{"id":96588,"date":"2024-10-20T10:42:17","date_gmt":"2024-10-20T02:42:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/96588\/"},"modified":"2024-10-20T10:42:18","modified_gmt":"2024-10-20T02:42:18","slug":"php%e5%af%a6%e4%be%8b%e5%8c%96%e6%95%b8%e6%93%9a%e5%ba%ab%ef%bc%9a%e7%b0%a1%e5%96%ae%e6%98%93%e6%87%82%e7%9a%84%e6%95%99%e7%a8%8b-php-%e5%af%a6%e4%be%8b%e5%8c%96%e6%95%b8%e6%93%9a%e5%ba%ab","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/96588\/","title":{"rendered":"php\u5be6\u4f8b\u5316\u6578\u64da\u5eab\uff1a\u7c21\u55ae\u6613\u61c2\u7684\u6559\u7a0b (php \u5be6\u4f8b\u5316\u6578\u64da\u5eab)"},"content":{"rendered":"

PHP\u5be6\u4f8b\u5316\u6578\u64da\u5eab\uff1a\u7c21\u55ae\u6613\u61c2\u7684\u6559\u7a0b<\/h1>\n

\u5728\u7576\u4eca\u7684\u7db2\u7d61\u958b\u767c\u4e2d\uff0cPHP\u662f\u4e00\u7a2e\u5ee3\u6cdb\u4f7f\u7528\u7684\u4f3a\u670d\u5668\u7aef\u8173\u672c\u8a9e\u8a00\u3002\u5b83\u7684\u9748\u6d3b\u6027\u548c\u5f37\u5927\u529f\u80fd\u4f7f\u5f97\u958b\u767c\u8005\u80fd\u5920\u8f15\u9b06\u5730\u8207\u6578\u64da\u5eab\u9032\u884c\u4ea4\u4e92\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u5728PHP\u4e2d\u5be6\u4f8b\u5316\u6578\u64da\u5eab\uff0c\u4e26\u63d0\u4f9b\u7c21\u55ae\u6613\u61c2\u7684\u793a\u4f8b\uff0c\u5e6b\u52a9\u8b80\u8005\u5feb\u901f\u4e0a\u624b\u3002<\/p>\n

\u4ec0\u9ebc\u662f\u6578\u64da\u5eab\u5be6\u4f8b\u5316\uff1f<\/h2>\n

\u6578\u64da\u5eab\u5be6\u4f8b\u5316\u662f\u6307\u5728\u61c9\u7528\u7a0b\u5e8f\u4e2d\u5275\u5efa\u4e00\u500b\u6578\u64da\u5eab\u9023\u63a5\u7684\u904e\u7a0b\u3002\u9019\u500b\u904e\u7a0b\u901a\u5e38\u6d89\u53ca\u5230\u4f7f\u7528\u7279\u5b9a\u7684\u6578\u64da\u5eab\u9a45\u52d5\u7a0b\u5e8f\u4f86\u9023\u63a5\u5230\u6578\u64da\u5eab\uff0c\u4e26\u57f7\u884c\u67e5\u8a62\u4ee5\u7372\u53d6\u6216\u4fee\u6539\u6578\u64da\u3002PHP\u652f\u6301\u591a\u7a2e\u6578\u64da\u5eab\u7cfb\u7d71\uff0c\u5305\u62ecMySQL\u3001PostgreSQL\u548cSQLite\u7b49\u3002<\/p>\n

\u4f7f\u7528PDO\u9023\u63a5MySQL\u6578\u64da\u5eab<\/h2>\n

PHP Data Objects\uff08PDO\uff09\u662f\u4e00\u500b\u8f15\u91cf\u7d1a\u7684\u6578\u64da\u5eab\u62bd\u8c61\u5c64\uff0c\u63d0\u4f9b\u4e86\u4e00\u500b\u4e00\u81f4\u7684\u63a5\u53e3\u4f86\u8a2a\u554f\u4e0d\u540c\u7684\u6578\u64da\u5eab\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528PDO\u9023\u63a5MySQL\u6578\u64da\u5eab\u7684\u57fa\u672c\u6b65\u9a5f\uff1a<\/p>\n

\u6b65\u9a5f1\uff1a\u5b89\u88ddPDO\u64f4\u5c55<\/h3>\n

\u5728\u5927\u591a\u6578\u60c5\u6cc1\u4e0b\uff0cPDO\u64f4\u5c55\u5df2\u7d93\u9810\u88dd\u5728PHP\u4e2d\u3002\u5982\u679c\u60a8\u4f7f\u7528\u7684\u662f\u81ea\u5b9a\u7fa9\u7684PHP\u74b0\u5883\uff0c\u8acb\u78ba\u4fdd\u5df2\u555f\u7528PDO\u64f4\u5c55\u3002<\/p>\n

\u6b65\u9a5f2\uff1a\u5275\u5efa\u6578\u64da\u5eab\u9023\u63a5<\/h3>\n
\n PDO::ERRMODE_EXCEPTION,\n    PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC,\n    PDO::ATTR_EMULATE_PREPARES   => false,\n];\n\ntry {\n    $pdo = new PDO($dsn, $user, $pass, $options);\n    echo \"\u6578\u64da\u5eab\u9023\u63a5\u6210\u529f\uff01\";\n} catch (PDOException $e) {\n    throw new PDOException($e->getMessage(), (int)$e->getCode());\n}\n?>\n<\/code><\/pre>\n
\u5728\u4e0a\u9762\u7684\u4ee3\u78bc\u4e2d\uff0c\u6211\u5011\u9996\u5148\u5b9a\u7fa9\u4e86\u6578\u64da\u5eab\u7684\u4e3b\u6a5f\u3001\u540d\u7a31\u3001\u7528\u6236\u540d\u548c\u5bc6\u78bc\u3002\u7136\u5f8c\uff0c\u6211\u5011\u4f7f\u7528\u9019\u4e9b\u4fe1\u606f\u5275\u5efa\u4e86\u4e00\u500bDSN\uff08\u6578\u64da\u6e90\u540d\u7a31\uff09\uff0c\u4e26\u4f7f\u7528PDO\u985e\u4f86\u5efa\u7acb\u9023\u63a5\u3002<\/p>\n
\u6b65\u9a5f3\uff1a\u57f7\u884c\u67e5\u8a62<\/h3>\n
\u4e00\u65e6\u6210\u529f\u9023\u63a5\u5230\u6578\u64da\u5eab\uff0c\u60a8\u5c31\u53ef\u4ee5\u57f7\u884cSQL\u67e5\u8a62\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u67e5\u8a62\u793a\u4f8b\uff1a<\/p>\n
\nquery($sql);\n\nwhile ($row = $stmt->fetch()) {\n    echo $row['column_name'] . \"n\";\n}\n?>\n<\/code><\/pre>\n
\u5728\u9019\u6bb5\u4ee3\u78bc\u4e2d\uff0c\u6211\u5011\u57f7\u884c\u4e86\u4e00\u500bSELECT\u67e5\u8a62\uff0c\u4e26\u4f7f\u7528fetch()\u65b9\u6cd5\u9010\u884c\u7372\u53d6\u7d50\u679c\u3002<\/p>\n
\u4f7f\u7528MySQLi\u9023\u63a5MySQL\u6578\u64da\u5eab<\/h2>\n
\u9664\u4e86PDO\uff0cPHP\u9084\u63d0\u4f9b\u4e86MySQLi\u64f4\u5c55\u4f86\u9023\u63a5MySQL\u6578\u64da\u5eab\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528MySQLi\u7684\u793a\u4f8b\uff1a<\/p>\n
\nconnect_error) {\n    die(\"\u9023\u63a5\u5931\u6557: \" . $mysqli->connect_error);\n}\necho \"\u6578\u64da\u5eab\u9023\u63a5\u6210\u529f\uff01\";\n\n$sql = \"SELECT * FROM your_table_name\";\n$result = $mysqli->query($sql);\n\nif ($result->num_rows > 0) {\n    while($row = $result->fetch_assoc()) {\n        echo $row['column_name'] . \"n\";\n    }\n} else {\n    echo \"0 \u7d50\u679c\";\n}\n$mysqli->close();\n?>\n<\/code><\/pre>\n
\u5728\u9019\u6bb5\u4ee3\u78bc\u4e2d\uff0c\u6211\u5011\u4f7f\u7528MySQLi\u985e\u4f86\u5efa\u7acb\u9023\u63a5\uff0c\u4e26\u57f7\u884c\u67e5\u8a62\u4ee5\u7372\u53d6\u6578\u64da\u3002<\/p>\n
\u7e3d\u7d50<\/h2>\n
\u672c\u6587\u4ecb\u7d39\u4e86\u5982\u4f55\u5728PHP\u4e2d\u5be6\u4f8b\u5316\u6578\u64da\u5eab\uff0c\u4e26\u63d0\u4f9b\u4e86\u4f7f\u7528PDO\u548cMySQLi\u7684\u793a\u4f8b\u3002\u7121\u8ad6\u60a8\u9078\u64c7\u54ea\u7a2e\u65b9\u6cd5\uff0c\u7406\u89e3\u6578\u64da\u5eab\u7684\u57fa\u672c\u64cd\u4f5c\u90fd\u662f\u958b\u767c\u52d5\u614b\u7db2\u7ad9\u7684\u95dc\u9375\u3002\u82e5\u60a8\u9700\u8981\u7a69\u5b9a\u7684\u4f3a\u670d\u5668\u4f86\u904b\u884c\u60a8\u7684PHP\u61c9\u7528\u7a0b\u5e8f\uff0c\u8003\u616e\u4f7f\u7528\u9999\u6e2fVPS<\/a>\u89e3\u6c7a\u65b9\u6848\uff0c\u4ee5\u78ba\u4fdd\u60a8\u7684\u7db2\u7ad9\u9ad8\u6548\u904b\u884c\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5b78\u7fd2\u5982\u4f55\u5728PHP\u4e2d\u5be6\u4f8b\u5316\u6578\u64da\u5eab\uff0c\u901a\u904e\u7c21\u55ae\u6613\u61c2\u7684\u6559\u7a0b\uff0c\u5feb\u901f\u638c\u63e1\u6578\u64da\u5eab\u9023\u63a5\u8207\u64cd\u4f5c\u6280\u5de7\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-96588","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/96588","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=96588"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/96588\/revisions"}],"predecessor-version":[{"id":96589,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/96588\/revisions\/96589"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=96588"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=96588"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=96588"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}