{"id":96666,"date":"2024-10-20T11:21:16","date_gmt":"2024-10-20T03:21:16","guid":{"rendered":"https:\/\/server.hk\/cnblog\/96666\/"},"modified":"2024-10-20T11:21:17","modified_gmt":"2024-10-20T03:21:17","slug":"php%e4%b8%ad%e5%b8%b8%e7%94%a8%e5%88%b0%e7%9a%84%e4%b8%80%e4%ba%9bmysql%e8%aa%9e%e5%8f%a5","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/96666\/","title":{"rendered":"php\u4e2d\u5e38\u7528\u5230\u7684\u4e00\u4e9bMySQL\u8a9e\u53e5"},"content":{"rendered":"<h1 id=\"php%e4%b8%ad%e5%b8%b8%e7%94%a8%e5%88%b0%e7%9a%84%e4%b8%80%e4%ba%9bmysql%e8%aa%9e%e5%8f%a5-sNbRxPBuem\">PHP\u4e2d\u5e38\u7528\u5230\u7684\u4e00\u4e9bMySQL\u8a9e\u53e5<\/h1>\n<p>\u5728\u7db2\u9801\u958b\u767c\u4e2d\uff0cPHP\u548cMySQL\u7684\u7d50\u5408\u662f\u975e\u5e38\u5e38\u898b\u7684\u3002MySQL\u4f5c\u70ba\u4e00\u7a2e\u6d41\u884c\u7684\u95dc\u806f\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u63d0\u4f9b\u4e86\u591a\u7a2e\u8a9e\u53e5\u4f86\u9032\u884c\u6578\u64da\u7684\u64cd\u4f5c\u548c\u7ba1\u7406\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u4e00\u4e9b\u5728PHP\u4e2d\u5e38\u7528\u7684MySQL\u8a9e\u53e5\uff0c\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u597d\u5730\u7406\u89e3\u548c\u4f7f\u7528\u9019\u4e9b\u8a9e\u53e5\u3002<\/p>\n<h2 id=\"1-%e9%80%a3%e6%8e%a5%e5%88%b0mysql%e6%95%b8%e6%93%9a%e5%ba%ab-sNbRxPBuem\">1. \u9023\u63a5\u5230MySQL\u6578\u64da\u5eab<\/h2>\n<p>\u5728\u4f7f\u7528MySQL\u4e4b\u524d\uff0c\u9996\u5148\u9700\u8981\u5efa\u7acb\u8207\u6578\u64da\u5eab\u7684\u9023\u63a5\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528PHP\u9023\u63a5MySQL\u7684\u57fa\u672c\u8a9e\u6cd5\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: \" . $conn-&gt;connect_error);\n}\n<\/code><\/pre>\n<h2 id=\"2-%e6%9f%a5%e8%a9%a2%e6%95%b8%e6%93%9a-sNbRxPBuem\">2. \u67e5\u8a62\u6578\u64da<\/h2>\n<p>\u67e5\u8a62\u6578\u64da\u662fMySQL\u4e2d\u6700\u5e38\u7528\u7684\u64cd\u4f5c\u4e4b\u4e00\u3002\u4f7f\u7528SELECT\u8a9e\u53e5\u53ef\u4ee5\u5f9e\u6578\u64da\u8868\u4e2d\u6aa2\u7d22\u6578\u64da\u3002\u4ee5\u4e0b\u662f\u67e5\u8a62\u6578\u64da\u7684\u57fa\u672c\u8a9e\u6cd5\uff1a<\/p>\n<pre><code>\n$sql = \"SELECT * 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: \" . $row[\"name\"]. \"<br>\";\n    }\n} else {\n    echo \"0 \u7d50\u679c\";\n}\n<\/code><\/pre>\n<h2 id=\"3-%e6%8f%92%e5%85%a5%e6%95%b8%e6%93%9a-sNbRxPBuem\">3. \u63d2\u5165\u6578\u64da<\/h2>\n<p>\u4f7f\u7528INSERT\u8a9e\u53e5\u53ef\u4ee5\u5c07\u65b0\u6578\u64da\u63d2\u5165\u5230\u6578\u64da\u8868\u4e2d\u3002\u4ee5\u4e0b\u662f\u63d2\u5165\u6578\u64da\u7684\u57fa\u672c\u8a9e\u6cd5\uff1a<\/p>\n<pre><code>\n$sql = \"INSERT INTO users (name, email) VALUES ('John Doe', '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>\" . $conn-&gt;error;\n}\n<\/code><\/pre>\n<h2 id=\"4-%e6%9b%b4%e6%96%b0%e6%95%b8%e6%93%9a-sNbRxPBuem\">4. \u66f4\u65b0\u6578\u64da<\/h2>\n<p>\u4f7f\u7528UPDATE\u8a9e\u53e5\u53ef\u4ee5\u66f4\u65b0\u5df2\u5b58\u5728\u7684\u6578\u64da\u3002\u4ee5\u4e0b\u662f\u66f4\u65b0\u6578\u64da\u7684\u57fa\u672c\u8a9e\u6cd5\uff1a<\/p>\n<pre><code>\n$sql = \"UPDATE users SET email='john.doe@example.com' WHERE name='John Doe'\";\n\nif ($conn-&gt;query($sql) === TRUE) {\n    echo \"\u8a18\u9304\u66f4\u65b0\u6210\u529f\";\n} else {\n    echo \"\u932f\u8aa4: \" . $conn-&gt;error;\n}\n<\/code><\/pre>\n<h2 id=\"5-%e5%88%aa%e9%99%a4%e6%95%b8%e6%93%9a-sNbRxPBuem\">5. \u522a\u9664\u6578\u64da<\/h2>\n<p>\u4f7f\u7528DELETE\u8a9e\u53e5\u53ef\u4ee5\u522a\u9664\u6578\u64da\u8868\u4e2d\u7684\u6578\u64da\u3002\u4ee5\u4e0b\u662f\u522a\u9664\u6578\u64da\u7684\u57fa\u672c\u8a9e\u6cd5\uff1a<\/p>\n<pre><code>\n$sql = \"DELETE FROM users WHERE name='John Doe'\";\n\nif ($conn-&gt;query($sql) === TRUE) {\n    echo \"\u8a18\u9304\u522a\u9664\u6210\u529f\";\n} else {\n    echo \"\u932f\u8aa4: \" . $conn-&gt;error;\n}\n<\/code><\/pre>\n<h2 id=\"6-%e4%bd%bf%e7%94%a8%e9%a0%90%e8%99%95%e7%90%86%e8%aa%9e%e5%8f%a5-sNbRxPBuem\">6. \u4f7f\u7528\u9810\u8655\u7406\u8a9e\u53e5<\/h2>\n<p>\u70ba\u4e86\u63d0\u9ad8\u5b89\u5168\u6027\uff0c\u5efa\u8b70\u4f7f\u7528\u9810\u8655\u7406\u8a9e\u53e5\u4f86\u9632\u6b62SQL\u6ce8\u5165\u653b\u64ca\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528\u9810\u8655\u7406\u8a9e\u53e5\u7684\u57fa\u672c\u8a9e\u6cd5\uff1a<\/p>\n<pre><code>\n$stmt = $conn-&gt;prepare(\"INSERT INTO users (name, email) VALUES (?, ?)\");\n$stmt-&gt;bind_param(\"ss\", $name, $email);\n\n\/\/ \u8a2d\u7f6e\u53c3\u6578\u4e26\u57f7\u884c\n$name = \"Jane Doe\";\n$email = \"jane@example.com\";\n$stmt-&gt;execute();\n\necho \"\u65b0\u8a18\u9304\u63d2\u5165\u6210\u529f\";\n\n$stmt-&gt;close();\n<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-sNbRxPBuem\">\u7e3d\u7d50<\/h2>\n<p>\u672c\u6587\u4ecb\u7d39\u4e86\u5728PHP\u4e2d\u5e38\u7528\u7684MySQL\u8a9e\u53e5\uff0c\u5305\u62ec\u9023\u63a5\u6578\u64da\u5eab\u3001\u67e5\u8a62\u3001\u63d2\u5165\u3001\u66f4\u65b0\u548c\u522a\u9664\u6578\u64da\u7b49\u64cd\u4f5c\u3002\u9019\u4e9b\u57fa\u672c\u8a9e\u53e5\u662f\u958b\u767c\u8005\u5728\u4f7f\u7528PHP\u9032\u884c\u6578\u64da\u5eab\u64cd\u4f5c\u6642\u5fc5\u9808\u638c\u63e1\u7684\u6280\u80fd\u3002\u82e5\u60a8\u9700\u8981\u66f4\u9ad8\u6548\u7684\u6578\u64da\u8655\u7406\uff0c\u8003\u616e\u4f7f\u7528<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u6216<a href=\"https:\/\/server.hk\">\u96f2\u4f3a\u670d\u5668<\/a>\u4f86\u63d0\u5347\u60a8\u7684\u61c9\u7528\u6027\u80fd\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22PHP\u4e2d\u5e38\u7528\u7684MySQL\u8bed\u53e5\uff0c\u5305\u62ec\u67e5\u8be2\u3001\u63d2\u5165\u3001\u66f4\u65b0\u548c\u5220\u9664\uff0c\u63d0\u5347\u6570\u636e\u5e93\u64cd\u4f5c\u6548\u7387\u4e0e\u6027\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-96666","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/96666","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=96666"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/96666\/revisions"}],"predecessor-version":[{"id":96667,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/96666\/revisions\/96667"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=96666"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=96666"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=96666"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}