Question

我试图在登录后显示用户名，但我不知道该怎么做.. 这是我的登录表单..

<!DOCTYPE html>
<html>
<head>
<link rel="stylesheet" type="text/css" href="simplestyle.css">
</head>
<body>
<div class="divOne">
    <h1>Login</h1>

    <form action="simple2.php" method="post">
        <table style="width:60%">
            <tr>
                <td class="colm1"><b>Name:</b></td>
                <td class="colm2"><input type="text" name="username"></td>
            </tr>
            <tr>
                <td class="colm1"><b>Password:</b></td>
                <td class="colm2"><input type="password" name="password"></td>
            </tr>
            </table><br>
        <input type="submit" name="login" value="Post!" class="buttonLog"> <br />
    </form>
</div><br>

    </body>
    </html>

这是我登录的连接..我将php文件命名为simple2.php

<?php
session_start();
if (isset($_POST['login'])){
    $_SESSION['uname'] = 'username';
    $filename = "accounts.txt";
    $uname=$_POST['username'];
    $pwd=$_POST['password'];
    $admin= 'hanna';
    $adminPass= '2302';
    if (file_exists($filename)) {

        $handle = fopen($filename, "r");
        $contents = fread($handle, filesize($filename));
        $contents = file_get_contents($filename);
        $contents = explode("\n", $contents);

    if ($uname == $admin && $pwd == $adminPass){
        header('Location: hometry.php');

    }
    elseif ($uname == $uname && $pwd == $uname) {
        echo "member";
    }

    else{
        echo "Username and Password is not registered!";
    }
 }
}

fclose($handle);
?>

登录后，我希望用户名显示在主页上，但我不知道该怎么做。有人能帮助我吗？

Answer 1

因为你在simple2.php中分配了$ _SESSION ['uname'] ='username'，然后在hometry.php中使用

调用变量

<?php
session_start();
$uname = $_SESSION['uname'];
?>

但是从您的代码中，您需要输入

$uname=$_POST['username'];

前

$_SESSION['uname'] = 'username';

并将$ uname分配给$ _SESSION ['uname']否则它将始终显示'username' 或者您可以将用户名作为URL变量传递

header('Location: hometry.php?uname='.$uname);

因此修改后的代码对于选项1

将如下所示

<?php
session_start();
if (isset($_POST['login'])){
    $filename = "accounts.txt";
    $uname=$_POST['username'];
    $_SESSION['uname'] = $uname;
    $pwd=$_POST['password'];
    $admin= 'hanna';
    $adminPass= '2302';
    if (file_exists($filename)) {

        $handle = fopen($filename, "r");
        $contents = fread($handle, filesize($filename));
        $contents = file_get_contents($filename);
        $contents = explode("\n", $contents);

    if ($uname == $admin && $pwd == $adminPass){
        header('Location: hometry.php');

    }
    elseif ($uname == $uname && $pwd == $uname) {
        echo "member";
    }

    else{
        echo "Username and Password is not registered!";
    }
 }
}

fclose($handle);
?>

和选项2

<?php
session_start();
if (isset($_POST['login'])){
    $filename = "accounts.txt";
    $uname=$_POST['username'];
    $pwd=$_POST['password'];
    $admin= 'hanna';
    $adminPass= '2302';
    if (file_exists($filename)) {

        $handle = fopen($filename, "r");
        $contents = fread($handle, filesize($filename));
        $contents = file_get_contents($filename);
        $contents = explode("\n", $contents);

    if ($uname == $admin && $pwd == $adminPass){
        header('Location: hometry.php?uname='.$uname);

    }
    elseif ($uname == $uname && $pwd == $uname) {
        echo "member";
    }

    else{
        echo "Username and Password is not registered!";
    }
 }
}

fclose($handle);
?>

Answer 2

在您检查用户是否在您的accounts.txt文件中之后，立即将用户名放入会话中。

import React, { Component } from 'react';
import ReactDOM from 'react-dom';

import { ApolloProvider } from 'react-apollo';
import { ApolloClient } from 'apollo-client';
import { SchemaLink } from "apollo-link-schema";
import { InMemoryCache } from 'apollo-cache-inmemory';
import { ApolloCache } from 'apollo-cache';

import gql from 'graphql-tag';
import { graphql } from 'react-apollo';

import { MockedProvider } from 'react-apollo/test-utils';

import { makeExecutableSchema, addMockFunctionsToSchema, MockList } from 'graphql-tools';
const typeDefs = `
type Query {
  me: Person!
}

type Person {
    name: String!
}
`;
const schema = makeExecutableSchema({ typeDefs });
addMockFunctionsToSchema({ schema });

const schemaLink = new SchemaLink(schema);
const client = new ApolloClient({
    link: schemaLink,
    cache: new InMemoryCache()
});

class App extends Component {
  render() {
        if (this.props.query && this.props.query.loading) {
            return <div>Loading...</div>
        }

        if (this.props.query && this.props.query.error) {
            return <div>Error: {this.props.query.error.message}</div>
        }

        const person = this.props.query.me;
        return <div> {person.name} </div>
  }
}

const personQuery = gql`
    query PersonQuery {
        me {
            __typename
            name
        }
    }
`;
const personQueryMockedData = {
    me: {
        __typename: 'String',
        name: 'Gabe'
    }
}


App = graphql(personQuery, { name: 'query' })(App);

ReactDOM.render(
    <MockedProvider mocks={
        [
            { 
                request: { query: personQuery, variables: { cache: false } },
                result: { data: personQueryMockedData }
            }
        ]
    }>
        < App />
    </MockedProvider>
    , document.getElementById('root')
);

在你的homepage.php中调用用户名：

$_SESSION['uname'] = $uname;

登录后显示用户名

2 个答案: