The submit.php file processes the form data, validates and sanitizes it, and then stores it in cookies.\n<\/p>\n\n
\n\n\n\n\n \n \n Form Submission Result<\/title>\n<\/head>\n<body> <h1><a href="http://miracleart.cn/">国产av日韩一区二区三区精品,成人性爱视频在线观看,国产,欧美,日韩,一区,www.成色av久久成人,2222eeee成人天堂</a></h1>\n <h1>Form Submission Result<\/h1>\n\n <!-- Show Errors if any -->\n <?php\n if ($error_name) {\n echo \"<p>\n\n\n\n\n<hr>\n\n<h3>\n \n \n Step 3: Viewing Cookie Data (view_cookie.php)\n<\/h3>\n\n<p>This file displays the cookie data stored on the user's browser.<br>\n<\/p>\n\n<pre><!DOCTYPE html>\n<html lang=\"en\">\n<head>\n <meta charset=\"UTF-8\">\n <meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\">\n <title>View Cookie Data<\/title>\n<\/head>\n<body>\n <h1>View Stored Cookie Data<\/h1>\n\n <?php\n if (isset($_COOKIE['name'])) {\n echo \"<p><strong>Name:<\/strong> \" . $_COOKIE['name'] . \"<\/p>\";\n echo \"<p><strong>Age:<\/strong> \" . $_COOKIE['age'] . \"<\/p>\";\n echo \"<p><strong>Email:<\/strong> \" . $_COOKIE['email'] . \"<\/p>\";\n echo \"<p><strong>Website:<\/strong> <a href='\" . $_COOKIE['website'] . \"' target='_blank'>\" . $_COOKIE['website'] . \"<\/a><\/p>\";\n echo \"<p><strong>Gender:<\/strong> \" . $_COOKIE['gender'] . \"<\/p>\";\n echo \"<p><strong>Hobbies:<\/strong> \" . $_COOKIE['hobbies'] . \"<\/p>\";\n echo \"<p><strong>Comments:<\/strong> \" . $_COOKIE['comments'] . \"<\/p>\";\n } else {\n echo \"<p>No cookie data found!<\/p>\";\n }\n ?>\n\n <br><br>\n <a href=\"index.php\">Go Back<\/a>\n<\/body>\n<\/html>\n<\/pre>\n\n\n\n\n<hr>\n\n<h3>\n \n \n Step 4: Deleting Cookie Data (delete_cookie.php)\n<\/h3>\n\n<p>This file deletes the cookies by setting their expiration time to the past.<br>\n<\/p>\n\n<pre><?php\n\/\/ Deleting cookies by setting their expiration time to past\nsetcookie(\"name\", \"\", time() - 3600, \"\/\");\nsetcookie(\"age\", \"\", time() - 3600, \"\/\");\nsetcookie(\"email\", \"\", time() - 3600, \"\/\");\nsetcookie(\"website\", \"\", time() - 3600, \"\/\");\nsetcookie(\"gender\", \"\", time() - 3600, \"\/\");\nsetcookie(\"hobbies\", \"\", time() - 3600, \"\/\");\nsetcookie(\"comments\", \"\", time() - 3600, \"\/\");\n?>\n\n<!DOCTYPE html>\n<html lang=\"en\">\n<head>\n <meta charset=\"UTF-8\">\n <meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\">\n <title>Cookie Deleted<\/title>\n<\/head>\n<body>\n <h1>Cookies Deleted<\/h1>\n <p>All cookies have been deleted successfully.<\/p>\n <br><br>\n <a href=\"index.php\">Go Back<\/a>\n<\/body>\n<\/html>\n<\/pre>\n\n\n\n\n<hr>\n\n<h2>\n \n \n Conclusion\n<\/h2>\n\n<p>This project demonstrates how to use cookies for form handling in PHP. By implementing cookies, you can persist user data and improve the functionality of your web applications. Experiment with this project and explore more advanced use cases for cookies in PHP. <\/p>\n\n<p>Happy coding! ?<\/p>\n\n\n \n\n \n <\/pre>"} </script> <meta http-equiv="Cache-Control" content="no-transform" /> <meta http-equiv="Cache-Control" content="no-siteapp" /> <script>var V_PATH="/";window.onerror=function(){ return true; };</script> </head> <body data-commit-time="2023-12-28T14:50:12+08:00" class="editor_body body2_2"> <link rel="stylesheet" type="text/css" href="/static/csshw/stylehw.css"> <header> <div id="377j5v51b" class="head"> <div id="377j5v51b" class="haed_left"> <div id="377j5v51b" class="haed_logo"> <a href="http://miracleart.cn/" title="" class="haed_logo_a"> <img src="/static/imghw/logo.png" alt="" class="haed_logoimg"> </a> </div> <div id="377j5v51b" class="head_nav"> <div id="377j5v51b" class="head_navs"> <a href="javascript:;" title="Community" class="head_nava head_nava-template1">Community</a> <div class="377j5v51b" id="dropdown-template1" style="display: 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Guide to PHP Form Handling with Cookies</span> </div> <div id="377j5v51b" class="Articlelist_txts"> <div id="377j5v51b" class="Articlelist_txts_info"> <h1 class="Articlelist_txts_title">Beginner&#s Guide to PHP Form Handling with Cookies</h1> <div id="377j5v51b" class="Articlelist_txts_info_head"> <div id="377j5v51b" class="author_info"> <a href="http://miracleart.cn/member/1246273.html" class="author_avatar"> <img class="lazy" data-src="https://img.php.cn/upload/avatar/001/246/273/647834461a95f136.jpg" src="/static/imghw/default1.png" alt="DDD"> </a> <div id="377j5v51b" class="author_detail"> <a href="http://miracleart.cn/member/1246273.html" class="author_name">DDD</a> </div> </div> </div> <span id="377j5v51b" class="Articlelist_txts_time">Dec 01, 2024 am 03:13 AM</span> </div> </div> <hr /> <div id="377j5v51b" class="article_main php-article"> <div id="377j5v51b" class="article-list-left detail-content-wrap content"> <ins class="adsbygoogle" style="display:block; text-align:center;" data-ad-layout="in-article" data-ad-format="fluid" data-ad-client="ca-pub-5902227090019525" data-ad-slot="3461856641"> </ins> <p><img src="/static/imghw/default1.png" data-src="https://img.php.cn/upload/article/000/000/000/173299400052755.jpg" class="lazy" alt="Beginner"></p> <p>In this guide, we'll explore PHP form handling using cookies to store user data. Cookies are a way to persist small amounts of data on the user's browser, making it possible to remember user preferences or information across different sessions.</p> <p>Our project involves creating a form where users can input their information, storing the submitted data in cookies, and then viewing or deleting the cookie data. By the end of this tutorial, you'll understand how to set, retrieve, and delete cookies in PHP.</p> <hr> <h2> What Are Cookies? </h2> <p>Cookies are small files stored on the user's browser. They allow web servers to store data specific to a user and retrieve it on subsequent visits. In PHP, you can work with cookies using the setcookie() function to create or update cookies and the $_COOKIE superglobal to read them.</p> <hr> <h2> The Project: PHP Form with Cookie Handling </h2> <p>We'll create a simple application that:</p> <ol> <li>Allows users to submit their information via a form.</li> <li>Stores the submitted data in cookies.</li> <li>Displays the stored cookie data.</li> <li>Provides an option to delete the cookies.</li> </ol> <hr> <h3> File Structure </h3> <p>Our project includes the following files:<br> </p> <pre class="brush:php;toolbar:false">project-folder/ │ ├── index.php # Form page ├── submit.php # Form handling and cookie storage ├── view_cookie.php # Viewing cookie data ├── delete_cookie.php # Deleting cookie data </pre> <hr> <h3> Step 1: Creating the Form (index.php) </h3> <p>The index.php file contains the HTML form for user input, along with buttons to view or delete cookie data.<br> </p> <pre class="brush:php;toolbar:false"><!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>PHP Form with Cookie Handling</title> </head> <body> <h1>Submit Your Information</h1> <!-- Form Section for User Input --> <form method="get" action="submit.php"> <label for="name">Name:</label><br> <input type="text"> <hr> <h3> Step 2: Handling Form Submission (submit.php) </h3> <p>The submit.php file processes the form data, validates and sanitizes it, and then stores it in cookies.<br> </p> <pre class="brush:php;toolbar:false"><?php // Initialize error messages and data variables $error_name = ""; $error_age = ""; $error_email = ""; $error_website = ""; $name = $age = $email = $website = $gender = $comments = $hobbies = ""; // Sanitize and validate the form data if ($_SERVER["REQUEST_METHOD"] == "GET") { // Sanitize inputs $name = htmlspecialchars(trim($_GET['name'])); $age = htmlspecialchars(trim($_GET['age'])); $email = htmlspecialchars(trim($_GET['email'])); $website = htmlspecialchars(trim($_GET['website'])); $gender = isset($_GET['gender']) ? $_GET['gender'] : ''; $hobbies = isset($_GET['hobbies']) ? $_GET['hobbies'] : []; $comments = htmlspecialchars(trim($_GET['comments'])); // Validation checks if (empty($name)) { $error_name = "Name is required."; } if (empty($age) || !filter_var($age, FILTER_VALIDATE_INT) || $age <= 0) { $error_age = "Valid age is required."; } if (empty($email) || !filter_var($email, FILTER_VALIDATE_EMAIL)) { $error_email = "Valid email is required."; } if (empty($website) || !filter_var($website, FILTER_VALIDATE_URL)) { $error_website = "Valid website URL is required."; } // If no errors, set cookies if (empty($error_name) && empty($error_age) && empty($error_email) && empty($error_website)) { // Set cookies for the form data setcookie("name", $name, time() + (86400 * 30), "/"); setcookie("age", $age, time() + (86400 * 30), "/"); setcookie("email", $email, time() + (86400 * 30), "/"); setcookie("website", $website, time() + (86400 * 30), "/"); setcookie("gender", $gender, time() + (86400 * 30), "/"); setcookie("hobbies", implode(", ", $hobbies), time() + (86400 * 30), "/"); setcookie("comments", $comments, time() + (86400 * 30), "/"); } } ?> <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Form Submission Result</title> </head> <body> <h1>Form Submission Result</h1> <!-- Show Errors if any --> <?php if ($error_name) { echo "<p> <hr> <h3> Step 3: Viewing Cookie Data (view_cookie.php) </h3> <p>This file displays the cookie data stored on the user's browser.<br> </p> <pre class="brush:php;toolbar:false"><!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>View Cookie Data</title> </head> <body> <h1>View Stored Cookie Data</h1> <?php if (isset($_COOKIE['name'])) { echo "<p><strong>Name:</strong> " . $_COOKIE['name'] . "</p>"; echo "<p><strong>Age:</strong> " . $_COOKIE['age'] . "</p>"; echo "<p><strong>Email:</strong> " . $_COOKIE['email'] . "</p>"; echo "<p><strong>Website:</strong> <a href='" . $_COOKIE['website'] . "' target='_blank'>" . $_COOKIE['website'] . "</a></p>"; echo "<p><strong>Gender:</strong> " . $_COOKIE['gender'] . "</p>"; echo "<p><strong>Hobbies:</strong> " . $_COOKIE['hobbies'] . "</p>"; echo "<p><strong>Comments:</strong> " . $_COOKIE['comments'] . "</p>"; } else { echo "<p>No cookie data found!</p>"; } ?> <br><br> <a href="index.php">Go Back</a> </body> </html> </pre> <hr> <h3> Step 4: Deleting Cookie Data (delete_cookie.php) </h3> <p>This file deletes the cookies by setting their expiration time to the past.<br> </p> <pre class="brush:php;toolbar:false"><?php // Deleting cookies by setting their expiration time to past setcookie("name", "", time() - 3600, "/"); setcookie("age", "", time() - 3600, "/"); setcookie("email", "", time() - 3600, "/"); setcookie("website", "", time() - 3600, "/"); setcookie("gender", "", time() - 3600, "/"); setcookie("hobbies", "", time() - 3600, "/"); setcookie("comments", "", time() - 3600, "/"); ?> <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Cookie Deleted</title> </head> <body> <h1>Cookies Deleted</h1> <p>All cookies have been deleted successfully.</p> <br><br> <a href="index.php">Go Back</a> </body> </html> </pre> <hr> <h2> Conclusion </h2> <p>This project demonstrates how to use cookies for form handling in PHP. By implementing cookies, you can persist user data and improve the functionality of your web applications. Experiment with this project and explore more advanced use cases for cookies in PHP. </p> <p>Happy coding! ?</p> </pre><p>The above is the detailed content of Beginner&#s Guide to PHP Form Handling with Cookies. For more information, please follow other related articles on the PHP Chinese website!</p> </div> </div> <div id="377j5v51b" class="wzconShengming_sp"> <div id="377j5v51b" class="bzsmdiv_sp">Statement of this Website</div> <div>The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. 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