{"id":202476,"date":"2025-05-13T10:16:11","date_gmt":"2025-05-13T02:16:11","guid":{"rendered":"https:\/\/server.hk\/cnblog\/202476\/"},"modified":"2025-05-13T10:16:11","modified_gmt":"2025-05-13T02:16:11","slug":"php-%e5%87%bd%e6%95%b0%e6%80%8e%e4%b9%88%e4%b8%8e%e6%95%b0%e6%8d%ae%e5%ba%93%e4%ba%a4%e4%ba%92","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/202476\/","title":{"rendered":"PHP \u51fd\u6570\u600e\u4e48\u4e0e\u6570\u636e\u5e93\u4ea4\u4e92"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>PHP \u51fd\u6570\u600e\u4e48\u4e0e\u6570\u636e\u5e93\u4ea4\u4e92<\/h1>\n<p>\u54c8\u55bd\uff01\u5927\u5bb6\u597d\uff0c\u5f88\u9ad8\u5174\u53c8\u89c1\u9762\u4e86\uff0c\u6211\u662f\u7684\u4e00\u540d\u4f5c\u8005\uff0c\u4eca\u5929\u7531\u6211\u7ed9\u5927\u5bb6\u5e26\u6765\u4e00\u7bc7<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aPHP \u51fd\u6570\u600e\u4e48\u4e0e\u6570\u636e\u5e93\u4ea4\u4e92\u300b<\/span>\uff0c\u672c\u6587\u4e3b\u8981\u4f1a\u8bb2\u5230<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5e0c\u671b\u5927\u5bb6\u4e00\u8d77\u5b66\u4e60\u8fdb\u6b65\uff0c\u4e5f\u6b22\u8fce\u5927\u5bb6\u5173\u6ce8\u3001\u70b9\u8d5e\u3001\u6536\u85cf\u3001\u8f6c\u53d1! \u4e0b\u9762\u5c31\u4e00\u8d77\u6765\u770b\u770b\u5427\uff01<\/p>\n<p>PHP \u63d0\u4f9b\u4e86\u591a\u79cd\u51fd\u6570\u7528\u4e8e\u6570\u636e\u5e93\u4ea4\u4e92\uff0c\u5305\u62ec\uff1a\u8fde\u63a5\u5230\u6570\u636e\u5e93\uff1amysqli_connect()\u6267\u884c\u67e5\u8be2\uff1amysqli_query()\u68c0\u7d22\u6570\u636e\uff1amysqli_fetch_array()\u63d2\u5165\u6570\u636e\uff1amysqli_query()\u66f4\u65b0\u6570\u636e\uff1amysqli_query()<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241025\/1729837309671b38fdd560e.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>PHP \u51fd\u6570\u7528\u4e8e\u6570\u636e\u5e93\u4ea4\u4e92<\/strong><\/p>\n<p>PHP \u63d0\u4f9b\u4e86\u591a\u79cd\u51fd\u6570\u6765\u4e0e\u6570\u636e\u5e93\u8fdb\u884c\u4ea4\u4e92\u3002\u901a\u8fc7\u4f7f\u7528\u8fd9\u4e9b\u51fd\u6570\uff0c\u60a8\u53ef\u4ee5\u8fde\u63a5\u5230\u6570\u636e\u5e93\u3001\u6267\u884c\u67e5\u8be2\u3001\u63d2\u5165\u548c\u66f4\u65b0\u6570\u636e\u4ee5\u53ca\u4ece\u6570\u636e\u5e93\u4e2d\u68c0\u7d22\u6570\u636e\u3002<\/p>\n<p><strong>\u8fde\u63a5\u5230\u6570\u636e\u5e93<\/strong><\/p>\n<p>\u8981\u8fde\u63a5\u5230\u6570\u636e\u5e93\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>mysqli_connect()<\/code> \u51fd\u6570\u3002\u6b64\u51fd\u6570\u9700\u8981\u56db\u4e2a\u53c2\u6570\uff1a<\/p>\n<ul>\n<li>\u670d\u52a1\u5668\u5730\u5740<\/li>\n<li>\u7528\u6237\u540d<\/li>\n<li>\u5bc6\u7801<\/li>\n<li>\u6570\u636e\u5e93\u540d\u79f0<\/li>\n<\/ul>\n<p>\u793a\u4f8b\uff1a<\/p>\n<pre>$servername = \"localhost\";\n$username = \"username\";\n$password = \"password\";\n$dbname = \"database\";\n\n\/\/ \u521b\u5efa\u8fde\u63a5\n$conn = mysqli_connect($servername, $username, $password, $dbname);\n\n\/\/ \u68c0\u67e5\u8fde\u63a5\u662f\u5426\u6210\u529f\nif (!$conn) {\n    die(\"\u8fde\u63a5\u5931\u8d25: \" . mysqli_connect_error());\n}<\/pre>\n<p><strong>\u6267\u884c\u67e5\u8be2<\/strong><\/p>\n<p>\u4f7f\u7528 <code>mysqli_query()<\/code> \u51fd\u6570\u6267\u884c\u67e5\u8be2\u3002\u6b64\u51fd\u6570\u9700\u8981\u4e24\u4e2a\u53c2\u6570\uff1a<\/p>\n<ul>\n<li>\u5df2\u7ecf\u8fde\u63a5\u7684\u6570\u636e\u5e93\u8fde\u63a5<\/li>\n<li>\u67e5\u8be2\u5b57\u7b26\u4e32<\/li>\n<\/ul>\n<p>\u793a\u4f8b\uff1a<\/p>\n<pre>$sql = \"SELECT * FROM users\";\n$result = mysqli_query($conn, $sql);\n\nif (!$result) {\n    die(\"\u67e5\u8be2\u5931\u8d25: \" . mysqli_error($conn));\n}<\/pre>\n<p><strong>\u4ece\u7ed3\u679c\u96c6\u4e2d\u68c0\u7d22\u6570\u636e<\/strong><\/p>\n<p>\u4f7f\u7528 <code>mysqli_fetch_array()<\/code> \u51fd\u6570\u4ece\u7ed3\u679c\u96c6\u4e2d\u68c0\u7d22\u6570\u636e\u3002\u6b64\u51fd\u6570\u8fd4\u56de\u5f53\u524d\u884c\u7684\u5173\u8054\u6570\u7ec4\u3002<\/p>\n<p>\u793a\u4f8b\uff1a<\/p>\n<pre>while ($row = mysqli_fetch_array($result)) {\n    echo $row['username'] . \" \" . $row['email'] . \"&lt;br&gt;\";\n}<\/pre>\n<p><strong>\u63d2\u5165\u6570\u636e<\/strong><\/p>\n<p>\u4f7f\u7528 <code>mysqli_query()<\/code> \u51fd\u6570\u63d2\u5165\u6570\u636e\u3002\u6b64\u51fd\u6570\u9700\u8981\u4e24\u4e2a\u53c2\u6570\uff1a<\/p>\n<ul>\n<li>\u5df2\u7ecf\u8fde\u63a5\u7684\u6570\u636e\u5e93\u8fde\u63a5<\/li>\n<li>\u63d2\u5165\u67e5\u8be2\u5b57\u7b26\u4e32<\/li>\n<\/ul>\n<p>\u793a\u4f8b\uff1a<\/p>\n<pre>$sql = \"INSERT INTO users (username, email) VALUES ('john', 'john@example.com')\";\n\nif (mysqli_query($conn, $sql)) {\n    echo \"\u65b0\u8bb0\u5f55\u5df2\u63d2\u5165\";\n} else {\n    echo \"\u63d2\u5165\u5931\u8d25: \" . mysqli_error($conn);\n}<\/pre>\n<p><strong>\u66f4\u65b0\u6570\u636e<\/strong><\/p>\n<p>\u4f7f\u7528 <code>mysqli_query()<\/code> \u51fd\u6570\u66f4\u65b0\u6570\u636e\u3002\u6b64\u51fd\u6570\u9700\u8981\u4e24\u4e2a\u53c2\u6570\uff1a<\/p>\n<ul>\n<li>\u5df2\u7ecf\u8fde\u63a5\u7684\u6570\u636e\u5e93\u8fde\u63a5<\/li>\n<li>\u66f4\u65b0\u67e5\u8be2\u5b57\u7b26\u4e32<\/li>\n<\/ul>\n<p>\u793a\u4f8b\uff1a<\/p>\n<pre>$sql = \"UPDATE users SET email = 'jane@example.com' WHERE username = 'jane'\";\n\nif (mysqli_query($conn, $sql)) {\n    echo \"\u8bb0\u5f55\u5df2\u66f4\u65b0\";\n} else {\n    echo \"\u66f4\u65b0\u5931\u8d25: \" . mysqli_error($conn);\n}<\/pre>\n<p><strong>\u5b9e\u6218\u6848\u4f8b<\/strong><\/p>\n<p>\u4ee5\u4e0b\u662f\u4e00\u4e2a\u5b8c\u6574\u7684 PHP \u811a\u672c\uff0c\u6f14\u793a\u4e86\u5982\u4f55\u4f7f\u7528 PHP \u51fd\u6570\u4e0e MySQL \u6570\u636e\u5e93\u8fdb\u884c\u4ea4\u4e92\uff1a<\/p>\n<pre>&lt;?php\n\n$servername = \"localhost\";\n$username = \"username\";\n$password = \"password\";\n$dbname = \"database\";\n\n\/\/ \u521b\u5efa\u8fde\u63a5\n$conn = mysqli_connect($servername, $username, $password, $dbname);\n\n\/\/ \u68c0\u67e5\u8fde\u63a5\u662f\u5426\u6210\u529f\nif (!$conn) {\n    die(\"\u8fde\u63a5\u5931\u8d25: \" . mysqli_connect_error());\n}\n\n\/\/ \u6267\u884c\u67e5\u8be2\n$sql = \"SELECT * FROM users\";\n$result = mysqli_query($conn, $sql);\n\nif (!$result) {\n    die(\"\u67e5\u8be2\u5931\u8d25: \" . mysqli_error($conn));\n}\n\n\/\/ \u4ece\u7ed3\u679c\u96c6\u4e2d\u68c0\u7d22\u6570\u636e\necho \"&lt;table border='1'&gt;\";\necho \"&lt;tr&gt;&lt;th&gt;ID&lt;\/th&gt;&lt;th&gt;\u7528\u6237\u540d&lt;\/th&gt;&lt;th&gt;\u90ae\u7bb1&lt;\/th&gt;&lt;\/tr&gt;\";\nwhile ($row = mysqli_fetch_array($result)) {\n    echo \"&lt;tr&gt;&lt;td&gt;\" . $row['id'] . \"&lt;\/td&gt;&lt;td&gt;\" . $row['username'] . \"&lt;\/td&gt;&lt;td&gt;\" . $row['email'] . \"&lt;\/td&gt;&lt;\/tr&gt;\";\n}\necho \"&lt;\/table&gt;\";\n\n\/\/ \u5173\u95ed\u8fde\u63a5\nmysqli_close($conn);\n\n?&gt;<\/pre>\n<p>\u6b64\u811a\u672c\u5c06\u8fde\u63a5\u5230 MySQL \u6570\u636e\u5e93\uff0c\u6267\u884c\u67e5\u8be2\u4ee5\u68c0\u7d22\u6240\u6709\u7528\u6237\uff0c\u5e76\u5c06\u7ed3\u679c\u663e\u793a\u5728 HTML \u8868\u4e2d\u3002<\/p>\n<p>\u4eca\u5929\u5e26\u5927\u5bb6\u4e86\u89e3\u4e86\u7684\u76f8\u5173\u77e5\u8bc6\uff0c\u5e0c\u671b\u5bf9\u4f60\u6709\u6240\u5e2e\u52a9\uff1b\u5173\u4e8e\u6587\u7ae0\u7684\u6280\u672f\u77e5\u8bc6\u6211\u4eec\u4f1a\u4e00\u70b9\u70b9\u6df1\u5165\u4ecb\u7ecd\uff0c\u6b22\u8fce\u5927\u5bb6\u5173\u6ce8\u516c\u4f17\u53f7\uff0c\u4e00\u8d77\u5b66\u4e60\u7f16\u7a0b~<\/p>\n","protected":false},"excerpt":{"rendered":"<p>PHP \u51fd\u6570\u600e\u4e48\u4e0e\u6570\u636e\u5e93\u4ea4\u4e92 \u54c8&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4925],"tags":[],"class_list":["post-202476","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202476","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"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=202476"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/202476\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=202476"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=202476"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=202476"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}