{"id":30312,"date":"2022-08-29T10:10:23","date_gmt":"2023-12-11T03:27:21","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%9c%a8php%e4%b8%ad%e4%bd%bf%e7%94%a8%e4%bc%9a%e8%af%9d\/"},"modified":"2025-08-12T18:34:56","modified_gmt":"2025-08-12T10:34:56","slug":"%e5%9c%a8php%e4%b8%ad%e4%bd%bf%e7%94%a8%e4%bc%9a%e8%af%9d","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%9c%a8php%e4%b8%ad%e4%bd%bf%e7%94%a8%e4%bc%9a%e8%af%9d\/","title":{"rendered":"\u5728PHP\u4e2d\u4f7f\u7528\u4f1a\u8bdd"},"content":{"rendered":"<h1>PHP \u7684\u4f1a\u8bdd\u7528\u6cd5<\/h1>\n<p>\u4f1a\u8bdd\u662f\u4e00\u79cd\u5c06\u6570\u636e\u5b58\u50a8\u5728\u670d\u52a1\u5668\u4e0a\u7684\u673a\u5236\u3002\u5b83\u662f\u5728\u8de8\u9875\u9762\u4f7f\u7528\u6570\u636e\u65f6\u975e\u5e38\u4fbf\u5229\u7684\u529f\u80fd\u3002\u672c\u6b21\u6211\u4eec\u5c06\u6574\u7406\u4f1a\u8bdd\u7684\u4f7f\u7528\u65b9\u6cd5\u3002<\/p>\n<h2>\u5f00\u59cb\u4f1a\u8bdd()<\/h2>\n<p>\u901a\u8fc7session_start()\u51fd\u6570\uff0c\u53ef\u4ee5\u5f00\u59cb\u4f7f\u7528\u4f1a\u8bdd\u3002\u4f1a\u8bddID\u4f1a\u88ab\u521b\u5efa\u5e76\u4fdd\u5b58\u5728\u5ba2\u6237\u7aef\u3002<\/p>\n<p>\u5f53\u5ba2\u6237\u7aef\u5c06\u4f1a\u8bddID\u4f5c\u4e3aCookie\u65f6\uff0c\u6267\u884csession_start()\u51fd\u6570\uff0c\u53ef\u4ee5\u4f7f\u7528\u5b58\u50a8\u5728\u4f1a\u8bdd\u4e2d\u7684\u53d8\u91cf\u3002<\/p>\n<h2>$_SESSION -&gt; \u4f1a\u8bdd<\/h2>\n<p>\u5728\u4f1a\u8bdd\u4e2d\u4fdd\u5b58\u6570\u636e\u5230\u670d\u52a1\u5668\u65f6\u4f7f\u7528\u7684\u53d8\u91cf\\$_SESSION\u5c06\u88ab\u4ecb\u7ecd\u3002<br \/>\n\\$_SESSION\u53ef\u4ee5\u88ab\u5f53\u4f5c\u5173\u8054\u6570\u7ec4\u5904\u7406\u3002<\/p>\n<pre class=\"post-pre\"><code>  <span class=\"nb\">session_start<\/span><span class=\"p\">();<\/span>\r\n  <span class=\"nv\">$_SESSION<\/span><span class=\"p\">[<\/span><span class=\"s1\">'name'<\/span><span class=\"p\">]<\/span> <span class=\"o\">=<\/span> <span class=\"s2\">\"Hanako\"<\/span><span class=\"p\">;<\/span>\r\n  <span class=\"nv\">$_SESSION<\/span><span class=\"p\">[<\/span><span class=\"s1\">'number'<\/span><span class=\"p\">]<\/span> <span class=\"o\">=<\/span> <span class=\"s2\">\"0934\"<\/span><span class=\"p\">;<\/span>\r\n  <span class=\"nv\">$_SESSION<\/span><span class=\"p\">[<\/span><span class=\"s1\">'age'<\/span><span class=\"p\">]<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">22<\/span><span class=\"p\">;<\/span>\r\n  <span class=\"nv\">$_SESSION<\/span><span class=\"p\">[<\/span><span class=\"s1\">'remark'<\/span><span class=\"p\">]<\/span> <span class=\"o\">=<\/span> <span class=\"s2\">\"\u5927\u5b66\u751f\"<\/span><span class=\"p\">;<\/span>\r\n<\/code><\/pre>\n<p>\u901a\u8fc7\u8fd9\u4e2a\u65b9\u6cd5\uff0c\u53ef\u4ee5\u5c06\u53d8\u91cf\u4fdd\u5b58\u5230\u4f1a\u8bdd\u4e2d\u3002<\/p>\n<p>\u5f53\u60a8\u5728\u5176\u4ed6\u9875\u9762\u52a0\u8f7d\u8fd9\u4e9b\u6570\u636e\u65f6\uff0c\u9700\u8981\u4f7f\u7528session_start()\u51fd\u6570\u6765\u542f\u7528\u4f1a\u8bdd\uff0c\u5e76\u5c06\u952e\u4f20\u9012\u7ed9\\$_SESSION\u53d8\u91cf\u3002<\/p>\n<pre class=\"post-pre\"><code>  <span class=\"nb\">session_start<\/span><span class=\"p\">();<\/span>\r\n  <span class=\"nv\">$number<\/span> <span class=\"o\">=<\/span> <span class=\"nv\">$_SESSION<\/span><span class=\"p\">[<\/span><span class=\"s1\">'number'<\/span><span class=\"p\">];<\/span>\r\n  <span class=\"nv\">$name<\/span> <span class=\"o\">=<\/span> <span class=\"nv\">$_SESSION<\/span><span class=\"p\">[<\/span><span class=\"s1\">'name'<\/span><span class=\"p\">];<\/span>\r\n  <span class=\"nv\">$age<\/span> <span class=\"o\">=<\/span> <span class=\"nv\">$_SESSION<\/span><span class=\"p\">[<\/span><span class=\"s1\">'age'<\/span><span class=\"p\">];<\/span>\r\n  <span class=\"nv\">$remark<\/span> <span class=\"o\">=<\/span> <span class=\"nv\">$_SESSION<\/span><span class=\"p\">[<\/span><span class=\"s1\">'remark'<\/span><span class=\"p\">];<\/span>\r\n<\/code><\/pre>\n<h2>\u53d6\u6d88(\u53d8\u91cf)<\/h2>\n<p>\u4f7f\u7528\u5b8c\u540e\uff0c\u6211\u4eec\u4e5f\u5e94\u8be5\u6574\u7406\u4e00\u4e0b\u3002<br \/>\nunset()\u51fd\u6570\u53ef\u4ee5\u5c06\u4f20\u5165\u7684\u53d8\u91cf\u6e05\u7a7a\u3002<\/p>\n<pre class=\"post-pre\"><code>  <span class=\"nb\">unset<\/span><span class=\"p\">(<\/span><span class=\"nv\">$_SESSION<\/span><span class=\"p\">[<\/span><span class=\"s1\">'number'<\/span><span class=\"p\">]);<\/span>\r\n  <span class=\"nb\">unset<\/span><span class=\"p\">(<\/span><span class=\"nv\">$_SESSION<\/span><span class=\"p\">[<\/span><span class=\"s1\">'name'<\/span><span class=\"p\">]);<\/span>\r\n  <span class=\"nb\">unset<\/span><span class=\"p\">(<\/span><span class=\"nv\">$_SESSION<\/span><span class=\"p\">[<\/span><span class=\"s1\">'age'<\/span><span class=\"p\">]);<\/span>\r\n  <span class=\"nb\">unset<\/span><span class=\"p\">(<\/span><span class=\"nv\">$_SESSION<\/span><span class=\"p\">[<\/span><span class=\"s1\">'remark'<\/span><span class=\"p\">]);<\/span>\r\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>PHP \u7684\u4f1a\u8bdd\u7528\u6cd5 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