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\n2\u3001Session\u5e38\u89c1\u51fd\u6570\u53ca\u7528\u6cd5\uff1f<\/strong>
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\nWarning: Cannot send session cache limiter – headers already sent (output started at \/usr\/local\/apache\/htdocs\/cga\/member\/1.php:2)\u2026\u2026\u2026\u2026
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\n\u8bf7\u6c42\u7ed3\u675f\u540e\u6240\u6709\u6ce8\u518c\u7684\u53d8\u91cf\u90fd\u4f1a\u88ab\u5e8f\u5217\u5316\u3002\u5df2\u6ce8\u518c\u4f46\u672a\u5b9a\u4e49\u7684\u53d8\u91cf\u88ab\u6807\u8bb0\u4e3a\u672a\u5b9a\u4e49\u3002\u5728\u4e4b\u540e\u7684\u8bbf\u95ee\u4e2d\u8fd9\u4e9b\u53d8\u91cf\u4e5f\u672a\u88ab\u4f1a\u8bdd\u6a21\u5757\u5b9a\u4e49\uff0c\u9664\u975e\u7528\u6237\u4ee5\u540e\u5b9a\u4e49\u5b83\u4eec\u3002
\n\u8b66\u544a: \u6709\u4e9b\u7c7b\u578b\u7684\u6570\u636e\u4e0d\u80fd\u88ab\u5e8f\u5217\u5316\u56e0\u6b64\u4e5f\u5c31\u4e0d\u80fd\u4fdd\u5b58\u5728\u4f1a\u8bdd\u4e2d\u3002\u5305\u62ec resource \u53d8\u91cf\u6216\u8005\u6709\u5faa\u73af\u5f15\u7528\u7684\u5bf9\u8c61\uff08\u5373\u67d0\u5bf9\u8c61\u5c06\u4e00\u4e2a\u6307\u5411\u81ea\u5df1\u7684\u5f15\u7528\u4f20\u9012\u7ed9\u53e6\u4e00\u4e2a\u5bf9\u8c61\uff09\u3002
\n\u25cf \u6ce8\u518cSESSION\u53d8\u91cf \uff1a<\/span><\/strong>
\n<\/span>PHP5\u4f7f\u7528$_SESSION[\u2018xxx\u2019]=xxx\u6ce8\u518cSESSION\u5168\u5c40\u53d8\u91cf\u3002\u548cGET\uff0cPOST\uff0cCOOKIE\u7684\u4f7f\u7528\u65b9\u6cd5\u76f8\u4f3c\u3002
\n\u00a0\u00a0\u00a0\u6ce8\u610f\uff1asession_register()\uff0csession_unregister \uff0csession_is_registered\u5728php5\u4e0b\u4e0d\u518d\u4f7f\u7528\uff0c\u9664\u975e\u5728php.ini\u91cc\u628aregister_globle\u8bbe\u4e3aon\uff0c\u4e0d\u8fc7\u51fa\u4e8e\u5b89\u5168\u8003\u8651\uff0c\u5f3a\u70c8\u5efa\u8bae\u5173\u95edregister_globle\u3002HTTP_SESSION_VARS\u4e5f\u4e0d\u63d0\u5021\u4f7f\u7528\u4e86\uff0c\u5b98\u65b9\u5efa\u8bae\u7528$_SESSION\u4ee3\u66ff\u4e4b\u3002\u4f8b\u5982\uff1a
\nPage1.php
\n<?php
\nSession_start();\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \/\/\u4f7f\u7528SESSION\u524d\u5fc5\u987b\u8c03\u7528\u8be5\u51fd\u6570\u3002
\n$_SESSION[\u2018name\u2019]=\u201d\u6211\u662f\u9ed1\u65cb\u98ce\u674e\u9035!\u201d;\u00a0\u00a0 \/\/\u6ce8\u518c\u4e00\u4e2aSESSION\u53d8\u91cf
\n$_SESSION[\u2018passwd\u2019]=\u201dmynameislikui\u201d;
\n$_SESSION[\u2018time\u2019]=time();
\necho ‘<br \/><a href=”page2.php”>\u901a\u8fc7COOKIE\u4f20\u9012SESSION<\/a>’;\u00a0\u00a0 \/\/\u5982\u679c\u5ba2\u6237\u7aef\u652f\u6301cookie\uff0c\u53ef\u901a\u8fc7\u8be5\u94fe\u63a5\u4f20\u9012session\u5230\u4e0b\u4e00\u9875\u3002
\necho ‘<br \/><a href=”page2.php?’ . SID . ‘”>\u901a\u8fc7URL\u4f20\u9012SESSION<\/a>’;\/\/\u5ba2\u6237\u7aef\u4e0d\u652f\u6301cookie\u65f6\uff0c\u4f7f\u7528\u8be5\u529e\u6cd5\u4f20\u9012session.
\n?>
\nPage2.php
\n<?php
\nsession_start();
\necho $_SESSION[‘name’]; \/\/
\necho $_SESSION[‘passwd’]; \u00a0 \/\/
\necho date(‘Y m d H:i:s’, $_SESSION[‘time’]);
\necho ‘<br \/><a href=”page1.php”>\u8fd4\u56de\u5c71\u4e00\u9875<\/a>’;
\n?>
\n\u6709\u4e24\u79cd\u65b9\u6cd5\u4f20\u9012\u4e00\u4e2a\u4f1a\u8bdd ID\uff1a<\/strong>
\ncookie
\nURL \u53c2\u6570
\n\u4f1a\u8bdd\u6a21\u5757\u652f\u6301\u8fd9\u4e24\u79cd\u65b9\u6cd5\u3002cookie \u66f4\u4f18\u5316\uff0c\u4f46\u7531\u4e8e\u4e0d\u603b\u662f\u53ef\u7528\uff0c\u4e5f\u63d0\u4f9b\u66ff\u4ee3\u7684\u65b9\u6cd5\u3002\u7b2c\u4e8c\u79cd\u65b9\u6cd5\u76f4\u63a5\u5c06\u4f1a\u8bdd ID \u5d4c\u5165\u5230 URL \u4e2d\u95f4\u53bb\u3002
\nPHP \u53ef\u4ee5\u900f\u660e\u5730\u8f6c\u6362\u8fde\u63a5\u3002\u9664\u975e\u662f\u4f7f\u7528 PHP 4.2 \u6216\u66f4\u65b0\u7248\u672c\uff0c\u9700\u8981\u624b\u5de5\u5728\u7f16\u8bd1 PHP \u65f6\u6fc0\u6d3b\u3002\u5728 Unix \u4e0b\uff0c\u7528 –enable-trans-sid \u914d\u7f6e\u9009\u9879\u3002\u5982\u679c\u6b64\u914d\u7f6e\u9009\u9879\u548c\u8fd0\u884c\u65f6\u9009\u9879 session.use_trans_sid \u90fd\u88ab\u6fc0\u6d3b(\u4fee\u6539php.ini)\uff0c\u76f8\u5bf9 URI \u5c06\u88ab\u81ea\u52a8\u4fee\u6539\u4e3a\u5305\u542b\u4f1a\u8bdd ID\u3002
\n\u25cf session_id<\/span>
\n\u00a0\u00a0\u00a0 session_id() \u7528\u4e8e\u8bbe\u5b9a\u6216\u53d6\u5f97\u5f53\u524dsession_id\u3002php5\u4e2d\u65e2\u53ef\u4ee5\u4f7f\u7528session_id()\uff0c\u4e5f\u53ef\u4ee5\u901a\u8fc7\u9644\u52a0\u5728url\u4e0a\u7684SID\u53d6\u5f97\u5f53\u524d\u4f1a\u8bdd\u7684session_id\u548csession_name\u3002
\n\u00a0\u00a0\u00a0 \u5982\u679csession_id()\u6709\u5177\u4f53\u6307\u5b9a\u503c\u7684\u8bdd\uff0c\u5c06\u53d6\u4ee3\u5f53\u524d\u7684session_id\u503c\u3002\u4f7f\u7528\u8be5\u51fd\u6570\u524d\u5fc5\u987b\u542f\u52a8\u4f1a\u8bdd\uff1asession_start();
\n\u00a0\u00a0\u00a0 \u5f53\u6211\u4eec\u4f7f\u7528session cookies\u65f6\uff0c\u5982\u679c\u6307\u5b9a\u4e86\u4e00\u4e2asession_id()\u503c\uff0c\u6bcf\u6b21\u542f\u52a8session_start()\u90fd\u4f1a\u5f80\u5ba2\u6237\u7aef\u53d1\u9001\u4e00\u4e2acookie\u503c\u3002\u4e0d\u8bba\u5f53\u524dsession_id\u662f\u5426\u4e0e\u6307\u5b9a\u503c\u76f8\u7b49\u3002
\nsession_id()\u5982\u679c\u6ca1\u6709\u6307\u5b9a\u503c\uff0c\u5219\u8fd4\u56de\u5f53\u524dsession_id();\u5f53\u524d\u4f1a\u8bdd\u6ca1\u6709\u542f\u52a8\u7684\u8bdd\uff0c\u5219\u8fd4\u56de\u7a7a\u5b57\u7b26\u4e32\u3002
\n\u00a0\u25cf \u68c0\u67e5session\u662f\u5426\u5b58\u5728\uff1f
\n<\/span>\u00a0\u00a0\u00a0 \u5728\u4ee5\u5f80\u7684php\u7248\u672c\u4e2d\u901a\u5e38\u4f7f\u7528session_is_register()\u68c0\u67e5session\u662f\u5426\u5b58\u5728\uff0c\u5982\u679c\u60a8\u4f7f\u7528$_SESSION[\u2018XXX\u2019]=XXX\u6765\u6ce8\u518c\u4f1a\u8bdd\u53d8\u91cf\uff0c\u5219session_is_register()\u51fd\u6570\u4e0d\u518d\u8d77\u4f5c\u7528\u3002\u4f60\u53ef\u4ee5\u4f7f\u7528
\nisset($_SESSION[\u2018xxx\u2019])\u6765\u66ff\u4ee3\u3002
\n\u25cf \u66f4\u6539session_id<\/span>\u00a0 session_regenerate_id() \u66f4\u6539\u6210\u529f\u5219\u8fd4\u56detrue\uff0c\u5931\u8d25\u5219\u8fd4\u56defalse\u3002
\n\u4f7f\u7528\u8be5\u51fd\u6570\u53ef\u4ee5\u4e3a\u5f53\u524dsession\u66f4\u6539session_id\uff0c\u4f46\u4e0d\u6539\u53d8\u5f53\u524dsession\u7684\u5176\u4ed6\u4fe1\u606f\u3002\u4f8b\u5982\uff1a
\n<?php
\nsession_start();
\n$old_sessionid = session_id();
\nsession_regenerate_id();
\n$new_sessionid = session_id();
\necho “\u539f\u59cb SessionID: $old_sessionid<br \/>”;
\necho “\u65b0\u7684 SessionID: $new_sessionid<br \/>”;
\necho”<pre>”;
\nprint_r($_SESSION);
\necho”<\/pre>”;
\n?>
\n\u25cf session_name()<\/span> \u8fd4\u56de\u5f53\u524dsession\u7684name\u6216\u6539\u53d8\u5f53\u524dsession\u7684name\u3002\u5982\u679c\u8981\u6539\u53d8\u5f53\u524dsession\u7684name\uff0c\u5fc5\u987b\u5728session_start()\u4e4b\u524d\u8c03\u7528\u8be5\u51fd\u6570\u3002\u6ce8\u610f\uff1asession_name\u4e0d\u80fd\u53ea\u7531\u6570\u5b57\u7ec4\u6210\uff0c\u5b83\u81f3\u5c11\u5305\u542b\u4e00\u4e2a\u5b57\u6bcd\u3002\u5426\u5219\u4f1a\u5728\u6bcf\u65f6\u6bcf\u523b\u90fd\u751f\u6210\u4e00\u4e2a\u65b0\u7684session id.
\nsession\u6539\u540d\u793a\u4f8b\uff1a
\n<?php
\n$previous_name = session_name(“WebsiteID”);
\necho “\u65b0\u7684session\u540d\u4e3a\uff1a $previous_name<br \/>”;
\n?><\/p>\n

\u25cf \u5982\u4f55\u5220\u9664session\uff1f
\n<\/span><\/strong>1\u3001unset ($_SESSION[‘xxx’])<\/span> \u5220\u9664\u5355\u4e2asession\uff0cunset($_SESSION[‘xxx’]) \u7528\u6765unregister\u4e00\u4e2a\u5df2\u6ce8\u518c\u7684session\u53d8\u91cf\u3002\u5176\u4f5c\u7528\u548csession_unregister()\u76f8\u540c\u3002session_unregister()\u5728PHP5\u4e2d\u4e0d\u518d\u4f7f\u7528\uff0c\u53ef\u5c06\u4e4b\u6253\u5165\u51b7\u5bab\u3002
\nunset($_SESSION)\u00a0 \u6b64\u51fd\u6570\u5343\u4e07\u4e0d\u53ef\u4f7f\u7528\uff0c\u5b83\u4f1a\u5c06\u5168\u5c40\u53d8\u91cf$_SESSION\u9500\u6bc1\uff0c\u800c\u4e14\u8fd8\u6ca1\u6709\u53ef\u884c\u7684\u529e\u6cd5\u5c06\u5176\u6062\u590d\u3002\u7528\u6237\u4e5f\u4e0d\u518d\u53ef\u4ee5\u6ce8\u518c$_SESSION\u53d8\u91cf\u3002
\n<\/span><\/span>2\u3001$_SESSION=array()<\/span> \u5220\u9664\u591a\u4e2asession<\/span>
\n<\/span>3\u3001session_destroy()<\/span>\u7ed3\u675f\u5f53\u524d\u7684\u4f1a\u8bdd\uff0c\u5e76\u6e05\u7a7a\u4f1a\u8bdd\u4e2d\u7684\u6240\u6709\u8d44\u6e90\u3002\u3002\u8be5\u51fd\u6570\u4e0d\u4f1aunset(\u91ca\u653e)\u548c\u5f53\u524dsession\u76f8\u5173\u7684\u5168\u5c40\u53d8\u91cf(globalvariables),\u4e5f\u4e0d\u4f1a\u5220\u9664\u5ba2\u6237\u7aef\u7684session cookie.PHP\u9ed8\u8ba4\u7684session\u662f\u57fa\u4e8ecookie\u7684\uff0c\u5982\u679c\u8981\u5220\u9664cookie\u7684\u8bdd\uff0c\u5fc5\u987b\u501f\u52a9setcookie()\u51fd\u6570\u3002
\n\u00a0\u00a0\u00a0 \u8fd4\u56de\u503c\uff1a\u5e03\u5c14\u503c\u3002
\n\u00a0\u00a0\u00a0 \u529f\u80fd\u8bf4\u660e\uff1a\u8fd9\u4e2a\u51fd\u6570\u7ed3\u675f\u5f53\u524d\u7684session\uff0c\u6b64\u51fd\u6570\u6ca1\u6709\u53c2\u6570\uff0c\u4e14\u8fd4\u56de\u503c\u5747\u4e3atrue<\/p>\n

\u00a0\u00a0 session_unset() \u5982\u679c\u4f7f\u7528\u4e86$_SESSION\uff0c\u5219\u8be5\u51fd\u6570\u4e0d\u518d\u8d77\u4f5c\u7528\u3002\u7531\u4e8ePHP5\u5fc5\u5b9a\u8981\u4f7f\u7528$_SESSION\uff0c\u6240\u4ee5\u6b64\u51fd\u6570\u53ef\u4ee5\u6253\u5165\u51b7\u5bab\u4e86\u3002<\/p>\n

\u4e0b\u9762\u662fPHP\u5b98\u65b9\u5173\u4e8e\u5220\u9664session\u7684\u6848\u4f8b\uff1a
\n<\/span><?php
\n\/\/ \u521d\u59cb\u5316session.
\nsession_start();
\n\/*** \u5220\u9664\u6240\u6709\u7684session\u53d8\u91cf..\u4e5f\u53ef\u7528unset($_SESSION[xxx])\u9010\u4e2a\u5220\u9664\u3002****\/
\n$_SESSION = array();
\n\/***\u5220\u9664sessin id.\u7531\u4e8esession\u9ed8\u8ba4\u662f\u57fa\u4e8ecookie\u7684\uff0c\u6240\u4ee5\u4f7f\u7528setcookie\u5220\u9664\u5305\u542bsession id\u7684cookie.***\/
\nif (isset($_COOKIE[session_name()])) {
\n\u00a0 \u00a0setcookie(session_name(), ”, time()-42000, ‘\/’);
\n}
\n\/\/ \u6700\u540e\u5f7b\u5e95\u9500\u6bc1session.
\nsession_destroy();
\n?><\/p>\n

\u7531\u6b64\u6211\u4eec\u53ef\u4ee5\u5f97\u51fa\u5220\u9664Session\u7684\u6b65\u9aa4\uff1a
\n\u2460session_start()
\n\u2461$_SESSION=array()\/unset($_SESSION[‘xxx’])
\n\u2462session_destroy()<\/p>\n

\u25cf SESSION\u5b89\u5168:<\/strong>
\n\u00a0\u00a0\u00a0 \u4f1a\u8bdd\u6a21\u5757\u4e0d\u80fd\u4fdd\u8bc1\u5b58\u653e\u5728\u4f1a\u8bdd\u4e2d\u7684\u4fe1\u606f\u53ea\u80fd\u88ab\u521b\u5efa\u8be5\u4f1a\u8bdd\u7684\u7528\u6237\u770b\u5230\u3002\u6839\u636e\u5176\u5b58\u653e\u7684\u6570\u636e\uff0c\u8fd8\u9700\u8981\u91c7\u53d6\u66f4\u591a\u63aa\u65bd\u6765\u4e3b\u52a8\u4fdd\u62a4\u4f1a\u8bdd\u7684\u5b8c\u6574\u6027\u3002
\n\u00a0\u00a0\u00a0 \u8bc4\u4f30\u4f1a\u8bdd\u4e2d\u643a\u5e26\u7684\u6570\u636e\u5e76\u5b9e\u65bd\u9644\u52a0\u4fdd\u62a4\u63aa\u65bd\u901a\u5e38\u8981\u4ed8\u51fa\u4ee3\u4ef7\uff0c\u964d\u4f4e\u7528\u6237\u7684\u65b9\u4fbf\u7a0b\u5ea6\u3002\u4f8b\u5982\uff0c\u5982\u679c\u8981\u4fdd\u62a4\u7528\u6237\u514d\u4e8e\u53d7\u7b80\u5355\u7684\u793e\u4ea4\u7b56\u7565\u4fb5\u5bb3\uff08\u6ce8\uff1a\u6307\u5728 URL \u4e2d\u663e\u793a\u7684\u4f1a\u8bdd ID \u4f1a\u88ab\u522b\u4eba\u5728\u7535\u8111\u5c4f\u5e55\u4e0a\u770b\u5230\uff0c\u6216\u88ab\u522b\u7684\u7f51\u7ad9\u901a\u8fc7 HTTP Referer \u5f97\u5230\u7b49\uff09\uff0c\u5219\u5e94\u8be5\u542f\u7528 session.use_only_cookies\u3002\u6b64\u60c5\u5f62\u4e0b\uff0c\u5ba2\u6237\u7aef\u5fc5\u987b\u65e0\u6761\u4ef6\u542f\u7528 cookie\uff0c\u5426\u5219\u4f1a\u8bdd\u5c31\u4e0d\u5de5\u4f5c\u3002
\n\u00a0\u00a0\u00a0 \u6709\u51e0\u79cd\u9014\u5f84\u4f1a\u5c06\u73b0\u6709\u7684\u4f1a\u8bdd ID \u6cc4\u9732\u7ed9\u7b2c\u4e09\u65b9\u3002\u6cc4\u9732\u51fa\u7684\u4f1a\u8bdd ID \u4f7f\u7b2c\u4e09\u65b9\u80fd\u591f\u8bbf\u95ee\u6240\u6709\u4e0e\u6307\u5b9a ID \u76f8\u5173\u8054\u7684\u8d44\u6e90\u3002\u7b2c\u4e00\uff0cURL \u643a\u5e26\u4f1a\u8bdd ID\u3002\u5982\u679c\u8fde\u63a5\u5230\u5916\u90e8\u7ad9\u70b9\uff0c\u5305\u542b\u6709\u4f1a\u8bdd ID \u7684 URL \u53ef\u80fd\u4f1a\u88ab\u5b58\u5728\u5916\u90e8\u7ad9\u70b9\u7684 Referer \u65e5\u5fd7\u4e2d\u3002\u7b2c\u4e8c\uff0c\u8f83\u4e3b\u52a8\u7684\u653b\u51fb\u8005\u53ef\u80fd\u4f1a\u4fa6\u542c\u7f51\u6bb5\u7684\u6570\u636e\u5305\u3002\u5982\u679c\u672a\u52a0\u5bc6\uff0c\u4f1a\u8bdd ID \u4f1a\u4ee5\u660e\u6587\u65b9\u5f0f\u5728\u7f51\u7edc\u4e2d\u6d41\u8fc7\u3002\u5bf9\u6b64\u7684\u89e3\u51b3\u65b9\u5f0f\u662f\u5728\u670d\u52a1\u5668\u4e0a\u5b9e\u65bd SSL \u5e76\u5f3a\u5236\u7528\u6237\u4f7f\u7528\u3002
\n\u00a0\u00a0\u00a0 \u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u6240\u6709\u4e0e\u7279\u5b9a\u4f1a\u8bdd\u76f8\u5173\u7684\u6570\u636e\u90fd\u88ab\u5b58\u50a8\u5728\u7531 INI \u9009\u9879 session.save_path \u6307\u5b9a\u7684\u76ee\u5f55\u4e0b\u7684\u4e00\u4e2a\u6587\u4ef6\u4e2d\u3002\u5bf9\u6bcf\u4e2a\u4f1a\u8bdd\u4f1a\u5efa\u7acb\u4e00\u4e2a\u6587\u4ef6\uff08\u4e0d\u8bba\u662f\u5426\u6709\u6570\u636e\u4e0e\u8be5\u4f1a\u8bdd\u76f8\u5173\uff09\u3002\u8fd9\u662f\u7531\u4e8e\u6bcf\u6253\u5f00\u4e00\u4e2a\u4f1a\u8bdd\u5373\u5efa\u7acb\u4e00\u4e2a\u6587\u4ef6\uff0c\u4e0d\u8bba\u662f\u5426\u6709\u6570\u636e\u5199\u5165\u5230\u8be5\u6587\u4ef6\u4e2d\u3002\u6ce8\u610f\u7531\u4e8e\u548c\u6587\u4ef6\u7cfb\u7edf\u534f\u540c\u5de5\u4f5c\u7684\u9650\u5236\uff0c\u6b64\u884c\u4e3a\u6709\u4e2a\u526f\u4f5c\u7528\uff0c\u6709\u53ef\u80fd\u9020\u6210\u7528\u6237\u5b9a\u5236\u7684\u4f1a\u8bdd\u5904\u7406\u5668\uff08\u4f8b\u5982\u7528\u6570\u636e\u5e93\uff09\u4e22\u5931\u4e86\u672a\u5b58\u50a8\u6570\u636e\u7684\u4f1a\u8bdd\u3002
\n\u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0 \u4e0a\u9762\u4ecb\u7ecd\u51fd\u6570\u4e0b\u6587\u5c06\u4f1a\u7528\u5230\uff0c\u4f46\u8fd8\u6709\u4e00\u4e9b\u6709\u5173session\u7684\u51fd\u6570\u4e5f\u4ecb\u7ecd\u4e00\u4e0b\uff1a
\n\u00a0session_encode
\n\u00a0\u00a0\u00a0 \u51fd\u6570\u529f\u80fd\uff1asesssion\u4fe1\u606f\u7f16\u7801
\n\u00a0\u00a0\u00a0 \u51fd\u6570\u539f\u578b\uff1astring session_encode(void);
\n\u00a0\u00a0\u00a0 \u8fd4\u56de\u503c\uff1a\u5b57\u7b26\u4e32
\n\u00a0\u00a0\u00a0 \u529f\u80fd\u8bf4\u660e\uff1a\u8fd4\u56de\u7684\u5b57\u7b26\u4e32\u4e2d\u5305\u542b\u5168\u5c40\u53d8\u91cf\u4e2d\u5404\u53d8\u91cf\u7684\u540d\u79f0\u4e0e\u503c\uff0c\u5f62\u5f0f\u5982\uff1aa|s:12:”it is a test”;c|s:4:”lala”; a\u662f\u53d8\u91cf\u540d s:12\u4ee3\u8868\u53d8\u91cfa\u7684\u503c”it is a test\u7684\u957f\u5ea6\u662f12 \u53d8\u91cf\u95f4\u7528\u5206\u53f7\u201d;\u201d\u5206\u9694\u3002
\n\u00a0session_decode
\n\u00a0\u00a0\u00a0 \u51fd\u6570\u529f\u80fd\uff1asesssion\u4fe1\u606f\u89e3\u7801
\n\u00a0\u00a0\u00a0 \u51fd\u6570\u539f\u578b\uff1aboolean session_decode (string data)
\n\u00a0\u00a0\u00a0 \u8fd4\u56de\u503c\uff1a\u5e03\u5c14\u503c
\n\u00a0\u00a0\u00a0 \u529f\u80fd\u8bf4\u660e\uff1a\u8fd9\u4e2a\u51fd\u6570\u53ef\u5c06session\u4fe1\u606f\u89e3\u7801\uff0c\u6210\u529f\u5219\u8fd4\u56de\u903b\u8f91\u503ctrue
\nPhp5\u4e0d\u518d\u4f7f\u7528session_id\uff0c\u800c\u662f\u628a\u5b83\u53d8\u6210\u4e00\u4e2a\u5e38\u91cfSID\uff0c\u5e76\u4fdd\u5b58\u5728cookie\u4e2d\u3002\u5982\u679c\u5ba2\u6237\u7aef\u7981\u7528\u4e86cookie\uff0cphp\u4f1a\u81ea\u52a8\u901a\u8fc7url\u81ea\u52a8\u4f20\u52a8\u4f20\u9012SID\uff0c\u5176\u6761\u4ef6\u662f\u8bbe\u7f6ephp.ini\u4e2d\u7684session.use_trans_sid = 1\u3002\u6b64\u65f6\u5373\u4f7f\u5ba2\u6237\u7aef\u5373\u4f7f\u7981\u7528\u4e86cookie\u4e5f\u6ca1\u5173\u7cfb\u4e86\u3002
\n\u00a0\u00a0 \u7528 strip_tags() \u6765\u8f93\u51fa SID \u4ee5\u907f\u514d XSS \u76f8\u5173\u7684\u653b\u51fb\u3002<\/p>\n

Session\u8de8\u9875\u4f20\u9012\u95ee\u9898\uff1a<\/strong>
\nsession\u8de8\u9875\u4f20\u9012\u9700\u8981\u8003\u8651\u4e09\u79cd\u60c5\u51b5\uff1a
\n\u2460\u5ba2\u6237\u7aef\u7981\u7528\u4e86cookie\u3002
\n\u2461\u6d4f\u89c8\u5668\u51fa\u73b0\u95ee\u9898\uff0c\u6682\u65f6\u65e0\u6cd5\u5b58\u53d6cookie
\n\u2462php.ini\u4e2d\u7684session.use_trans_sid = 0\u6216\u8005\u7f16\u8bd1\u65f6\u6ca1\u6709\u6253\u5f00–enable-trans-sid\u9009\u9879
\n\u4e3a\u4ec0\u4e48\u4f1a\u8fd9\u6837\u5462\uff1f\u4e0b\u9762\u89e3\u91ca\u4e00\u4e0b\u539f\u56e0\uff1a
\nSession\u6587\u4ef6\u5206\u4e3a\u4e24\u90e8\u5206\uff1asession\u53d8\u91cf\u4fdd\u5b58\u5728\u670d\u52a1\u5668\u7aef\uff08\u9ed8\u8ba4\u4ee5\u6587\u4ef6\u65b9\u5f0f\u5b58\u50a8session\uff09\uff1b\u800csession id\u5219\u4ee5cookie\u5f62\u5f0f\u4fdd\u5b58\u5728\u5ba2\u6237\u7aef\u3002(\u6ce8\u610f\uff1asession\u9ed8\u8ba4\u662f\u57fa\u4e8ecookie\u7684)\u3002
\n\u00a0\u00a0\u00a0 \u5f53\u7528\u6237\u7684\u6d4f\u89c8\u5668\u5411\u670d\u52a1\u5668\u63d0\u51fa\u8bf7\u6c42\u65f6\uff0c\u540c\u65f6\u53d1\u9001\u5305\u542bsession id\u7684cookie(\u9ed8\u8ba4\u60c5\u51b5\u4e0b)\u3002\u670d\u52a1\u5668\u6839\u636e\u5ba2\u6237\u7aef\u63d0\u4f9b\u7684session id\u6765\u5f97\u5230\u7528\u6237\u7684\u6587\u4ef6\uff0c\u5373\u4fdd\u5b58\u5728\u670d\u52a1\u5668\u7aef\u7684session\u53d8\u91cf\u503c\u3002\u4e8b\u5b9e\u4e0a\uff0csession id\u53ef\u4ee5\u4f7f\u7528\u5ba2\u6237\u7aef\u7684Cookie\u6216\u8005Http1.1\u534f\u8bae\u7684Query_String\uff08\u5c31\u662f\u8bbf\u95ee\u7684URL\u7684\u201c?\u201d\u540e\u9762\u7684\u90e8\u5206\uff09\u6765\u4f20\u9001\u7ed9\u670d\u52a1\u5668\uff0c\u7136\u540e\u670d\u52a1\u5668\u8bfb\u53d6Session\u7684\u76ee\u5f55\u2026\u2026\u3002\u4e5f\u5c31\u662f\u8bf4\uff0csession id\u662f\u53d6\u5f97\u5b58\u50a8\u5728\u670d\u52a1\u4e0a\u7684session\u53d8\u91cf\u7684\u8eab\u4efd\u8bc1\u3002\u5f53\u4ee3\u7801session_start();\u8fd0\u884c\u7684\u65f6\u5019\uff0c\u5c31\u5728\u670d\u52a1\u5668\u4e0a\u4ea7\u751f\u4e86\u4e00\u4e2asession\u6587\u4ef6\uff0c\u968f\u4e4b\u4e5f\u4ea7\u751f\u4e86\u4e0e\u4e4b\u552f\u4e00\u5bf9\u5e94\u7684\u4e00\u4e2asession id\uff0c\u5b9a\u4e49session\u53d8\u91cf\u4ee5\u4e00\u5b9a\u5f62\u5f0f\u5b58\u50a8\u5728\u521a\u624d\u4ea7\u751f\u7684session\u6587\u4ef6\u4e2d\u3002\u901a\u8fc7session id\uff0c\u53ef\u4ee5\u53d6\u51fa\u5b9a\u4e49\u7684\u53d8\u91cf\u3002\u8de8\u9875\u540e\uff0c\u4e3a\u4e86\u4f7f\u7528session\uff0c\u4f60\u5fc5\u987b\u53c8\u6267\u884csession_start();\u5c06\u53c8\u4f1a\u4ea7\u751f\u4e00\u4e2asession\u6587\u4ef6\uff0c\u4e0e\u4e4b\u5bf9\u5e94\u4ea7\u751f\u76f8\u5e94\u7684session id\uff0c\u7528\u8fd9\u4e2asession id\u662f\u53d6\u4e0d\u51fa\u524d\u9762\u63d0\u5230\u7684\u7b2c\u4e00\u4e2asession\u6587\u4ef6\u4e2d\u7684\u53d8\u91cf\u7684\uff0c\u56e0\u4e3a\u8fd9\u4e2asession id\u4e0d\u662f\u6253\u5f00\u5b83\u7684\u201c\u94a5\u5319\u201d\u3002\u5982\u679c\u5728session_start();\u4e4b\u524d\u52a0\u4ee3\u7801session_id($session id);\u5c06\u4e0d\u4ea7\u751f\u65b0\u7684session\u6587\u4ef6\uff0c\u76f4\u63a5\u8bfb\u53d6\u4e0e\u8fd9\u4e2aid\u5bf9\u5e94\u7684session\u6587\u4ef6\u3002
\n\u00a0\u00a0\u00a0 PHP\u4e2d\u7684session\u5728\u9ed8\u8ba4\u60c5\u51b5\u4e0b\u662f\u4f7f\u7528\u5ba2\u6237\u7aef\u7684Cookie\u6765\u4fdd\u5b58session id\u7684,\u6240\u4ee5\u5f53\u5ba2\u6237\u7aef\u7684cookie\u51fa\u73b0\u95ee\u9898\u7684\u65f6\u5019\u5c31\u4f1a\u5f71\u54cdsession\u4e86\u3002\u5fc5\u987b\u6ce8\u610f\u7684\u662f\uff1asession\u4e0d\u4e00\u5b9a\u5fc5\u987b\u4f9d\u8d56cookie\uff0c\u8fd9\u4e5f\u662fsession\u76f8\u6bd4cookie\u7684\u9ad8\u660e\u4e4b\u5904\u3002\u5f53\u5ba2\u6237\u7aef\u7684Cookie\u88ab\u7981\u7528\u6216\u51fa\u73b0\u95ee\u9898\u65f6\uff0cPHP\u4f1a\u81ea\u52a8\u628asession id\u9644\u7740\u5728URL\u4e2d,\u8fd9\u6837\u518d\u901a\u8fc7session id\u5c31\u80fd\u8de8\u9875\u4f7f\u7528session\u53d8\u91cf\u4e86\u3002\u4f46\u8fd9\u79cd\u9644\u7740\u4e5f\u662f\u6709\u4e00\u5b9a\u6761\u4ef6\u7684\uff0c\u5176\u4e00\uff1a\u201cphp.ini\u4e2d\u7684session.use_trans_sid = 1\u6216\u8005\u7f16\u8bd1\u65f6\u6253\u5f00\u6253\u5f00\u4e86–enable-trans-sid\u9009\u9879\u201d\uff1b\u5176\u4e8c\uff1a\u8fd0\u884cPHP\u7684\u670d\u52a1\u5668\u5fc5\u987b\u662funix\/linux\u7cfb\u7edf\uff0cwindows\u4e0d\u5177\u5907\u6b64\u9879\u529f\u80fd\u3002
\n\u00a0\u00a0\u00a0\u00a0 \u660e\u767d\u4e86\u4ee5\u4e0a\u7684\u9053\u7406\uff0c\u6211\u4eec\u5c31\u53ef\u4ee5\u5f97\u51fa\u89e3\u51b3session\u8de8\u9875\u4f20\u9012\u95ee\u9898\u7684\u4e09\u6761\u9014\u5f84\uff1a
\n1\u3001\u8bbe\u7f6ephp.ini\u4e2d\u7684session.use_trans_sid = 1\u6216\u8005\u7f16\u8bd1\u65f6\u6253\u5f00\u6253\u5f00\u4e86–enable-trans-sid\u9009\u9879\uff0c\u8ba9PHP\u81ea\u52a8\u8de8\u9875\u4f20\u9012session id\u3002
\n2\u3001\u624b\u52a8\u901a\u8fc7URL\u4f20\u503c\u3001\u9690\u85cf\u8868\u5355\u4f20\u9012session id\u3002
\n3\u3001\u7528\u6587\u4ef6\u3001\u6570\u636e\u5e93\u7b49\u5f62\u5f0f\u4fdd\u5b58session_id,\u5728\u8de8\u9875\u8fc7\u7a0b\u4e2d\u624b\u52a8\u8c03\u7528\u3002
\n\u4e0b\u9762\u4e3e\u4f8b\u8bf4\u660e\uff1a
\n\u7b2c\u4e00\u79cd\u60c5\u51b5\uff1a
\npage1.php
\n<?php
\nsession_start();
\n$_SESSION[‘var1’]=”\u4e2d\u534e\u4eba\u6c11\u5171\u548c\u56fd”;
\n$url=”<a href=”.”\\”s2.php\\”>\u4e0b\u4e00\u9875<\/a>”;
\necho $url;
\n?>
\npage2.php
\n<?php
\nsession_start();
\necho “\u4f20\u9012\u7684session\u53d8\u91cfvar1\u7684\u503c\u4e3a\uff1a”.$_SESSION[‘var1’];
\n?>
\n\u8fd0\u884c\u4ee5\u4e0a\u4ee3\u7801\uff0c\u5728\u5ba2\u6237\u7aefcookie\u6b63\u5e38\u7684\u60c5\u51b5\u4e0b\uff0c\u5e94\u8be5\u53ef\u4ee5\u5728\u5f97\u5230\u7ed3\u679c\u201c\u4e2d\u534e\u4eba\u6c11\u5171\u548c\u56fd\u201d\u3002
\n\u73b0\u5728\u4f60\u624b\u52a8\u5173\u95ed\u5ba2\u6237\u7aef\u7684cookie\uff0c\u518d\u8fd0\u884c\uff0c\u53ef\u80fd\u5f97\u4e0d\u5230\u7ed3\u679c\u4e86\u5427\u3002\u5982\u679c\u5f97\u4e0d\u5230\u7ed3\u679c\uff0c\u518d\u201c\u8bbe\u7f6ephp.ini\u4e2d\u7684session.use_trans_sid = 1\u6216\u8005\u7f16\u8bd1\u65f6\u6253\u5f00\u6253\u5f00\u4e86–enable-trans-sid\u9009\u9879\u201d\uff0c\u53c8\u5f97\u5230\u7ed3\u679c\u201c\u4e2d\u534e\u4eba\u6c11\u5171\u548c\u56fd\u201d<\/p>\n

\u7b2c\u4e8c\u79cd\u9014\u5f84\uff1a
\ns1.php
\n<?php
\nsession_start();
\n$_SESSION[‘var1′]=”\u4e2d\u534e\u4eba\u6c11\u5171\u548c\u56fd”;
\n$sn = session_id();
\n$url=”<a href=”.”\\”s2.php?s=”.$sn.”\\”>\u4e0b\u4e00\u9875<\/a>”;\u00a0\u00a0\u00a0 \/\/PHP5\u5b9a\u4e49\u4e86\u4e00\u4e2a\u5e38\u91cfSID\u6765\u8868\u793asession_id()\uff0c$url\u8fd8\u53ef\u4ee5\u5199\u6210$url='<a href=”page2.php?’ . SID . ‘”>\u4e0b\u4e00\u9875<\/a>’;
\necho $url;
\n?>
\ns2.php
\n<?php
\nsession_id($_GET[‘s’]);
\nsession_start();
\necho “\u4f20\u9012\u7684session\u53d8\u91cfvar1\u7684\u503c\u4e3a\uff1a”.$_SESSION[‘var1’];
\n?>
\n\u7b2c\u4e09\u79cd\u9014\u5f84\uff1a
\nlogin.html
\n<!DOCTYPE HTML PUBLIC “-\/\/W3C\/\/DTD HTML 4.01 Transitional\/\/EN”>
\n<html>
\n<head>
\n<title>Login<\/title>
\n<meta http-equiv=”Content-Type” content=”text\/html; charset=??????”>
\n<\/head>
\n<body>
\n\u8bf7\u767b\u5f55\uff1a
\n<form name=”login” method=”post” action=”mylogin1.php”>
\n\u7528\u6237\u540d:<input type=”text” name=”name”><br>
\n\u53e3\u3000\u4ee4:<input type=”password” name=”pass”><br>
\n<input type=”submit” value=”\u767b\u5f55”>
\n<\/form>
\n<\/body>
\n<\/html>
\nmylogin1.php
\n<?php
\n$name=$_POST[‘name’];
\n$pass=$_POST[‘pass’];
\nif(!$name || !$pass) {
\n\u00a0 \u00a0 echo “\u7528\u6237\u540d\u6216\u5bc6\u7801\u4e3a\u7a7a\uff0c\u8bf7<a href=\\”login.html\\”>\u91cd\u65b0\u767b\u5f55<\/a>”;
\n\u00a0 \u00a0 die();
\n}
\nif (!($name==”laogong” && $pass==”123″)) {
\n\u00a0 \u00a0 echo “\u7528\u6237\u540d\u6216\u5bc6\u7801\u4e0d\u6b63\u786e\uff0c\u8bf7<a href=\\”login.html\\”>\u91cd\u65b0\u767b\u5f55<\/a>”;
\n\u00a0 \u00a0 die();
\n}
\n\/\/\u6ce8\u518c\u7528\u6237
\nob_start();
\nsession_start();
\n$_SESSION[‘user’]= $name;
\n$psid=session_id();
\n$fp=fopen(“e:\\\\tmp\\\\phpsid.txt”,”w+”);
\nfwrite($fp,$psid);
\nfclose($fp);
\n\/\/\u8eab\u4efd\u9a8c\u8bc1\u6210\u529f\uff0c\u8fdb\u884c\u76f8\u5173\u64cd\u4f5c
\necho “\u5df2\u767b\u5f55<br>”;
\necho “<a href=\\”mylogin2.php\\”>\u4e0b\u4e00\u9875<\/a>”;
\n?>
\nmylogin2.php
\n<?php
\n$fp=fopen(“e:\\\\tmp\\\\phpsid.txt”,”r”);
\n$sid=fread($fp,1024);
\nfclose($fp);
\nsession_id($sid);
\nsession_start();
\nif(isset($_SESSION[‘user’]) && $_SESSION[‘user’]=”laogong” ) {
\n\u00a0 \u00a0\u00a0 echo “\u5df2\u767b\u5f55!”;
\n}
\nelse {
\n\u00a0 \u00a0 \/\/\u6210\u529f\u767b\u5f55\u8fdb\u884c\u76f8\u5173\u64cd\u4f5c
\n\u00a0 \u00a0 echo “\u672a\u767b\u5f55\uff0c\u65e0\u6743\u8bbf\u95ee”;
\n\u00a0 \u00a0 echo “\u8bf7<a href=\\”login.html\\”>\u767b\u5f55<\/a>\u540e\u6d4f\u89c8”;
\n\u00a0 \u00a0 die();
\n}
\n?><\/p>\n

\u53e6\u5916\uff0c\u5173\u4e8esession\u4fdd\u5b58\u5728\u6570\u636e\u5e93\u7684\u95ee\u9898\uff0c\u6b63\u5728\u7814\u7a76\u4e2d…<\/p>\n

\u6765\u6e90\uff1ahttp:\/\/home.phpchina.com\/space.php?uid=8051&do=blog&id=2994<\/a><\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"