{"id":19314,"date":"2022-11-06T05:57:38","date_gmt":"2022-11-06T00:27:38","guid":{"rendered":"https:\/\/jassweb.com\/solved\/solved-setting-up-a-log-in-for-a-website-using-php-closed\/"},"modified":"2022-11-06T05:57:38","modified_gmt":"2022-11-06T00:27:38","slug":"solved-setting-up-a-log-in-for-a-website-using-php-closed","status":"publish","type":"post","link":"https:\/\/jassweb.com\/solved\/solved-setting-up-a-log-in-for-a-website-using-php-closed\/","title":{"rendered":"[Solved] Setting up a log-in for a website using PHP [closed]"},"content":{"rendered":"<p> [ad_1]<br \/>\n<\/p>\n<div id=\"answer-33995665\" class=\"answer js-answer accepted-answer js-accepted-answer\" data-answerid=\"33995665\" data-parentid=\"33992971\" data-score=\"0\" data-position-on-page=\"1\" data-highest-scored=\"1\" data-question-has-accepted-highest-score=\"1\" itemprop=\"acceptedAnswer\" itemscope itemtype=\"https:\/\/schema.org\/Answer\">\n<div class=\"post-layout\">\n<div class=\"votecell post-layout--left\"><\/div>\n<div class=\"answercell post-layout--right\">\n<div class=\"s-prose js-post-body\" itemprop=\"text\">\n<p>in a nutshell:<br \/>\nlogin.php<\/p>\n<pre><code>&lt;?php\nsession_start();\nfunction hhb_tohtml($str)\n{\n    return htmlentities($str, ENT_QUOTES | ENT_HTML401 | ENT_SUBSTITUTE | ENT_DISALLOWED, 'UTF-8', true);\n}\n\n$accounts=array(\n\/\/username =&gt;password\n'smith'=&gt;'smell',\n'admin'=&gt;'password',\n'guest'=&gt;'guestpass'\n);\n\nif(array_key_exists('submit',$_POST)){\n    if(!array_key_exists('username',$_POST)){\n        $username=\"\";\n    } else \n    {\n    $username=$_POST['username'];\n    }\n    if(!array_key_exists('password',$_POST)){\n        $password='';\n    }else {\n        $password=$_POST['password'];\n    }\n    if(!array_key_exists($username,$accounts)){\n        die('This username does not exist.');\n    }\n    if($accounts[$username]!==$password){\n        die('wrong password!');\n    }\n    $_SESSION['logged_in']=true;\n    $_SESSION['username']=$username;\n    die('you have logged in as: '.hhb_tohtml($username));\n}\n?&gt;\n&lt;!DOCTYPE html&gt;\n&lt;html&gt;\n&lt;head&gt;&lt;title&gt;&lt;\/title&gt;&lt;\/head&gt;\n&lt;body&gt;\n&lt;form action=\"?\" method=\"post\"&gt;\n  Username: &lt;input type=\"text\" name=\"username\" \/&gt;&lt;br&gt;\n  Password: &lt;input type=\"password\" name=\"password\" \/&gt;&lt;br&gt;\n  &lt;input type=\"submit\" name=\"submit\" value=\"Submit\" \/&gt;\n&lt;\/form&gt;\n&lt;\/body&gt;\n&lt;\/html&gt;\n<\/code><\/pre>\n<p>and in other places, like controlpanel.php:<\/p>\n<pre><code>session_start();\nif(!isset($_SESSION['logged_in'])){die('you need to login first!');}\n<\/code><\/pre>\n<p>the session id will be stored in a cookie, thanks to session_start(), and the server will remember whether or not this session id is logged in.<\/p>\n<\/p><\/div>\n<div class=\"mt24\"><\/div>\n<\/div>\n<p>            <span class=\"d-none\" itemprop=\"commentCount\">7<\/span> <\/p><\/div>\n<\/div>\n<p>[ad_2]<\/p>\n<p>solved Setting up a log-in for a website using PHP [closed] <\/p>\n","protected":false},"excerpt":{"rendered":"<p>[ad_1] in a nutshell: login.php &lt;?php session_start(); function hhb_tohtml($str) { return htmlentities($str, ENT_QUOTES | ENT_HTML401 | ENT_SUBSTITUTE | ENT_DISALLOWED, &#8216;UTF-8&#8217;, true); } $accounts=array( \/\/username =&gt;password &#8216;smith&#8217;=&gt;&#8217;smell&#8217;, &#8216;admin&#8217;=&gt;&#8217;password&#8217;, &#8216;guest&#8217;=&gt;&#8217;guestpass&#8217; ); if(array_key_exists(&#8216;submit&#8217;,$_POST)){ if(!array_key_exists(&#8216;username&#8217;,$_POST)){ $username=&#8221;&#8221;; } else { $username=$_POST[&#8216;username&#8217;]; } if(!array_key_exists(&#8216;password&#8217;,$_POST)){ $password=&#8221;; }else { $password=$_POST[&#8216;password&#8217;]; } if(!array_key_exists($username,$accounts)){ die(&#8216;This username does not exist.&#8217;); } if($accounts[$username]!==$password){ die(&#8216;wrong password!&#8217;); } $_SESSION[&#8216;logged_in&#8217;]=true; &#8230; <a title=\"[Solved] Setting up a log-in for a website using PHP [closed]\" class=\"read-more\" href=\"https:\/\/jassweb.com\/solved\/solved-setting-up-a-log-in-for-a-website-using-php-closed\/\" aria-label=\"More on [Solved] Setting up a log-in for a website using PHP [closed]\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[320],"tags":[346,340,339],"class_list":["post-19314","post","type-post","status-publish","format-standard","hentry","category-solved","tag-html","tag-mysql","tag-php"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>[Solved] Setting up a log-in for a website using PHP [closed] - JassWeb<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/jassweb.com\/solved\/solved-setting-up-a-log-in-for-a-website-using-php-closed\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"[Solved] Setting up a log-in for a website using PHP [closed] - JassWeb\" \/>\n<meta property=\"og:description\" content=\"[ad_1] in a nutshell: login.php &lt;?php session_start(); function hhb_tohtml($str) { return htmlentities($str, ENT_QUOTES | ENT_HTML401 | ENT_SUBSTITUTE | ENT_DISALLOWED, &#039;UTF-8&#039;, true); } $accounts=array( \/\/username =&gt;password &#039;smith&#039;=&gt;&#039;smell&#039;, &#039;admin&#039;=&gt;&#039;password&#039;, &#039;guest&#039;=&gt;&#039;guestpass&#039; ); if(array_key_exists(&#039;submit&#039;,$_POST)){ if(!array_key_exists(&#039;username&#039;,$_POST)){ $username=&quot;&quot;; } else { $username=$_POST[&#039;username&#039;]; } if(!array_key_exists(&#039;password&#039;,$_POST)){ $password=&#039;&#039;; }else { $password=$_POST[&#039;password&#039;]; } if(!array_key_exists($username,$accounts)){ die(&#039;This username does not exist.&#039;); } if($accounts[$username]!==$password){ die(&#039;wrong password!&#039;); } $_SESSION[&#039;logged_in&#039;]=true; ... 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