{"id":96478,"date":"2024-10-20T09:47:17","date_gmt":"2024-10-20T01:47:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/96478\/"},"modified":"2024-10-20T09:47:17","modified_gmt":"2024-10-20T01:47:17","slug":"php%e6%93%8d%e4%bd%9cmysql%e6%95%b8%e6%93%9a%e5%ba%ab%e4%b8%ad%e8%aa%9e%e5%8f%a5%e5%9f%ba%e7%a4%8e%e6%87%89%e7%94%a8%e5%a4%a7%e5%85%a8","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/96478\/","title":{"rendered":"php\u64cd\u4f5cMySQL\u6578\u64da\u5eab\u4e2d\u8a9e\u53e5\u57fa\u790e\u61c9\u7528\u5927\u5168"},"content":{"rendered":"<h1 id=\"php%e6%93%8d%e4%bd%9cmysql%e6%95%b8%e6%93%9a%e5%ba%ab%e4%b8%ad%e8%aa%9e%e5%8f%a5%e5%9f%ba%e7%a4%8e%e6%87%89%e7%94%a8%e5%a4%a7%e5%85%a8-xHudyXhkMQ\">PHP\u64cd\u4f5cMySQL\u6578\u64da\u5eab\u4e2d\u8a9e\u53e5\u57fa\u790e\u61c9\u7528\u5927\u5168<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u7db2\u7d61\u958b\u767c\u4e2d\uff0cPHP\u548cMySQL\u7684\u7d44\u5408\u662f\u6700\u53d7\u6b61\u8fce\u7684\u6280\u8853\u4e4b\u4e00\u3002\u9019\u7a2e\u7d44\u5408\u4e0d\u50c5\u56e0\u70ba\u5176\u958b\u6e90\u7279\u6027\uff0c\u9084\u56e0\u70ba\u5b83\u5011\u7684\u9748\u6d3b\u6027\u548c\u9ad8\u6548\u6027\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0ePHP\u64cd\u4f5cMySQL\u6578\u64da\u5eab\u7684\u57fa\u672c\u8a9e\u53e5\u53ca\u5176\u61c9\u7528\uff0c\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u597d\u5730\u7406\u89e3\u5982\u4f55\u5728\u5be6\u969b\u9805\u76ee\u4e2d\u4f7f\u7528\u9019\u4e9b\u6280\u8853\u3002<\/p>\n<h2 id=\"1-%e9%80%a3%e6%8e%a5mysql%e6%95%b8%e6%93%9a%e5%ba%ab-xHudyXhkMQ\">1. \u9023\u63a5MySQL\u6578\u64da\u5eab<\/h2>\n<p>\u5728\u4f7f\u7528PHP\u64cd\u4f5cMySQL\u6578\u64da\u5eab\u4e4b\u524d\uff0c\u9996\u5148\u9700\u8981\u5efa\u7acb\u8207\u6578\u64da\u5eab\u7684\u9023\u63a5\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u78bc\u4f86\u5be6\u73fe\uff1a<\/p>\n<pre><code>\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-&gt;connect_error) {\n    die(\"\u9023\u63a5\u5931\u6557: \" . $conn-&gt;connect_error);\n}\necho \"\u9023\u63a5\u6210\u529f\";\n<\/code><\/pre>\n<h2 id=\"2-%e5%89%b5%e5%bb%ba%e6%95%b8%e6%93%9a%e8%a1%a8-xHudyXhkMQ\">2. \u5275\u5efa\u6578\u64da\u8868<\/h2>\n<p>\u5728\u9023\u63a5\u6210\u529f\u5f8c\uff0c\u53ef\u4ee5\u5275\u5efa\u6578\u64da\u8868\u3002\u4ee5\u4e0b\u662f\u5275\u5efa\u4e00\u500b\u7c21\u55ae\u7528\u6236\u8868\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>\n$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\n)\";\n\nif ($conn-&gt;query($sql) === TRUE) {\n    echo \"\u8868\u683c\u5275\u5efa\u6210\u529f\";\n} else {\n    echo \"\u932f\u8aa4: \" . $sql . \"<br>\" . $conn-&gt;error;\n}\n<\/code><\/pre>\n<h2 id=\"3-%e6%8f%92%e5%85%a5%e6%95%b8%e6%93%9a-xHudyXhkMQ\">3. \u63d2\u5165\u6578\u64da<\/h2>\n<p>\u5275\u5efa\u8868\u683c\u5f8c\uff0c\u53ef\u4ee5\u63d2\u5165\u6578\u64da\u3002\u4ee5\u4e0b\u662f\u63d2\u5165\u6578\u64da\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>\n$sql = \"INSERT INTO Users (username, email) VALUES ('JohnDoe', 'john@example.com')\";\n\nif ($conn-&gt;query($sql) === TRUE) {\n    echo \"\u65b0\u8a18\u9304\u63d2\u5165\u6210\u529f\";\n} else {\n    echo \"\u932f\u8aa4: \" . $sql . \"<br>\" . $conn-&gt;error;\n}\n<\/code><\/pre>\n<h2 id=\"4-%e6%9f%a5%e8%a9%a2%e6%95%b8%e6%93%9a-xHudyXhkMQ\">4. \u67e5\u8a62\u6578\u64da<\/h2>\n<p>\u67e5\u8a62\u6578\u64da\u662f\u64cd\u4f5c\u6578\u64da\u5eab\u4e2d\u6700\u5e38\u898b\u7684\u4efb\u52d9\u4e4b\u4e00\u3002\u4ee5\u4e0b\u662f\u67e5\u8a62\u7528\u6236\u8868\u4e2d\u6240\u6709\u7528\u6236\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>\n$sql = \"SELECT id, username, email FROM Users\";\n$result = $conn-&gt;query($sql);\n\nif ($result-&gt;num_rows &gt; 0) {\n    \/\/ \u8f38\u51fa\u6bcf\u884c\u6578\u64da\n    while($row = $result-&gt;fetch_assoc()) {\n        echo \"id: \" . $row[\"id\"]. \" - Name: \" . $row[\"username\"]. \" - Email: \" . $row[\"email\"]. \"<br>\";\n    }\n} else {\n    echo \"0 \u7d50\u679c\";\n}\n<\/code><\/pre>\n<h2 id=\"5-%e6%9b%b4%e6%96%b0%e6%95%b8%e6%93%9a-xHudyXhkMQ\">5. \u66f4\u65b0\u6578\u64da<\/h2>\n<p>\u66f4\u65b0\u6578\u64da\u7684\u64cd\u4f5c\u4e5f\u975e\u5e38\u7c21\u55ae\u3002\u4ee5\u4e0b\u662f\u66f4\u65b0\u7528\u6236\u96fb\u5b50\u90f5\u4ef6\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>\n$sql = \"UPDATE Users SET email='john.doe@example.com' WHERE username='JohnDoe'\";\n\nif ($conn-&gt;query($sql) === TRUE) {\n    echo \"\u8a18\u9304\u66f4\u65b0\u6210\u529f\";\n} else {\n    echo \"\u932f\u8aa4: \" . $sql . \"<br>\" . $conn-&gt;error;\n}\n<\/code><\/pre>\n<h2 id=\"6-%e5%88%aa%e9%99%a4%e6%95%b8%e6%93%9a-xHudyXhkMQ\">6. \u522a\u9664\u6578\u64da<\/h2>\n<p>\u522a\u9664\u6578\u64da\u7684\u64cd\u4f5c\u540c\u6a23\u91cd\u8981\u3002\u4ee5\u4e0b\u662f\u522a\u9664\u7528\u6236\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>\n$sql = \"DELETE FROM Users WHERE username='JohnDoe'\";\n\nif ($conn-&gt;query($sql) === TRUE) {\n    echo \"\u8a18\u9304\u522a\u9664\u6210\u529f\";\n} else {\n    echo \"\u932f\u8aa4: \" . $sql . \"<br>\" . $conn-&gt;error;\n}\n<\/code><\/pre>\n<h2 id=\"7-%e9%97%9c%e9%96%89%e9%80%a3%e6%8e%a5-xHudyXhkMQ\">7. \u95dc\u9589\u9023\u63a5<\/h2>\n<p>\u5728\u5b8c\u6210\u6240\u6709\u64cd\u4f5c\u5f8c\uff0c\u8a18\u5f97\u95dc\u9589\u6578\u64da\u5eab\u9023\u63a5\uff1a<\/p>\n<pre><code>\n$conn-&gt;close();\n<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-xHudyXhkMQ\">\u7e3d\u7d50<\/h2>\n<p>\u672c\u6587\u4ecb\u7d39\u4e86PHP\u64cd\u4f5cMySQL\u6578\u64da\u5eab\u7684\u57fa\u672c\u8a9e\u53e5\uff0c\u5305\u62ec\u9023\u63a5\u6578\u64da\u5eab\u3001\u5275\u5efa\u8868\u683c\u3001\u63d2\u5165\u3001\u67e5\u8a62\u3001\u66f4\u65b0\u548c\u522a\u9664\u6578\u64da\u7b49\u64cd\u4f5c\u3002\u9019\u4e9b\u57fa\u672c\u64cd\u4f5c\u662f\u958b\u767c\u8005\u5728\u4f7f\u7528PHP\u548cMySQL\u9032\u884c\u7db2\u9801\u958b\u767c\u6642\u5fc5\u9808\u638c\u63e1\u7684\u6280\u80fd\u3002\u82e5\u60a8\u9700\u8981\u7a69\u5b9a\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u4f86\u904b\u884c\u60a8\u7684\u61c9\u7528\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u4e0d\u540c\u9700\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22PHP\u64cd\u4f5cMySQL\u6578\u64da\u5eab\u7684\u57fa\u790e\u61c9\u7528\uff0c\u6db5\u84cb\u5e38\u7528\u8a9e\u53e5\u548c\u5be6\u7528\u6280\u5de7\uff0c\u52a9\u4f60\u8f15\u9b06\u7ba1\u7406\u6578\u64da\u5eab\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-96478","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/96478","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=96478"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/96478\/revisions"}],"predecessor-version":[{"id":96479,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/96478\/revisions\/96479"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=96478"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=96478"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=96478"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}