{"id":3051,"date":"2025-03-20T23:56:28","date_gmt":"2025-03-20T15:56:28","guid":{"rendered":"https:\/\/www.laixuexila.com\/?p=3051"},"modified":"2025-03-20T23:56:28","modified_gmt":"2025-03-20T15:56:28","slug":"php-cookie-%e5%85%a8%e9%9d%a2%e8%af%a6%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/www.laixuexila.com\/index.php\/2025\/03\/20\/php-cookie-%e5%85%a8%e9%9d%a2%e8%af%a6%e8%a7%a3\/","title":{"rendered":"PHP Cookie \u5168\u9762\u8be6\u89e3"},"content":{"rendered":"\n

1. \u4ec0\u4e48\u662f Cookie\uff1f<\/h2>\n\n\n\n

Cookie \u662f\u5b58\u50a8\u5728\u7528\u6237\u6d4f\u89c8\u5668\u4e2d\u7684\u5c0f\u578b\u6587\u672c\u6570\u636e\uff0c\u901a\u5e38\u7528\u4e8e\u4fdd\u5b58\u7528\u6237\u4f1a\u8bdd\u4fe1\u606f\u3001\u504f\u597d\u8bbe\u7f6e\u3001\u8ddf\u8e2a\u7528\u6237\u884c\u4e3a\u7b49\u3002PHP \u63d0\u4f9b\u4e86\u5185\u7f6e\u7684 setcookie()<\/code> \u51fd\u6570\u6765\u64cd\u4f5c Cookie\u3002<\/p>\n\n\n\n

\n\n\n\n

2. \u8bbe\u7f6e Cookie<\/h2>\n\n\n\n

PHP \u4f7f\u7528 setcookie()<\/code> \u51fd\u6570\u6765\u521b\u5efa Cookie\uff1a<\/p>\n\n\n\n

setcookie(name, value, expire, path, domain, secure, httponly);<\/code><\/pre>\n\n\n\n
\u53c2\u6570\u8bf4\u660e\uff1a<\/h4>\n\n\n\n
\u53c2\u6570<\/th>\u8bf4\u660e<\/th><\/tr><\/thead>
name<\/code><\/td>Cookie \u540d\u79f0<\/td><\/tr>
value<\/code><\/td>Cookie \u503c<\/td><\/tr>
expire<\/code><\/td>\u8fc7\u671f\u65f6\u95f4\uff08Unix \u65f6\u95f4\u6233\uff0ctime() + \u79d2\u6570<\/code>\uff09<\/td><\/tr>
path<\/code><\/td>\u9002\u7528\u8def\u5f84\uff08\/<\/code> \u8868\u793a\u6574\u4e2a\u7f51\u7ad9\uff09<\/td><\/tr>
domain<\/code><\/td>\u9002\u7528\u57df\u540d\uff08.example.com<\/code> \u9002\u7528\u4e8e\u6240\u6709\u5b50\u57df\uff09<\/td><\/tr>
secure<\/code><\/td>true<\/code> \u4ec5\u5728 HTTPS \u8fde\u63a5\u4e0b\u4f20\u8f93<\/td><\/tr>
httponly<\/code><\/td>true<\/code> \u9632\u6b62 JavaScript \u8bbf\u95ee\uff08\u9632\u8303 XSS \u653b\u51fb\uff09<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
\u793a\u4f8b\uff1a\u8bbe\u7f6e\u4e00\u4e2a 1 \u5c0f\u65f6\u540e\u8fc7\u671f\u7684 Cookie<\/h3>\n\n\n\n
setcookie(\"user\", \"JohnDoe\", time() + 3600, \"\/\");<\/code><\/pre>\n\n\n\n
\n\n\n\n
3. \u8bfb\u53d6 Cookie<\/h2>\n\n\n\n
PHP \u901a\u8fc7 $_COOKIE<\/code> \u8d85\u5168\u5c40\u6570\u7ec4\u8bbf\u95ee Cookie\uff1a<\/p>\n\n\n\n
if (isset($_COOKIE['user'])) {\n    echo \"Hello, \" . $_COOKIE['user'];\n} else {\n    echo \"Cookie \u672a\u8bbe\u7f6e\";\n}<\/code><\/pre>\n\n\n\n
\n\n\n\n
4. \u5220\u9664 Cookie<\/h2>\n\n\n\n
\u8981\u5220\u9664 Cookie\uff0c\u53ef\u4ee5\u5c06 setcookie()<\/code> \u7684 expire<\/code> \u53c2\u6570\u8bbe\u4e3a\u8fc7\u53bb\u7684\u65f6\u95f4\uff1a<\/p>\n\n\n\n
setcookie(\"user\", \"\", time() - 3600, \"\/\");<\/code><\/pre>\n\n\n\n
\n\n\n\n
5. Cookie \u5b89\u5168\u6027<\/h2>\n\n\n\n
\u4e3a\u4e86\u63d0\u9ad8 Cookie \u7684\u5b89\u5168\u6027\uff0c\u5efa\u8bae\uff1a<\/p>\n\n\n\n
    \n
  1. \u4f7f\u7528 secure<\/code> \u53c2\u6570<\/strong>\uff1a\u5728 HTTPS \u7ad9\u70b9\u4e0a\u8bbe\u7f6e setcookie()<\/code> \u7684 secure=true<\/code>\uff0c\u9632\u6b62\u660e\u6587\u4f20\u8f93\uff1a<\/li>\n<\/ol>\n\n\n\n
       setcookie(\"user\", \"JohnDoe\", time() + 3600, \"\/\", \"\", true, true);<\/code><\/pre>\n\n\n\n
      \n
    1. \u4f7f\u7528 httponly<\/code> \u53c2\u6570<\/strong>\uff1a\u9632\u6b62 JavaScript \u8bbf\u95ee\uff0c\u9632\u8303 XSS \u653b\u51fb\uff1a<\/li>\n<\/ol>\n\n\n\n
         setcookie(\"user\", \"JohnDoe\", time() + 3600, \"\/\", \"\", false, true);<\/code><\/pre>\n\n\n\n
        \n
      1. \u4f7f\u7528 SameSite<\/code> \u4fdd\u62a4<\/strong>\uff08PHP 7.3+ \u652f\u6301\uff09\uff1a<\/li>\n<\/ol>\n\n\n\n
           setcookie(\"user\", \"JohnDoe\", [\n       'expires' => time() + 3600,\n       'path' => '\/',\n       'secure' => true,\n       'httponly' => true,\n       'samesite' => 'Strict' \/\/ 'Lax' \u6216 'Strict'\n   ]);<\/code><\/pre>\n\n\n\n
        \n\n\n\n
        6. Cookie \u4e0e Session \u7684\u533a\u522b<\/h2>\n\n\n\n
        \u5bf9\u6bd4\u9879<\/th>Cookie<\/th>Session<\/th><\/tr><\/thead>
        \u5b58\u50a8\u4f4d\u7f6e<\/td>\u5ba2\u6237\u7aef\u6d4f\u89c8\u5668<\/td>\u670d\u52a1\u5668\u7aef<\/td><\/tr>
        \u9002\u7528\u8303\u56f4<\/td>\u8de8\u591a\u4e2a\u9875\u9762\u6301\u4e45\u5b58\u50a8<\/td>\u4ec5\u9650\u5f53\u524d\u4f1a\u8bdd<\/td><\/tr>
        \u751f\u547d\u5468\u671f<\/td>\u53ef\u8bbe\u7f6e\u8fc7\u671f\u65f6\u95f4<\/td>\u9ed8\u8ba4\u4f1a\u8bdd\u5173\u95ed\u540e\u9500\u6bc1<\/td><\/tr>
        \u5b89\u5168\u6027<\/td>\u6613\u88ab\u7be1\u6539<\/td>\u66f4\u5b89\u5168<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
        \u5982\u679c\u6d89\u53ca\u7528\u6237\u8eab\u4efd\u9a8c\u8bc1\uff0c\u5efa\u8bae\u4f7f\u7528 Session<\/strong> \u800c\u975e Cookie\u3002<\/p>\n\n\n\n
        \n\n\n\n
        7. \u5e38\u89c1\u95ee\u9898<\/h2>\n\n\n\n
        Q1: \u4e3a\u4ec0\u4e48 setcookie()<\/code> \u6ca1\u6709\u751f\u6548\uff1f<\/strong><\/p>\n\n\n\n