{"id":96616,"date":"2024-10-20T10:56:19","date_gmt":"2024-10-20T02:56:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/96616\/"},"modified":"2024-10-20T10:56:20","modified_gmt":"2024-10-20T02:56:20","slug":"php%e6%95%b8%e6%93%9a%e5%ba%ab%e6%93%8d%e4%bd%9c%e6%8a%80%e5%b7%a7%ef%bc%9a%e8%ae%80%e5%8f%96%e5%92%8c%e5%88%aa%e9%99%a4%e5%b8%b6%e6%8f%9b%e8%a1%8c%e7%9a%84%e6%95%b8%e6%93%9a-php-%e6%95%b8%e6%93%9a","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/96616\/","title":{"rendered":"php\u6578\u64da\u5eab\u64cd\u4f5c\u6280\u5de7\uff1a\u8b80\u53d6\u548c\u522a\u9664\u5e36\u63db\u884c\u7684\u6578\u64da (php \u6578\u64da\u5eab\u8b80\u53d6 \u522a\u9664\u63db\u884c)"},"content":{"rendered":"

PHP\u6578\u64da\u5eab\u64cd\u4f5c\u6280\u5de7\uff1a\u8b80\u53d6\u548c\u522a\u9664\u5e36\u63db\u884c\u7684\u6578\u64da<\/h1>\n

\u5728\u73fe\u4ee3\u7684\u7db2\u9801\u958b\u767c\u4e2d\uff0cPHP\u4f5c\u70ba\u4e00\u7a2e\u6d41\u884c\u7684\u4f3a\u670d\u5668\u7aef\u8a9e\u8a00\uff0c\u7d93\u5e38\u7528\u65bc\u8207\u6578\u64da\u5eab\u9032\u884c\u4ea4\u4e92\u3002\u7279\u5225\u662f\u5728\u8655\u7406\u7528\u6236\u8f38\u5165\u7684\u6578\u64da\u6642\uff0c\u958b\u767c\u8005\u5e38\u5e38\u9700\u8981\u8003\u616e\u5230\u6578\u64da\u7684\u683c\u5f0f\u554f\u984c\uff0c\u4f8b\u5982\u63db\u884c\u7b26\u865f\u7684\u8655\u7406\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5728PHP\u4e2d\u8b80\u53d6\u548c\u522a\u9664\u5e36\u6709\u63db\u884c\u7684\u6578\u64da\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u4ee3\u78bc\u793a\u4f8b\u3002<\/p>\n

\u6578\u64da\u5eab\u9023\u63a5<\/h2>\n

\u5728\u9032\u884c\u4efb\u4f55\u6578\u64da\u5eab\u64cd\u4f5c\u4e4b\u524d\uff0c\u9996\u5148\u9700\u8981\u5efa\u7acb\u8207\u6578\u64da\u5eab\u7684\u9023\u63a5\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528PDO\uff08PHP Data Objects\uff09\u9023\u63a5MySQL\u6578\u64da\u5eab\u7684\u793a\u4f8b\uff1a<\/p>\n

\nsetAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);\n} catch (PDOException $e) {\n    echo 'Connection failed: ' . $e->getMessage();\n}\n?>\n<\/code><\/pre>\n
\u8b80\u53d6\u5e36\u63db\u884c\u7684\u6578\u64da<\/h2>\n
\u5728\u6578\u64da\u5eab\u4e2d\uff0c\u6578\u64da\u53ef\u80fd\u5305\u542b\u63db\u884c\u7b26\u865f\uff08\u5982n\u6216rn\uff09\u3002\u7576\u8b80\u53d6\u9019\u4e9b\u6578\u64da\u6642\uff0c\u958b\u767c\u8005\u9700\u8981\u78ba\u4fdd\u80fd\u5920\u6b63\u78ba\u8655\u7406\u9019\u4e9b\u7b26\u865f\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u8b80\u53d6\u6578\u64da\u7684\u793a\u4f8b\uff1a<\/p>\n
\nprepare($sql);\n$stmt->execute(['id' => 1]);\n$row = $stmt->fetch(PDO::FETCH_ASSOC);\n\nif ($row) {\n    \/\/ \u4f7f\u7528nl2br()\u51fd\u6578\u5c07\u63db\u884c\u7b26\u8f49\u63db\u70baHTML\u7684
\u6a19\u7c64\n    echo nl2br(htmlspecialchars($row['content']));\n}\n?>\n<\/code><\/pre>\n
\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u6211\u5011\u4f7f\u7528\u4e86`nl2br()`\u51fd\u6578\u5c07\u63db\u884c\u7b26\u8f49\u63db\u70baHTML\u7684`
`\u6a19\u7c64\uff0c\u9019\u6a23\u5728\u7db2\u9801\u4e0a\u986f\u793a\u6642\u5c31\u80fd\u6b63\u78ba\u986f\u793a\u63db\u884c\u6548\u679c\u3002\u540c\u6642\uff0c\u4f7f\u7528`htmlspecialchars()`\u51fd\u6578\u53ef\u4ee5\u9632\u6b62XSS\u653b\u64ca\uff0c\u78ba\u4fdd\u6578\u64da\u7684\u5b89\u5168\u6027\u3002<\/p>\n
\u522a\u9664\u5e36\u63db\u884c\u7684\u6578\u64da<\/h2>\n
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\nprepare($sql);\n$contentToDelete = '%n%'; \/\/ \u67e5\u627e\u5305\u542b\u63db\u884c\u7b26\u7684\u6578\u64da\n$stmt->execute(['content' => $contentToDelete]);\n\necho $stmt->rowCount() . ' rows deleted.';\n?>\n<\/code><\/pre>\n
\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u6211\u5011\u4f7f\u7528\u4e86`LIKE`\u8a9e\u53e5\u4f86\u67e5\u627e\u5305\u542b\u63db\u884c\u7b26\u7684\u6578\u64da\uff0c\u4e26\u5c07\u5176\u522a\u9664\u3002\u9019\u6a23\u53ef\u4ee5\u6709\u6548\u5730\u6e05\u7406\u6578\u64da\u5eab\u4e2d\u7684\u4e0d\u5fc5\u8981\u6578\u64da\u3002<\/p>\n
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\u5728PHP\u4e2d\u8655\u7406\u5e36\u6709\u63db\u884c\u7684\u6578\u64da\u6642\uff0c\u958b\u767c\u8005\u9700\u8981\u7279\u5225\u6ce8\u610f\u6578\u64da\u7684\u8b80\u53d6\u548c\u522a\u9664\u64cd\u4f5c\u3002\u901a\u904e\u4f7f\u7528\u9069\u7576\u7684\u51fd\u6578\u548cSQL\u8a9e\u53e5\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u7ba1\u7406\u6578\u64da\u5eab\u4e2d\u7684\u6578\u64da\uff0c\u78ba\u4fdd\u5176\u5b89\u5168\u6027\u548c\u5b8c\u6574\u6027\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u8655\u7406\u7684\u61c9\u7528\uff0c\u9078\u64c7\u5408\u9069\u7684\u4f3a\u670d\u5668\u74b0\u5883\u81f3\u95dc\u91cd\u8981\u3002\u82e5\u60a8\u5c0d\u65bc\u9999\u6e2fVPS<\/a><\/code>\u6216\u5176\u4ed6\u4f3a\u670d\u5668\u89e3\u6c7a\u65b9\u6848\u611f\u8208\u8da3\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u4fe1\u606f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u638c\u63e1PHP\u6578\u64da\u5eab\u64cd\u4f5c\u6280\u5de7\uff0c\u5b78\u7fd2\u5982\u4f55\u8b80\u53d6\u548c\u522a\u9664\u5e36\u63db\u884c\u7684\u6578\u64da\uff0c\u63d0\u5347\u6578\u64da\u8655\u7406\u6548\u7387\u8207\u6e96\u78ba\u6027\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-96616","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/96616","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=96616"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/96616\/revisions"}],"predecessor-version":[{"id":96617,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/96616\/revisions\/96617"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=96616"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=96616"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=96616"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}