{"id":96540,"date":"2024-10-20T10:18:21","date_gmt":"2024-10-20T02:18:21","guid":{"rendered":"https:\/\/server.hk\/cnblog\/96540\/"},"modified":"2024-10-20T10:18:21","modified_gmt":"2024-10-20T02:18:21","slug":"php%e9%80%a3%e6%8e%a5mysql%e6%95%b8%e6%93%9a%e5%ba%ab%e7%9a%84%e6%93%8d%e4%bd%9c%e8%88%87%e6%87%89%e7%94%a8%e4%bb%a3%e7%a2%bc","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/96540\/","title":{"rendered":"php\u9023\u63a5MySQL\u6578\u64da\u5eab\u7684\u64cd\u4f5c\u8207\u61c9\u7528\u4ee3\u78bc"},"content":{"rendered":"

PHP\u9023\u63a5MySQL\u6578\u64da\u5eab\u7684\u64cd\u4f5c\u8207\u61c9\u7528\u4ee3\u78bc<\/h1>\n

\u5728\u7576\u4eca\u7684\u7db2\u7d61\u958b\u767c\u4e2d\uff0cPHP\u548cMySQL\u7684\u7d44\u5408\u662f\u6700\u5e38\u898b\u7684\u6280\u8853\u4e4b\u4e00\u3002PHP\u662f\u4e00\u7a2e\u5ee3\u6cdb\u4f7f\u7528\u7684\u958b\u6e90\u8173\u672c\u8a9e\u8a00\uff0c\u800cMySQL\u5247\u662f\u4e00\u500b\u6d41\u884c\u7684\u95dc\u4fc2\u578b\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u4f7f\u7528PHP\u9023\u63a5MySQL\u6578\u64da\u5eab\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u57fa\u672c\u7684\u64cd\u4f5c\u4ee3\u78bc\u793a\u4f8b\u3002<\/p>\n

1. \u74b0\u5883\u6e96\u5099<\/h2>\n

\u5728\u958b\u59cb\u4e4b\u524d\uff0c\u60a8\u9700\u8981\u78ba\u4fdd\u60a8\u7684\u4f3a\u670d\u5668\u4e0a\u5df2\u5b89\u88ddPHP\u548cMySQL\u3002\u5927\u591a\u6578VPS\u4e3b\u6a5f\u90fd\u6703\u9810\u88dd\u9019\u4e9b\u8edf\u4ef6\uff0c\u60a8\u53ef\u4ee5\u901a\u904e\u4ee5\u4e0b\u547d\u4ee4\u6aa2\u67e5\u5b83\u5011\u7684\u7248\u672c\uff1a<\/p>\n

php -v\nmysql --version<\/code><\/pre>\n
2. \u9023\u63a5MySQL\u6578\u64da\u5eab<\/h2>\n
\u8981\u9023\u63a5MySQL\u6578\u64da\u5eab\uff0c\u60a8\u9700\u8981\u4f7f\u7528PHP\u7684mysqli\u64f4\u5c55\u6216PDO\uff08PHP Data Objects\uff09\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528mysqli\u64f4\u5c55\u7684\u57fa\u672c\u9023\u63a5\u4ee3\u78bc\uff1a<\/p>\n
<?php\n$servername = \"localhost\"; \/\/ \u4f3a\u670d\u5668\u540d\u7a31\n$username = \"username\"; \/\/ \u7528\u6236\u540d\n$password = \"password\"; \/\/ \u5bc6\u78bc\n$dbname = \"database_name\"; \/\/ \u6578\u64da\u5eab\u540d\u7a31\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: \" . $conn->connect_error);\n}\necho \"\u9023\u63a5\u6210\u529f\";\n?><\/code><\/pre>\n
3. \u57f7\u884c\u57fa\u672c\u7684SQL\u64cd\u4f5c<\/h2>\n
3.1 \u5275\u5efa\u6578\u64da\u8868<\/h3>\n
\u5728\u9023\u63a5\u6210\u529f\u5f8c\uff0c\u60a8\u53ef\u4ee5\u5275\u5efa\u6578\u64da\u8868\u3002\u4ee5\u4e0b\u662f\u5275\u5efa\u4e00\u500b\u7c21\u55ae\u7684\u7528\u6236\u8868\u7684\u4ee3\u78bc\uff1a<\/p>\n
<?php\n$sql = \"CREATE TABLE Users (\n    id INT(6) UNSIGNED AUTO_INCREMENT PRIMARY KEY,\n    username VARCHAR(30) NOT NULL,\n    email VARCHAR(50),\n    reg_date TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP\n)\";\n\nif ($conn->query($sql) === TRUE) {\n    echo \"\u8868 Users \u5275\u5efa\u6210\u529f\";\n} else {\n    echo \"\u932f\u8aa4\u5275\u5efa\u8868: \" . $conn->error;\n}\n?><\/code><\/pre>\n
3.2 \u63d2\u5165\u6578\u64da<\/h3>\n
\u63a5\u4e0b\u4f86\uff0c\u60a8\u53ef\u4ee5\u5411\u8868\u4e2d\u63d2\u5165\u6578\u64da\uff1a<\/p>\n
<?php\n$sql = \"INSERT INTO Users (username, email) VALUES ('JohnDoe', 'john@example.com')\";\n\nif ($conn->query($sql) === TRUE) {\n    echo \"\u65b0\u8a18\u9304\u63d2\u5165\u6210\u529f\";\n} else {\n    echo \"\u932f\u8aa4: \" . $sql . \"<br>\" . $conn->error;\n}\n?><\/code><\/pre>\n
3.3 \u67e5\u8a62\u6578\u64da<\/h3>\n
\u8981\u67e5\u8a62\u6578\u64da\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528SELECT\u8a9e\u53e5\uff1a<\/p>\n
<?php\n$sql = \"SELECT id, username, 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[\"username\"]. \" - Email: \" . $row[\"email\"]. \"<br>\";\n    }\n} else {\n    echo \"0 \u7d50\u679c\";\n}\n?><\/code><\/pre>\n
3.4 \u66f4\u65b0\u6578\u64da<\/h3>\n
\u66f4\u65b0\u6578\u64da\u7684\u4ee3\u78bc\u5982\u4e0b\uff1a<\/p>\n
<?php\n$sql = \"UPDATE Users SET email='john.doe@example.com' WHERE username='JohnDoe'\";\n\nif ($conn->query($sql) === TRUE) {\n    echo \"\u8a18\u9304\u66f4\u65b0\u6210\u529f\";\n} else {\n    echo \"\u932f\u8aa4\u66f4\u65b0\u8a18\u9304: \" . $conn->error;\n}\n?><\/code><\/pre>\n
3.5 \u522a\u9664\u6578\u64da<\/h3>\n
\u6700\u5f8c\uff0c\u60a8\u53ef\u4ee5\u522a\u9664\u6578\u64da\uff1a<\/p>\n
<?php\n$sql = \"DELETE FROM Users WHERE username='JohnDoe'\";\n\nif ($conn->query($sql) === TRUE) {\n    echo \"\u8a18\u9304\u522a\u9664\u6210\u529f\";\n} else {\n    echo \"\u932f\u8aa4\u522a\u9664\u8a18\u9304: \" . $conn->error;\n}\n?><\/code><\/pre>\n
4. \u95dc\u9589\u9023\u63a5<\/h2>\n
\u5b8c\u6210\u6240\u6709\u64cd\u4f5c\u5f8c\uff0c\u8a18\u5f97\u95dc\u9589\u6578\u64da\u5eab\u9023\u63a5\uff1a<\/p>\n
<?php\n$conn->close();\n?><\/code><\/pre>\n
\u7e3d\u7d50<\/h2>\n
\u672c\u6587\u4ecb\u7d39\u4e86\u5982\u4f55\u4f7f\u7528PHP\u9023\u63a5MySQL\u6578\u64da\u5eab\uff0c\u4e26\u63d0\u4f9b\u4e86\u4e00\u4e9b\u57fa\u672c\u7684\u64cd\u4f5c\u4ee3\u78bc\u793a\u4f8b\u3002\u9019\u4e9b\u64cd\u4f5c\u5305\u62ec\u5275\u5efa\u6578\u64da\u8868\u3001\u63d2\u5165\u3001\u67e5\u8a62\u3001\u66f4\u65b0\u548c\u522a\u9664\u6578\u64da\u3002\u638c\u63e1\u9019\u4e9b\u57fa\u672c\u64cd\u4f5c\u5f8c\uff0c\u60a8\u53ef\u4ee5\u5728\u81ea\u5df1\u7684\u9805\u76ee\u4e2d\u9748\u6d3b\u61c9\u7528\u3002<\/p>\n
\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u7a69\u5b9a\u7684 \u9999\u6e2fVPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u9069\u5408\u4e0d\u540c\u9700\u6c42\u7684\u7528\u6236\u3002\u7121\u8ad6\u662f\u500b\u4eba\u9805\u76ee\u9084\u662f\u5546\u696d\u61c9\u7528\uff0c\u6211\u5011\u7684 \u4f3a\u670d\u5668<\/a> \u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u53ef\u9760\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u63a2\u7d22PHP\u9023\u63a5MySQL\u6578\u64da\u5eab\u7684\u64cd\u4f5c\u8207\u61c9\u7528\u4ee3\u78bc\uff0c\u5b78\u7fd2\u5982\u4f55\u9ad8\u6548\u7ba1\u7406\u6578\u64da\u548c\u5be6\u73fe\u52d5\u614b\u7db2\u7ad9\u529f\u80fd\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-96540","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/96540","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=96540"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/96540\/revisions"}],"predecessor-version":[{"id":96541,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/96540\/revisions\/96541"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=96540"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=96540"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=96540"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}