{"id":182412,"date":"2024-11-09T22:13:18","date_gmt":"2024-11-09T14:13:18","guid":{"rendered":"https:\/\/server.hk\/cnblog\/182412\/"},"modified":"2024-11-09T22:13:19","modified_gmt":"2024-11-09T14:13:19","slug":"%e4%bb%80%e9%ba%bc%e6%98%af%e5%b8%b6%e5%95%8f%e8%99%9f%e7%9a%84%e6%95%b8%e6%93%9a%e5%ba%ab%e8%aa%9e%e5%8f%a5%ef%bc%9f%ef%bc%88%e6%95%b8%e6%93%9a%e5%ba%ab%e8%aa%9e%e5%8f%a5%e5%b8%b6%e5%95%8f%e8%99%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/182412\/","title":{"rendered":"\u4ec0\u9ebc\u662f\u5e36\u554f\u865f\u7684\u6578\u64da\u5eab\u8a9e\u53e5\uff1f\uff08\u6578\u64da\u5eab\u8a9e\u53e5\u5e36\u554f\u865f\uff09"},"content":{"rendered":"<h1 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e5%b8%b6%e5%95%8f%e8%99%9f%e7%9a%84%e6%95%b8%e6%93%9a%e5%ba%ab%e8%aa%9e%e5%8f%a5%ef%bc%9f%ef%bc%88%e6%95%b8%e6%93%9a%e5%ba%ab%e8%aa%9e%e5%8f%a5%e5%b8%b6%e5%95%8f%e8%99%9f-PmHjyQkSNi\">\u4ec0\u9ebc\u662f\u5e36\u554f\u865f\u7684\u6578\u64da\u5eab\u8a9e\u53e5\uff1f\uff08\u6578\u64da\u5eab\u8a9e\u53e5\u5e36\u554f\u865f\uff09<\/h1>\n<p>\u5728\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\u4e2d\uff0c\u6578\u64da\u5eab\u8a9e\u53e5\u662f\u7528\u4f86\u8207\u6578\u64da\u5eab\u9032\u884c\u4ea4\u4e92\u7684\u6307\u4ee4\u3002\u9019\u4e9b\u8a9e\u53e5\u53ef\u4ee5\u7528\u4f86\u67e5\u8a62\u3001\u63d2\u5165\u3001\u66f4\u65b0\u6216\u522a\u9664\u6578\u64da\u3002\u5e36\u554f\u865f\u7684\u6578\u64da\u5eab\u8a9e\u53e5\uff0c\u901a\u5e38\u6307\u7684\u662f\u4f7f\u7528\u4f54\u4f4d\u7b26\uff08placeholder\uff09\u4f86\u8868\u793a\u5c07\u8981\u63d2\u5165\u6216\u67e5\u8a62\u7684\u6578\u64da\u3002\u9019\u7a2e\u65b9\u5f0f\u5728\u8a31\u591a\u7de8\u7a0b\u8a9e\u8a00\u548c\u6578\u64da\u5eab\u9a45\u52d5\u4e2d\u90fd\u88ab\u5ee3\u6cdb\u4f7f\u7528\uff0c\u7279\u5225\u662f\u5728\u8655\u7406\u7528\u6236\u8f38\u5165\u6642\u3002<\/p>\n<h2 id=\"%e5%b8%b6%e5%95%8f%e8%99%9f%e7%9a%84%e6%95%b8%e6%93%9a%e5%ba%ab%e8%aa%9e%e5%8f%a5%e7%9a%84%e5%9f%ba%e6%9c%ac%e6%a6%82%e5%bf%b5-PmHjyQkSNi\">\u5e36\u554f\u865f\u7684\u6578\u64da\u5eab\u8a9e\u53e5\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n<p>\u5e36\u554f\u865f\u7684\u6578\u64da\u5eab\u8a9e\u53e5\u901a\u5e38\u662f\u6307\u4f7f\u7528\u4f54\u4f4d\u7b26\u7684\u9810\u8655\u7406\u8a9e\u53e5\uff08prepared statements\uff09\u3002\u9019\u4e9b\u4f54\u4f4d\u7b26\u5728\u57f7\u884c\u6642\u6703\u88ab\u5177\u9ad4\u7684\u6578\u64da\u66ff\u63db\u3002\u9019\u7a2e\u65b9\u6cd5\u7684\u4e3b\u8981\u512a\u9ede\u662f\u53ef\u4ee5\u9632\u6b62SQL\u6ce8\u5165\u653b\u64ca\uff0c\u56e0\u70ba\u7528\u6236\u8f38\u5165\u7684\u6578\u64da\u4e0d\u6703\u76f4\u63a5\u62fc\u63a5\u5230SQL\u8a9e\u53e5\u4e2d\uff0c\u800c\u662f\u901a\u904e\u4f54\u4f4d\u7b26\u9032\u884c\u5b89\u5168\u8655\u7406\u3002<\/p>\n<h3 id=\"%e7%a4%ba%e4%be%8b%ef%bc%9a%e4%bd%bf%e7%94%a8%e5%b8%b6%e5%95%8f%e8%99%9f%e7%9a%84%e6%95%b8%e6%93%9a%e5%ba%ab%e8%aa%9e%e5%8f%a5-PmHjyQkSNi\">\u793a\u4f8b\uff1a\u4f7f\u7528\u5e36\u554f\u865f\u7684\u6578\u64da\u5eab\u8a9e\u53e5<\/h3>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528PHP\u548cMySQLi\u7684\u793a\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u4f7f\u7528\u5e36\u554f\u865f\u7684\u6578\u64da\u5eab\u8a9e\u53e5\uff1a<\/p>\n<pre><code>&lt;?php\n\/\/ \u5275\u5efa\u6578\u64da\u5eab\u9023\u63a5\n$conn = new mysqli(\"localhost\", \"username\", \"password\", \"database\");\n\n\/\/ \u6aa2\u67e5\u9023\u63a5\nif ($conn-&gt;connect_error) {\n    die(\"\u9023\u63a5\u5931\u6557: \" . $conn-&gt;connect_error);\n}\n\n\/\/ \u6e96\u5099SQL\u8a9e\u53e5\n$stmt = $conn-&gt;prepare(\"SELECT * FROM users WHERE email = ?\");\n\n\/\/ \u7d81\u5b9a\u53c3\u6578\n$stmt-&gt;bind_param(\"s\", $email);\n\n\/\/ \u8a2d\u7f6e\u53c3\u6578\u4e26\u57f7\u884c\n$email = \"user@example.com\";\n$stmt-&gt;execute();\n\n\/\/ \u7372\u53d6\u7d50\u679c\n$result = $stmt-&gt;get_result();\nwhile ($row = $result-&gt;fetch_assoc()) {\n    echo \"\u7528\u6236\u540d: \" . $row[\"username\"] . \"&lt;br&gt;\";\n}\n\n\/\/ \u95dc\u9589\u9023\u63a5\n$stmt-&gt;close();\n$conn-&gt;close();\n?&gt;<\/code><\/pre>\n<p>\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0c\u6211\u5011\u4f7f\u7528\u4e86`?`\u4f5c\u70ba\u4f54\u4f4d\u7b26\uff0c\u4e26\u901a\u904e`bind_param`\u65b9\u6cd5\u5c07\u5177\u9ad4\u7684\u7528\u6236\u8f38\u5165\u7d81\u5b9a\u5230\u9019\u500b\u4f54\u4f4d\u7b26\u4e0a\u3002\u9019\u6a23\u53ef\u4ee5\u6709\u6548\u5730\u9632\u6b62SQL\u6ce8\u5165\uff0c\u56e0\u70ba\u7528\u6236\u8f38\u5165\u7684\u6578\u64da\u4e0d\u6703\u76f4\u63a5\u62fc\u63a5\u5230SQL\u8a9e\u53e5\u4e2d\u3002<\/p>\n<h2 id=\"%e5%b8%b6%e5%95%8f%e8%99%9f%e7%9a%84%e6%95%b8%e6%93%9a%e5%ba%ab%e8%aa%9e%e5%8f%a5%e7%9a%84%e5%84%aa%e5%8b%a2-PmHjyQkSNi\">\u5e36\u554f\u865f\u7684\u6578\u64da\u5eab\u8a9e\u53e5\u7684\u512a\u52e2<\/h2>\n<ul>\n<li><strong>\u5b89\u5168\u6027\uff1a<\/strong>\u4f7f\u7528\u4f54\u4f4d\u7b26\u53ef\u4ee5\u6709\u6548\u9632\u6b62SQL\u6ce8\u5165\u653b\u64ca\uff0c\u4fdd\u8b77\u6578\u64da\u5eab\u7684\u5b89\u5168\u3002<\/li>\n<li><strong>\u6027\u80fd\uff1a<\/strong>\u9810\u8655\u7406\u8a9e\u53e5\u53ef\u4ee5\u88ab\u91cd\u8907\u4f7f\u7528\uff0c\u9019\u6a23\u53ef\u4ee5\u63d0\u9ad8\u6027\u80fd\uff0c\u7279\u5225\u662f\u5728\u9700\u8981\u591a\u6b21\u57f7\u884c\u76f8\u540c\u8a9e\u53e5\u7684\u60c5\u6cc1\u4e0b\u3002<\/li>\n<li><strong>\u53ef\u8b80\u6027\uff1a<\/strong>\u5c07SQL\u8a9e\u53e5\u8207\u6578\u64da\u5206\u958b\uff0c\u4f7f\u5f97\u4ee3\u78bc\u66f4\u6613\u65bc\u95b1\u8b80\u548c\u7dad\u8b77\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b5%90%e8%ab%96-PmHjyQkSNi\">\u7d50\u8ad6<\/h2>\n<p>\u5e36\u554f\u865f\u7684\u6578\u64da\u5eab\u8a9e\u53e5\u662f\u4e00\u7a2e\u5b89\u5168\u4e14\u9ad8\u6548\u7684\u6578\u64da\u5eab\u64cd\u4f5c\u65b9\u5f0f\uff0c\u7279\u5225\u9069\u5408\u8655\u7406\u7528\u6236\u8f38\u5165\u7684\u6578\u64da\u3002\u901a\u904e\u4f7f\u7528\u4f54\u4f4d\u7b26\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u6709\u6548\u5730\u9632\u6b62SQL\u6ce8\u5165\u653b\u64ca\uff0c\u4e26\u63d0\u9ad8\u4ee3\u78bc\u7684\u53ef\u8b80\u6027\u548c\u6027\u80fd\u3002\u5728\u7576\u4eca\u7684\u7db2\u7d61\u61c9\u7528\u4e2d\uff0c\u9019\u7a2e\u6280\u8853\u5df2\u7d93\u6210\u70ba\u6700\u4f73\u5be6\u8e10\u4e4b\u4e00\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u53ef\u9760\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u4e0d\u540c\u9700\u6c42\u7684\u5ba2\u6236\u3002\u7121\u8ad6\u662f\u500b\u4eba\u9805\u76ee\u9084\u662f\u4f01\u696d\u61c9\u7528\uff0c\u6211\u5011\u7684 <a href=\"https:\/\/server.hk\">\u4f3a\u670d\u5668<\/a> \u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u7a69\u5b9a\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5e36\u554f\u865f\u7684\u6578\u64da\u5eab\u8a9e\u53e5\u662f\u6307\u4f7f\u7528\u4f54\u4f4d\u7b26\uff08?\uff09\u7684\u67e5\u8a62\u8a9e\u53e5\uff0c\u5e38\u7528\u65bc\u9632\u6b62SQL\u6ce8\u5165\u548c\u63d0\u9ad8\u67e5\u8a62\u6548\u7387\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-182412","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/182412","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=182412"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/182412\/revisions"}],"predecessor-version":[{"id":182413,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/182412\/revisions\/182413"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=182412"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=182412"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=182412"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}