I have a game that I am in the process of updating. Originally it passed scores in with the URL, but I decided to update it so that the scores are not visible. My first thought was to use session variables, but since I want to change the scores in response to calculations that are done in JavaScript, that isn\u2019t feasible. A better way is to use cookies. When I first enter a page, I set or get the cookies with PHP. I want the game levels to persist from visit to visit but the scores are only kept for the session.
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\n\/\/ Initialize the cookies with PHP. Keep the group and level around but make the scoring session cookies\n\/\/ If the cookie is set by the code, it is not available until the next page load\n$cookie_name = "VPA_group";\n$cookie_value = "MW1";\nif( !isset($_COOKIE[$cookie_name]) ) {\n setcookie($cookie_name,$cookie_value,$cookie_time,$cookie_path,$cookie_domain,$cookie_secure,$cookie_httponly);\n}\n$group = isset($_COOKIE["VPA_group"]) ? $_COOKIE["VPA_group"] : $cookie_value;\n\n$cookie_name = "VPA_WFF";\n$cookie_value = "Wide";\nif( !isset($_COOKIE[$cookie_name]) ) {\n setcookie($cookie_name,$cookie_value,$cookie_time,$cookie_path,$cookie_domain,$cookie_secure,$cookie_httponly);\n}\n$WFF = isset($_COOKIE["VPA_WFF"]) ? $_COOKIE["VPA_WFF"] : $cookie_value;\n\n$cookie_name = "VPA_cor";\n$cookie_value = 0;\nif( !isset($_COOKIE[$cookie_name]) ) {\n setcookie($cookie_name,$cookie_value);\n}\n$cor = isset($_COOKIE["VPA_cor"]) ? $_COOKIE["VPA_cor"] : $cookie_value;\n\n$cookie_name = "VPA_inc";\n$cookie_value = 0;\nif( !isset($_COOKIE[$cookie_name]) ) {\n setcookie($cookie_name,$cookie_value);\n}\n$inc = isset($_COOKIE["VPA_inc"]) ? $_COOKIE["VPA_inc"] : $cookie_value;\n\n$cookie_name = "VPA_screen";\n$cookie_value = 0;\nif( !isset($_COOKIE[$cookie_name]) ) {\n setcookie($cookie_name,$cookie_value);\n}\n$screen = isset($_COOKIE["VPA_screen"]) ? $_COOKIE["VPA_screen"] : $cookie_value;<\/code><\/pre><\/p>\nOnce I have the values, I need to let JavaScript know what they are.
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\n<script>\n <?php\n echo "var cor = $cor;\\n";\n echo "var inc = $inc;\\n";\n echo "var screen = $screen;\\n";\n\n echo "var group = \\"$group\\";\\n";\n echo "var WFF = \\"$WFF\\";\\n";\n echo "var cookie_days = \\"$cookie_days\\";\\n";\n ?>\n<\/script><\/code><\/pre><\/p>\nThen I can use JavaScript to change them, as I described in the previous post.
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\nfunction goNext() {\n setCookie('VPA_cor',cor,'N');\n setCookie('VPA_inc',inc,'N');\n setCookie('VPA_screen',screen,'N');\n window.location="ThisGame.php";\n}\n\nfunction changeLevel(cookieName, cookieValue) {\n cor = 0;\n inc = 0;\n screen = 0;\n setCookie('VPA_cor',cor,'N');\n setCookie('VPA_inc',inc,'N');\n setCookie('VPA_screen',screen,'N');\n setCookie(cookieName, cookieValue, 'Y');\n}\n\nfunction setCookie(cname, cvalue, set_time) {\n var expires = '';\n if ( set_time == 'Y' ) {\n var d = new Date();\n d.setTime(d.getTime() + (cookie_days*24*60*60*1000));\n expires = "expires="+d.toUTCString();\n }\n \/\/alert('cname ' + cname + 'group ' + cvalue + 'time ' + expires);\n document.cookie = cname + "=" + cvalue + "; " + expires;\n}\n<\/script><\/code><\/pre> <\/p>\n","protected":false},"excerpt":{"rendered":"I have a game that I am in the process of updating. Originally it passed scores in with the URL, but I decided to update it so that the scores are not visible. My first thought was to use session variables, but since I want to change the scores in response to calculations that are … Continue reading Browser Cookies with PHP and JavaScript<\/span><\/a><\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[28],"tags":[],"class_list":["post-2366","post","type-post","status-publish","format-standard","hentry","category-html-and-css"],"_links":{"self":[{"href":"https:\/\/www.wellgolly.com\/index.php?rest_route=\/wp\/v2\/posts\/2366","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.wellgolly.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.wellgolly.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.wellgolly.com\/index.php?rest_route=\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/www.wellgolly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2366"}],"version-history":[{"count":0,"href":"https:\/\/www.wellgolly.com\/index.php?rest_route=\/wp\/v2\/posts\/2366\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.wellgolly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2366"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.wellgolly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2366"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.wellgolly.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2366"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}