{"id":96474,"date":"2024-10-20T09:45:21","date_gmt":"2024-10-20T01:45:21","guid":{"rendered":"https:\/\/server.hk\/cnblog\/96474\/"},"modified":"2024-10-20T09:45:21","modified_gmt":"2024-10-20T01:45:21","slug":"php%e8%ae%8a%e9%87%8f%e5%9c%a8%e6%95%b8%e6%93%9a%e5%ba%ab%e4%b8%ad%e7%9a%84%e4%bd%bf%e7%94%a8%e6%96%b9%e6%b3%95%e3%80%82-%e6%95%b8%e6%93%9a%e5%ba%ab%e4%b8%adphp%e8%ae%8a%e9%87%8f%e6%80%8e%e9%ba%bc","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/96474\/","title":{"rendered":"PHP\u8b8a\u91cf\u5728\u6578\u64da\u5eab\u4e2d\u7684\u4f7f\u7528\u65b9\u6cd5\u3002 (\u6578\u64da\u5eab\u4e2dphp\u8b8a\u91cf\u600e\u9ebc\u4f7f\u7528\u65b9\u6cd5)"},"content":{"rendered":"

PHP\u8b8a\u91cf\u5728\u6578\u64da\u5eab\u4e2d\u7684\u4f7f\u7528\u65b9\u6cd5<\/h1>\n

\u5728\u73fe\u4ee3\u7db2\u9801\u958b\u767c\u4e2d\uff0cPHP\u4f5c\u70ba\u4e00\u7a2e\u6d41\u884c\u7684\u4f3a\u670d\u5668\u7aef\u8173\u672c\u8a9e\u8a00\uff0c\u7d93\u5e38\u88ab\u7528\u4f86\u8207\u6578\u64da\u5eab\u9032\u884c\u4ea4\u4e92\u3002\u7121\u8ad6\u662f\u7528\u65bc\u7528\u6236\u767b\u9304\u3001\u6578\u64da\u5b58\u5132\u9084\u662f\u6578\u64da\u6aa2\u7d22\uff0cPHP\u8b8a\u91cf\u5728\u6578\u64da\u5eab\u64cd\u4f5c\u4e2d\u626e\u6f14\u8457\u81f3\u95dc\u91cd\u8981\u7684\u89d2\u8272\u3002\u672c\u6587\u5c07\u63a2\u8a0ePHP\u8b8a\u91cf\u5728\u6578\u64da\u5eab\u4e2d\u7684\u4f7f\u7528\u65b9\u6cd5\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u793a\u4f8b\u548c\u4ee3\u78bc\u7247\u6bb5\u3002<\/p>\n

1. \u4ec0\u9ebc\u662fPHP\u8b8a\u91cf\uff1f<\/h2>\n

PHP\u8b8a\u91cf\u662f\u7528\u4f86\u5b58\u5132\u6578\u64da\u7684\u5bb9\u5668\uff0c\u8b8a\u91cf\u7684\u540d\u7a31\u4ee5\u7f8e\u5143\u7b26\u865f\uff08$\uff09\u958b\u982d\u3002\u8b8a\u91cf\u53ef\u4ee5\u5b58\u5132\u4e0d\u540c\u985e\u578b\u7684\u6578\u64da\uff0c\u5305\u62ec\u5b57\u7b26\u4e32\u3001\u6574\u6578\u3001\u6578\u7d44\u7b49\u3002\u5728\u8207\u6578\u64da\u5eab\u4ea4\u4e92\u6642\uff0c\u9019\u4e9b\u8b8a\u91cf\u901a\u5e38\u7528\u4f86\u5b58\u5132\u7528\u6236\u8f38\u5165\u7684\u6578\u64da\u6216\u5f9e\u6578\u64da\u5eab\u6aa2\u7d22\u7684\u6578\u64da\u3002<\/p>\n

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

\u5728\u4f7f\u7528PHP\u8b8a\u91cf\u8207\u6578\u64da\u5eab\u9032\u884c\u4ea4\u4e92\u4e4b\u524d\uff0c\u9996\u5148\u9700\u8981\u5efa\u7acb\u8207\u6578\u64da\u5eab\u7684\u9023\u63a5\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528MySQLi\u64f4\u5c55\u9023\u63a5\u6578\u64da\u5eab\u7684\u57fa\u672c\u793a\u4f8b\uff1a<\/p>\n

\n$servername = \"localhost\";\n$username = \"username\";\n$password = \"password\";\n$dbname = \"database_name\";\n\n\/\/ \u5275\u5efa\u9023\u63a5\n$conn = new mysqli($servername, $username, $password, $dbname);\n\n\/\/ \u6aa2\u67e5\u9023\u63a5\nif ($conn->connect_error) {\n    die(\"\u9023\u63a5\u5931\u6557: \" . $conn->connect_error);\n}\n<\/code><\/pre>\n
3. \u63d2\u5165\u6578\u64da<\/h2>\n
\u4e00\u65e6\u6210\u529f\u9023\u63a5\u5230\u6578\u64da\u5eab\uff0c\u5c31\u53ef\u4ee5\u4f7f\u7528PHP\u8b8a\u91cf\u4f86\u63d2\u5165\u6578\u64da\u3002\u4ee5\u4e0b\u662f\u63d2\u5165\u6578\u64da\u7684\u793a\u4f8b\uff1a<\/p>\n
\n$name = \"John Doe\";\n$email = \"john@example.com\";\n\n$sql = \"INSERT INTO users (name, email) VALUES ('$name', '$email')\";\n\nif ($conn->query($sql) === TRUE) {\n    echo \"\u65b0\u8a18\u9304\u63d2\u5165\u6210\u529f\";\n} else {\n    echo \"\u932f\u8aa4: \" . $sql . \"
\" . $conn->error;\n}\n<\/code><\/pre>\n
\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0c\u8b8a\u91cf$name\u548c$email\u7528\u4f86\u5b58\u5132\u7528\u6236\u7684\u59d3\u540d\u548c\u96fb\u5b50\u90f5\u4ef6\u5730\u5740\uff0c\u7136\u5f8c\u5c07\u9019\u4e9b\u8b8a\u91cf\u63d2\u5165\u5230\u6578\u64da\u5eab\u7684users\u8868\u4e2d\u3002<\/p>\n
4. \u6aa2\u7d22\u6578\u64da<\/h2>\n
\u9664\u4e86\u63d2\u5165\u6578\u64da\uff0cPHP\u8b8a\u91cf\u9084\u53ef\u4ee5\u7528\u4f86\u6aa2\u7d22\u6578\u64da\u3002\u4ee5\u4e0b\u662f\u5f9e\u6578\u64da\u5eab\u4e2d\u6aa2\u7d22\u6578\u64da\u7684\u793a\u4f8b\uff1a<\/p>\n
\n$sql = \"SELECT id, name, email FROM users\";\n$result = $conn->query($sql);\n\nif ($result->num_rows > 0) {\n    \/\/ \u8f38\u51fa\u6bcf\u884c\u6578\u64da\n    while($row = $result->fetch_assoc()) {\n        echo \"id: \" . $row[\"id\"]. \" - Name: \" . $row[\"name\"]. \" - Email: \" . $row[\"email\"]. \"
\";\n    }\n} else {\n    echo \"0 \u7d50\u679c\";\n}\n<\/code><\/pre>\n
\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0c\u4f7f\u7528SQL\u67e5\u8a62\u5f9eusers\u8868\u4e2d\u6aa2\u7d22\u6240\u6709\u7528\u6236\u7684ID\u3001\u59d3\u540d\u548c\u96fb\u5b50\u90f5\u4ef6\uff0c\u4e26\u5c07\u7d50\u679c\u8f38\u51fa\u5230\u7db2\u9801\u4e0a\u3002<\/p>\n
5. \u66f4\u65b0\u6578\u64da<\/h2>\n
\u5982\u679c\u9700\u8981\u66f4\u65b0\u6578\u64da\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u78bc\uff1a<\/p>\n
\n$id = 1;\n$new_email = \"john.doe@example.com\";\n\n$sql = \"UPDATE users SET email='$new_email' WHERE id=$id\";\n\nif ($conn->query($sql) === TRUE) {\n    echo \"\u8a18\u9304\u66f4\u65b0\u6210\u529f\";\n} else {\n    echo \"\u932f\u8aa4: \" . $conn->error;\n}\n<\/code><\/pre>\n
\u9019\u6bb5\u4ee3\u78bc\u5c07\u7528\u6236ID\u70ba1\u7684\u96fb\u5b50\u90f5\u4ef6\u66f4\u65b0\u70ba\u65b0\u7684\u96fb\u5b50\u90f5\u4ef6\u5730\u5740\u3002<\/p>\n
6. \u522a\u9664\u6578\u64da<\/h2>\n
\u6700\u5f8c\uff0c\u5982\u679c\u9700\u8981\u522a\u9664\u6578\u64da\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u78bc\uff1a<\/p>\n
\n$id = 1;\n\n$sql = \"DELETE FROM users WHERE id=$id\";\n\nif ($conn->query($sql) === TRUE) {\n    echo \"\u8a18\u9304\u522a\u9664\u6210\u529f\";\n} else {\n    echo \"\u932f\u8aa4: \" . $conn->error;\n}\n<\/code><\/pre>\n
\u9019\u6bb5\u4ee3\u78bc\u5c07\u522a\u9664ID\u70ba1\u7684\u7528\u6236\u8a18\u9304\u3002<\/p>\n
\u7e3d\u7d50<\/h2>\n
PHP\u8b8a\u91cf\u5728\u6578\u64da\u5eab\u64cd\u4f5c\u4e2d\u662f\u4e0d\u53ef\u6216\u7f3a\u7684\uff0c\u7121\u8ad6\u662f\u63d2\u5165\u3001\u6aa2\u7d22\u3001\u66f4\u65b0\u9084\u662f\u522a\u9664\u6578\u64da\uff0c\u8b8a\u91cf\u90fd\u80fd\u6709\u6548\u5730\u5e6b\u52a9\u958b\u767c\u8005\u9032\u884c\u6578\u64da\u7ba1\u7406\u3002\u901a\u904e\u6b63\u78ba\u4f7f\u7528PHP\u8b8a\u91cf\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u69cb\u5efa\u51fa\u529f\u80fd\u5f37\u5927\u7684\u61c9\u7528\u7a0b\u5e8f\uff0c\u4e26\u63d0\u5347\u7528\u6236\u9ad4\u9a57\u3002\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u7a69\u5b9a\u7684 VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4f86\u652f\u6301\u60a8\u7684\u7db2\u7ad9\u6216\u61c9\u7528\u7a0b\u5e8f\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\u4ee5\u6eff\u8db3\u60a8\u7684\u9700\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u4e86\u89e3\u5982\u4f55\u5728\u6578\u64da\u5eab\u4e2d\u4f7f\u7528PHP\u8b8a\u91cf\uff0c\u5305\u62ec\u9023\u63a5\u3001\u67e5\u8a62\u548c\u6578\u64da\u63d2\u5165\u7684\u5be6\u7528\u65b9\u6cd5\u8207\u793a\u4f8b\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-96474","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/96474","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=96474"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/96474\/revisions"}],"predecessor-version":[{"id":96475,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/96474\/revisions\/96475"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=96474"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=96474"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=96474"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}