie变量，它的值是Alex Porter。它将在一个小时以后过期，也就是不能访问了
?>

<?php
    echo $_COOKIE['user'];    //还要刷新一下页面才可以生效
?>

表单提交

<form name="form1" method="post" action="2.php">
  <input type="text" name="val" />
  <input type="submit" name="Submit" value="提交" />
</form>

<?php
    echo $_POST['val'];
?>

页面跳转时携带参数传值

<?php
    $a = "world";
?>
<a href="b.php?m=$a">点我跳到b.php</a>


<?php
    echo "hello".$_GET['m'];
?>

JS传值

<?php
        $taskId = mt_rand();
 ?>
<script type="text/javascript">
         var test=window.parent.document.getElementById("h5Mifangdate");
        url=test.src="a.php?taskId=<?php echo  $taskId; ?>";
        console.log(url);
</script>

<?php
        echo "hello".$_GET['taskId'];
 ?>