如何删除多步变量会话数组

Question

我使用以下方法来消除多个步骤的会话，甚至是单独的变量。if($payment === 'Completed'){    session_start();    unset($_SESSION['datos_form']);    unset($_SESSION['__step__']);    unset($_SESSION['formid']);    unset($_SESSION['sPaso']);    unset($_SESSION['Pending']);    unset($_SESSION['p']);    unset($_SESSION['step']);    unset($step);}但是unset功能的使用并没有消除步骤我保存步骤的 PHP 文件<?php    session_start();    $step =  isset($_GET['step']) ?  $_GET['step'] : 1;    $_SESSION['datos_form'] = $_POST;    $datosForm = (isset($_SESSION['datos_form']) && is_array($_SESSION['datos_form'])) ? $_SESSION['datos_form'] :array();    $sPaso = isset($datosForm['__step__']) ? $datosForm['__step__'] : 1;    $step = isset($step) ? $step : $sPaso;    $_SESSION['datos_form']['__step__'] = $step;    header('Content-Type: application/json');    $json =  array(        'radio'     => $radio,        'step'      => $step    );    echo json_encode($json);?>我已经执行 avar_dump ($ _ SESSION);和 aprint_r ($ GLOBALS);获得以下信息：[_SESSION] => Array    (        [datos_form] => Array            (                [__step__] => 3            )        [4b228aaae2a6a7ce403bc4ecbc481de6] => ../libro.pdf        [cart] => Array            (                [0] => 11            )        [qty] => Array            (                [0] => 1            )        [formid] => 64da7c62c643f40684f573acffb144eba6bfaf63        [id_user] => 1    ))使用var_dump：array(6) { ["datos_form"]=> array(1) { ["__step__"]=> string(1) "3" }当我转到第 1 步时，将获得以下更改[__step__] => 1 string(1) "1"：[datos_form] => Array    (        [__step__] => 1    )array(6) { ["datos_form"]=> array(1) { ["__step__"]=> string(1) "1" }当我进入第 2 步时，获得以下更改[__step__] => 2 string(1) "2"：[datos_form] => Array    (        [__step__] => 2    )array(6) { ["datos_form"]=> array(1) { ["__step__"]=> string(1) "2" }

Answer 1

您__step__作为 的直系后裔令人不安，$_SESSION但它是 的孩子$_SESSION[datos_form]

要取消设置，您需要 unset($_SESSION[datos_form][__step__]);