{"id":17414,"date":"2024-03-15T14:58:17","date_gmt":"2024-03-15T14:58:17","guid":{"rendered":"https:\/\/www.silicloud.com\/blog\/how-can-php-be-used-to-display-user-information-after-login\/"},"modified":"2024-03-21T10:51:02","modified_gmt":"2024-03-21T10:51:02","slug":"how-can-php-be-used-to-display-user-information-after-login","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/blog\/how-can-php-be-used-to-display-user-information-after-login\/","title":{"rendered":"How can PHP be used to display user information after login?"},"content":{"rendered":"<p>To display user information after logging in PHP, first, the following steps are required:<\/p>\n<ol>\n<li>Create a login page with input fields for username and password, as well as a login button.<\/li>\n<li>After the form on the login page is submitted, the PHP code will receive the form data and proceed with validation. It is possible to verify if the username and password match the data in the database.<\/li>\n<li>If the verification is successful, user information can be stored in the session for use on other pages. For example, the username, user ID, and other information can be stored in the session.<\/li>\n<li>On other pages where user information needs to be displayed, the user information can be retrieved through a session and displayed as needed.<\/li>\n<\/ol>\n<p>Here is a simple example code:<\/p>\n<p>Login page (login.php):<\/p>\n<pre class=\"post-pre\"><code>&lt;!DOCTYPE html&gt;\r\n&lt;html&gt;\r\n&lt;head&gt;\r\n    &lt;title&gt;\u767b\u5f55\u9875\u9762&lt;\/title&gt;\r\n&lt;\/head&gt;\r\n&lt;body&gt;\r\n    &lt;h2&gt;\u767b\u5f55&lt;\/h2&gt;\r\n    &lt;form action=\"login_process.php\" method=\"post\"&gt;\r\n        &lt;label for=\"username\"&gt;\u7528\u6237\u540d\uff1a&lt;\/label&gt;\r\n        &lt;input type=\"text\" name=\"username\" id=\"username\" required&gt;&lt;br&gt;\r\n        &lt;label for=\"password\"&gt;\u5bc6\u7801\uff1a&lt;\/label&gt;\r\n        &lt;input type=\"password\" name=\"password\" id=\"password\" required&gt;&lt;br&gt;\r\n        &lt;input type=\"submit\" value=\"\u767b\u5f55\"&gt;\r\n    &lt;\/form&gt;\r\n&lt;\/body&gt;\r\n&lt;\/html&gt;\r\n<\/code><\/pre>\n<p>Login processing page (login_process.php):<\/p>\n<pre class=\"post-pre\"><code>&lt;?php\r\nsession_start();\r\n\r\n\/\/ \u5047\u8bbe\u6570\u636e\u5e93\u4e2d\u6709\u4e00\u4e2a\u7528\u6237\u8868\uff0c\u5305\u542b\u7528\u6237\u540d\u548c\u5bc6\u7801\u5b57\u6bb5\r\n$users = [\r\n    ['username' =&gt; 'user1', 'password' =&gt; 'pass1'],\r\n    ['username' =&gt; 'user2', 'password' =&gt; 'pass2'],\r\n    ['username' =&gt; 'user3', 'password' =&gt; 'pass3']\r\n];\r\n\r\n$username = $_POST['username'];\r\n$password = $_POST['password'];\r\n\r\n\/\/ \u9a8c\u8bc1\u7528\u6237\u540d\u548c\u5bc6\u7801\u662f\u5426\u5339\u914d\r\n$loggedIn = false;\r\nforeach ($users as $user) {\r\n    if ($user['username'] === $username &amp;&amp; $user['password'] === $password) {\r\n        $loggedIn = true;\r\n        break;\r\n    }\r\n}\r\n\r\nif ($loggedIn) {\r\n    \/\/ \u767b\u5f55\u6210\u529f\uff0c\u5c06\u7528\u6237\u4fe1\u606f\u5b58\u50a8\u5728session\u4e2d\r\n    $_SESSION['username'] = $username;\r\n    $_SESSION['userId'] = 123; \/\/ \u5047\u8bbe\u7528\u6237ID\u4e3a123\r\n\r\n    header('Location: profile.php'); \/\/ \u91cd\u5b9a\u5411\u5230\u7528\u6237\u4fe1\u606f\u9875\u9762\r\n} else {\r\n    \/\/ \u767b\u5f55\u5931\u8d25\uff0c\u8fd4\u56de\u767b\u5f55\u9875\u9762\r\n    header('Location: login.php');\r\n}\r\n?&gt;\r\n<\/code><\/pre>\n<p>Profile Page (profile.php):<\/p>\n<pre class=\"post-pre\"><code>&lt;?php\r\nsession_start();\r\n\r\n\/\/ \u68c0\u67e5\u7528\u6237\u662f\u5426\u5df2\u767b\u5f55\r\nif (!isset($_SESSION['username'])) {\r\n    header('Location: login.php');\r\n    exit();\r\n}\r\n\r\n\/\/ \u83b7\u53d6\u7528\u6237\u4fe1\u606f\r\n$username = $_SESSION['username'];\r\n$userId = $_SESSION['userId'];\r\n\r\n\/\/ \u5c55\u793a\u7528\u6237\u4fe1\u606f\r\necho \"\u7528\u6237\u540d\uff1a$username&lt;br&gt;\";\r\necho \"\u7528\u6237ID\uff1a$userId\";\r\n?&gt;\r\n<\/code><\/pre>\n<p>In this example, when a user enters their username and password on the login page, the form is submitted to the login processing page (login_process.php). On the login processing page, the username and password are verified to match the data in the database. If the verification is successful, the user information is stored in a session and redirected to the user information page (profile.php). On the user information page, the user information is retrieved from the session and displayed. If the user is not logged in or there is no user information stored in the session, they will be redirected back to the login page.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>To display user information after logging in PHP, first, the following steps are required: Create a login page with input fields for username and password, as well as a login button. After the form on the login page is submitted, the PHP code will receive the form data and proceed with validation. It is possible [&hellip;]<\/p>\n","protected":false},"author":10,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_import_markdown_pro_load_document_selector":0,"_import_markdown_pro_submit_text_textarea":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-17414","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>How can PHP be used to display user information after login? - Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/blog\/how-can-php-be-used-to-display-user-information-after-login\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How can PHP be used to display user information after login?\" \/>\n<meta property=\"og:description\" content=\"To display user information after logging in PHP, first, the following steps are required: Create a login page with input fields for username and password, as well as a login button. After the form on the login page is submitted, the PHP code will receive the form data and proceed with validation. It is possible [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/blog\/how-can-php-be-used-to-display-user-information-after-login\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/SiliCloudGlobal\/\" \/>\n<meta property=\"article:published_time\" content=\"2024-03-15T14:58:17+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-03-21T10:51:02+00:00\" \/>\n<meta name=\"author\" content=\"Jackson Davis\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@SiliCloudGlobal\" \/>\n<meta name=\"twitter:site\" content=\"@SiliCloudGlobal\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Jackson Davis\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/how-can-php-be-used-to-display-user-information-after-login\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/how-can-php-be-used-to-display-user-information-after-login\/\"},\"author\":{\"name\":\"Jackson Davis\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/#\/schema\/person\/55a10b8b0457c35884c25677889ad350\"},\"headline\":\"How can PHP be used to display user information after login?\",\"datePublished\":\"2024-03-15T14:58:17+00:00\",\"dateModified\":\"2024-03-21T10:51:02+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/how-can-php-be-used-to-display-user-information-after-login\/\"},\"wordCount\":263,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/#organization\"},\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/how-can-php-be-used-to-display-user-information-after-login\/\",\"url\":\"https:\/\/www.silicloud.com\/blog\/how-can-php-be-used-to-display-user-information-after-login\/\",\"name\":\"How can PHP be used to display user information after login? 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