{"id":3099,"date":"2025-03-22T00:07:39","date_gmt":"2025-03-21T16:07:39","guid":{"rendered":"https:\/\/www.laixuexila.com\/?p=3099"},"modified":"2025-03-22T00:07:39","modified_gmt":"2025-03-21T16:07:39","slug":"php-mysql-%e6%8f%92%e5%85%a5%e5%a4%9a%e6%9d%a1%e6%95%b0%e6%8d%ae%ef%bc%88%e6%89%b9%e9%87%8f%e6%8f%92%e5%85%a5%ef%bc%89","status":"publish","type":"post","link":"https:\/\/www.laixuexila.com\/index.php\/2025\/03\/22\/php-mysql-%e6%8f%92%e5%85%a5%e5%a4%9a%e6%9d%a1%e6%95%b0%e6%8d%ae%ef%bc%88%e6%89%b9%e9%87%8f%e6%8f%92%e5%85%a5%ef%bc%89\/","title":{"rendered":"PHP MySQL \u63d2\u5165\u591a\u6761\u6570\u636e\uff08\u6279\u91cf\u63d2\u5165\uff09"},"content":{"rendered":"\n

\u5728\u5b9e\u9645\u5f00\u53d1\u4e2d\uff0c\u6211\u4eec\u7ecf\u5e38\u9700\u8981\u5411\u6570\u636e\u5e93\u4e2d\u6279\u91cf\u63d2\u5165\u591a\u6761\u6570\u636e\u3002\u6279\u91cf\u63d2\u5165\u4e0d\u4ec5\u80fd\u63d0\u9ad8\u6027\u80fd\uff0c\u8fd8\u80fd\u51cf\u5c11\u6570\u636e\u5e93\u7684\u538b\u529b\u3002\u901a\u8fc7 PHP \u548c MySQL\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528 MySQLi<\/strong> \u6216 PDO<\/strong> \u5b8c\u6210\u6279\u91cf\u63d2\u5165\u64cd\u4f5c\u3002<\/p>\n\n\n\n

\u4e0b\u9762\u5c06\u5168\u9762\u89e3\u6790 \u5982\u4f55\u6279\u91cf\u63d2\u5165\u591a\u6761\u6570\u636e\uff0c\u5e38\u89c1\u9519\u8bef\u548c\u89e3\u51b3\u65b9\u6848<\/strong>\uff0c\u4ee5\u53ca \u6700\u4f73\u5b9e\u8df5<\/strong>\u3002<\/p>\n\n\n\n

\n\n\n\n

1. \u4f7f\u7528 MySQLi \u63d2\u5165\u591a\u6761\u6570\u636e<\/strong><\/h2>\n\n\n\n

1.1 MySQLi \u8fc7\u7a0b\u5316\u98ce\u683c\uff08\u63d2\u5165\u591a\u6761\u6570\u636e\uff09<\/strong><\/h3>\n\n\n\n
<?php\n$servername = \"localhost\";\n$username = \"root\";\n$password = \"\";\n$dbname = \"my_database\";\n\n\/\/ \u8fde\u63a5 MySQL\n$conn = mysqli_connect($servername, $username, $password, $dbname);\n\n\/\/ \u68c0\u6d4b\u8fde\u63a5\nif (!$conn) {\n    die(\"\u8fde\u63a5\u5931\u8d25: \" . mysqli_connect_error());\n}\n\n\/\/ \u6279\u91cf\u63d2\u5165 SQL\n$sql = \"INSERT INTO users (username, email, password) VALUES \n        ('user1', 'user1@example.com', 'password123'),\n        ('user2', 'user2@example.com', 'password456'),\n        ('user3', 'user3@example.com', 'password789')\";\n\nif (mysqli_query($conn, $sql)) {\n    echo \"\u591a\u6761\u8bb0\u5f55\u63d2\u5165\u6210\u529f\";\n} else {\n    echo \"\u9519\u8bef: \" . mysqli_error($conn);\n}\n\n\/\/ \u5173\u95ed\u8fde\u63a5\nmysqli_close($conn);\n?><\/code><\/pre>\n\n\n\n
\ud83d\udccc \u89e3\u6790<\/strong>\uff1a<\/p>\n\n\n\n
    \n
  • \u6211\u4eec\u5728 INSERT INTO<\/code><\/strong> \u8bed\u53e5\u4e2d\u4f7f\u7528 \u591a\u4e2a VALUES<\/code><\/strong> \u6765\u6279\u91cf\u63d2\u5165\u6570\u636e\u3002<\/li>\n\n\n\n
  • \u6bcf\u6761\u6570\u636e\u7528\u9017\u53f7\u5206\u9694\u3002<\/li>\n<\/ul>\n\n\n\n
    \n\n\n\n
    1.2 MySQLi \u9762\u5411\u5bf9\u8c61\u98ce\u683c\uff08\u63d2\u5165\u591a\u6761\u6570\u636e\uff09<\/strong><\/h3>\n\n\n\n
    <?php\n$servername = \"localhost\";\n$username = \"root\";\n$password = \"\";\n$dbname = \"my_database\";\n\n\/\/ \u521b\u5efa\u8fde\u63a5\n$conn = new mysqli($servername, $username, $password, $dbname);\n\n\/\/ \u68c0\u6d4b\u8fde\u63a5\nif ($conn->connect_error) {\n    die(\"\u8fde\u63a5\u5931\u8d25: \" . $conn->connect_error);\n}\n\n\/\/ \u6279\u91cf\u63d2\u5165 SQL\n$sql = \"INSERT INTO users (username, email, password) VALUES \n        ('user1', 'user1@example.com', 'password123'),\n        ('user2', 'user2@example.com', 'password456'),\n        ('user3', 'user3@example.com', 'password789')\";\n\nif ($conn->query($sql) === TRUE) {\n    echo \"\u591a\u6761\u8bb0\u5f55\u63d2\u5165\u6210\u529f\";\n} else {\n    echo \"\u9519\u8bef: \" . $conn->error;\n}\n\n\/\/ \u5173\u95ed\u8fde\u63a5\n$conn->close();\n?><\/code><\/pre>\n\n\n\n
    \ud83d\udccc \u9762\u5411\u5bf9\u8c61\u98ce\u683c<\/strong>\uff1a<\/p>\n\n\n\n
      \n
    • \u4f7f\u7528 $conn->query($sql)<\/code> \u6267\u884c SQL \u67e5\u8be2\u3002<\/li>\n<\/ul>\n\n\n\n
      \n\n\n\n
      2. \u4f7f\u7528 PDO \u63d2\u5165\u591a\u6761\u6570\u636e\uff08\u63a8\u8350\uff09<\/strong><\/h2>\n\n\n\n
      2.1 PDO \u76f4\u63a5\u6267\u884c\u6279\u91cf\u63d2\u5165<\/strong><\/h3>\n\n\n\n
      <?php\n$servername = \"localhost\";\n$username = \"root\";\n$password = \"\";\n$dbname = \"my_database\";\n\ntry {\n    \/\/ \u8fde\u63a5 MySQL\n    $pdo = new PDO(\"mysql:host=$servername;dbname=$dbname\", $username, $password);\n    $pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);\n\n    \/\/ \u6279\u91cf\u63d2\u5165 SQL\n    $sql = \"INSERT INTO users (username, email, password) VALUES \n            (:username1, :email1, :password1),\n            (:username2, :email2, :password2),\n            (:username3, :email3, :password3)\";\n\n    $stmt = $pdo->prepare($sql);\n\n    \/\/ \u7ed1\u5b9a\u53c2\u6570\u5e76\u6267\u884c\n    $stmt->bindParam(':username1', $username1);\n    $stmt->bindParam(':email1', $email1);\n    $stmt->bindParam(':password1', $password1);\n\n    $stmt->bindParam(':username2', $username2);\n    $stmt->bindParam(':email2', $email2);\n    $stmt->bindParam(':password2', $password2);\n\n    $stmt->bindParam(':username3', $username3);\n    $stmt->bindParam(':email3', $email3);\n    $stmt->bindParam(':password3', $password3);\n\n    \/\/ \u8bbe\u7f6e\u6570\u636e\u5e76\u6267\u884c\n    $username1 = 'user1'; $email1 = 'user1@example.com'; $password1 = 'password123';\n    $username2 = 'user2'; $email2 = 'user2@example.com'; $password2 = 'password456';\n    $username3 = 'user3'; $email3 = 'user3@example.com'; $password3 = 'password789';\n    $stmt->execute();\n\n    echo \"\u591a\u6761\u8bb0\u5f55\u63d2\u5165\u6210\u529f\";\n} catch (PDOException $e) {\n    echo \"\u9519\u8bef: \" . $e->getMessage();\n}\n\n\/\/ \u5173\u95ed\u8fde\u63a5\n$pdo = null;\n?><\/code><\/pre>\n\n\n\n
      \ud83d\udccc \u89e3\u6790<\/strong>\uff1a<\/p>\n\n\n\n
        \n
      • \u6211\u4eec\u5728 INSERT INTO<\/code> \u4e2d\u4f7f\u7528 \u547d\u540d\u53c2\u6570<\/strong>\uff08:username1<\/code>, :email1<\/code>\uff09\u3002<\/li>\n\n\n\n
      • \u901a\u8fc7 \u7ed1\u5b9a\u53c2\u6570<\/strong>\uff0c\u9632\u6b62 SQL \u6ce8\u5165\u3002<\/li>\n\n\n\n
      • \u6279\u91cf\u63d2\u5165\u65f6\uff0c\u6570\u636e\u4ee5\u4e0d\u540c\u7684\u53d8\u91cf\u4f20\u9012\u7ed9 SQL \u8bed\u53e5\u3002<\/li>\n<\/ul>\n\n\n\n
        \n\n\n\n
        2.2 PDO \u4f7f\u7528\u6279\u91cf\u6570\u636e\u5faa\u73af\u63d2\u5165\uff08\u66f4\u9ad8\u6548\uff09<\/strong><\/h3>\n\n\n\n
        <?php\n$servername = \"localhost\";\n$username = \"root\";\n$password = \"\";\n$dbname = \"my_database\";\n\ntry {\n    \/\/ \u8fde\u63a5 MySQL\n    $pdo = new PDO(\"mysql:host=$servername;dbname=$dbname\", $username, $password);\n    $pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);\n\n    \/\/ \u9884\u5904\u7406 SQL\n    $sql = \"INSERT INTO users (username, email, password) VALUES (:username, :email, :password)\";\n    $stmt = $pdo->prepare($sql);\n\n    \/\/ \u6279\u91cf\u6570\u636e\n    $data = [\n        ['user1', 'user1@example.com', 'password123'],\n        ['user2', 'user2@example.com', 'password456'],\n        ['user3', 'user3@example.com', 'password789']\n    ];\n\n    \/\/ \u4f7f\u7528\u5faa\u73af\u63d2\u5165\u591a\u6761\u6570\u636e\n    foreach ($data as $row) {\n        $stmt->bindParam(':username', $row[0]);\n        $stmt->bindParam(':email', $row[1]);\n        $stmt->bindParam(':password', $row[2]);\n        $stmt->execute();\n    }\n\n    echo \"\u6279\u91cf\u63d2\u5165\u6570\u636e\u6210\u529f\";\n} catch (PDOException $e) {\n    echo \"\u9519\u8bef: \" . $e->getMessage();\n}\n\n\/\/ \u5173\u95ed\u8fde\u63a5\n$pdo = null;\n?><\/code><\/pre>\n\n\n\n
        \ud83d\udccc \u4f18\u5316<\/strong>\uff1a<\/p>\n\n\n\n
          \n
        • \u901a\u8fc7\u5faa\u73af\u5904\u7406\u6279\u91cf\u6570\u636e\uff0c\u53ef\u4ee5\u52a8\u6001\u63d2\u5165\u4efb\u610f\u6570\u91cf\u7684\u8bb0\u5f55\u3002<\/li>\n\n\n\n
        • \u4f7f\u7528 bindParam()<\/code> \u9632\u6b62 SQL \u6ce8\u5165\uff0c\u5e76\u786e\u4fdd\u6267\u884c\u6548\u7387\u3002<\/li>\n<\/ul>\n\n\n\n
          \n\n\n\n
          3. \u4f7f\u7528\u4e8b\u52a1\uff08Transaction\uff09\u63d2\u5165\u591a\u6761\u6570\u636e<\/strong><\/h2>\n\n\n\n
          \u5728\u6279\u91cf\u63d2\u5165\u5927\u91cf\u6570\u636e\u65f6\uff0c\u4f7f\u7528\u4e8b\u52a1\u80fd\u591f\u786e\u4fdd\u6570\u636e\u4e00\u81f4\u6027\u3002\u4e8b\u52a1\u53ef\u4ee5\u786e\u4fdd\u6279\u91cf\u64cd\u4f5c\u8981\u4e48\u5168\u90e8\u6210\u529f\uff0c\u8981\u4e48\u5168\u90e8\u5931\u8d25\u3002<\/p>\n\n\n\n
          3.1 PDO \u4f7f\u7528\u4e8b\u52a1\u6279\u91cf\u63d2\u5165<\/strong><\/h3>\n\n\n\n
          <?php\n$servername = \"localhost\";\n$username = \"root\";\n$password = \"\";\n$dbname = \"my_database\";\n\ntry {\n    \/\/ \u8fde\u63a5 MySQL\n    $pdo = new PDO(\"mysql:host=$servername;dbname=$dbname\", $username, $password);\n    $pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);\n\n    \/\/ \u5f00\u59cb\u4e8b\u52a1\n    $pdo->beginTransaction();\n\n    \/\/ \u9884\u5904\u7406 SQL\n    $sql = \"INSERT INTO users (username, email, password) VALUES (:username, :email, :password)\";\n    $stmt = $pdo->prepare($sql);\n\n    \/\/ \u6279\u91cf\u6570\u636e\n    $data = [\n        ['user1', 'user1@example.com', 'password123'],\n        ['user2', 'user2@example.com', 'password456'],\n        ['user3', 'user3@example.com', 'password789']\n    ];\n\n    \/\/ \u5faa\u73af\u63d2\u5165\u6570\u636e\n    foreach ($data as $row) {\n        $stmt->bindParam(':username', $row[0]);\n        $stmt->bindParam(':email', $row[1]);\n        $stmt->bindParam(':password', $row[2]);\n        $stmt->execute();\n    }\n\n    \/\/ \u63d0\u4ea4\u4e8b\u52a1\n    $pdo->commit();\n    echo \"\u4e8b\u52a1\u6210\u529f\uff1a\u6279\u91cf\u63d2\u5165\u6570\u636e\";\n} catch (PDOException $e) {\n    \/\/ \u56de\u6eda\u4e8b\u52a1\n    $pdo->rollBack();\n    echo \"\u9519\u8bef: \" . $e->getMessage();\n}\n\n\/\/ \u5173\u95ed\u8fde\u63a5\n$pdo = null;\n?><\/code><\/pre>\n\n\n\n
          \ud83d\udccc \u89e3\u6790<\/strong>\uff1a<\/p>\n\n\n\n
            \n
          • \u4f7f\u7528 $pdo->beginTransaction()<\/code> \u542f\u52a8\u4e8b\u52a1\u3002<\/li>\n\n\n\n
          • commit()<\/code> \u63d0\u4ea4\u4e8b\u52a1\uff0crollBack()<\/code> \u56de\u6eda\u4e8b\u52a1\uff0c\u4fdd\u8bc1\u6570\u636e\u4e00\u81f4\u6027\u3002<\/li>\n<\/ul>\n\n\n\n
            \n\n\n\n
            4. \u5e38\u89c1\u9519\u8bef\u53ca\u89e3\u51b3\u65b9\u6848<\/strong><\/h2>\n\n\n\n
            4.1 “Duplicate entry for key ‘PRIMARY'”<\/strong><\/h3>\n\n\n\n
            \u539f\u56e0<\/strong>\uff1a\u63d2\u5165\u6570\u636e\u65f6\u4e3b\u952e\u91cd\u590d\u3002<\/p>\n\n\n\n
            \u89e3\u51b3\u65b9\u6848<\/strong>\uff1a<\/p>\n\n\n\n
              \n
            • \u786e\u4fdd\u4e3b\u952e\u662f AUTO_INCREMENT<\/code><\/strong>\u3002<\/li>\n\n\n\n
            • \u5982\u679c\u6570\u636e\u5305\u542b\u91cd\u590d\u4e3b\u952e\uff0c\u4f7f\u7528 INSERT IGNORE<\/code> \u6216 ON DUPLICATE KEY UPDATE<\/code>\u3002<\/li>\n<\/ul>\n\n\n\n
              4.2 “Field ’email’ doesn’t have a default value”<\/strong><\/h3>\n\n\n\n
              \u539f\u56e0<\/strong>\uff1a\u7f3a\u5c11\u5fc5\u586b\u5b57\u6bb5\u7684\u503c\u3002<\/p>\n\n\n\n
              \u89e3\u51b3\u65b9\u6848<\/strong>\uff1a<\/p>\n\n\n\n
                \n
              • \u786e\u4fdd\u63d2\u5165\u6240\u6709 **`<\/li>\n<\/ul>\n\n\n\n
                NOT NULL`** \u5b57\u6bb5\u7684\u503c\uff0c\u6216\u4fee\u6539\u6570\u636e\u5e93\u8868\u7ed3\u6784\u4f7f\u5176\u5141\u8bb8\u7a7a\u503c\u3002<\/p>\n\n\n\n
                \n\n\n\n
                \u603b\u7ed3<\/strong><\/h2>\n\n\n\n
                \u65b9\u5f0f<\/th>\u4ee3\u7801<\/th>\u662f\u5426\u63a8\u8350<\/th><\/tr><\/thead>
                MySQLi \u8fc7\u7a0b\u5316<\/td>mysqli_query($conn, $sql);<\/code><\/td>\u274c<\/td><\/tr>
                MySQLi \u9762\u5411\u5bf9\u8c61<\/td>$conn->query($sql);<\/code><\/td>\u274c<\/td><\/tr>
                PDO \u76f4\u63a5\u6267\u884c<\/td>$pdo->exec($sql);<\/code><\/td>\u274c<\/td><\/tr>
                PDO \u5faa\u73af\u63d2\u5165<\/td>$stmt->execute($row);<\/code><\/td>\u2705<\/td><\/tr>
                PDO \u4e8b\u52a1<\/td>$pdo->beginTransaction();<\/code><\/td>\u2705<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
                \u66f4\u591a\u8be6\u7ec6\u5185\u5bb9\u8bf7\u5173\u6ce8\u5176\u4ed6\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
                \u5728\u5b9e\u9645\u5f00\u53d1\u4e2d\uff0c\u6211\u4eec\u7ecf\u5e38\u9700\u8981\u5411\u6570\u636e\u5e93\u4e2d\u6279\u91cf\u63d2\u5165\u591a\u6761\u6570\u636e\u3002\u6279\u91cf\u63d2\u5165\u4e0d\u4ec5\u80fd\u63d0\u9ad8\u6027\u80fd\uff0c\u8fd8\u80fd\u51cf\u5c11\u6570\u636e\u5e93\u7684\u538b\u529b\u3002\u901a\u8fc7 PH […]<\/p>\n","protected":false},"author":1,"featured_media":3100,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[80],"tags":[],"class_list":["post-3099","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-php"],"_links":{"self":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/3099","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/comments?post=3099"}],"version-history":[{"count":1,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/3099\/revisions"}],"predecessor-version":[{"id":3101,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/3099\/revisions\/3101"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/media\/3100"}],"wp:attachment":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/media?parent=3099"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/categories?post=3099"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/tags?post=3099"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}