{"id":3795,"date":"2025-06-28T13:13:00","date_gmt":"2025-06-28T05:13:00","guid":{"rendered":"https:\/\/www.laixuexila.com\/?p=3795"},"modified":"2025-06-28T13:13:00","modified_gmt":"2025-06-28T05:13:00","slug":"%e5%a6%82%e4%bd%95%e5%9c%a8-php-%e4%b8%ad%e8%bf%9e%e6%8e%a5-mysql-%e6%95%b0%e6%8d%ae%e5%ba%93","status":"publish","type":"post","link":"https:\/\/www.laixuexila.com\/index.php\/2025\/06\/28\/%e5%a6%82%e4%bd%95%e5%9c%a8-php-%e4%b8%ad%e8%bf%9e%e6%8e%a5-mysql-%e6%95%b0%e6%8d%ae%e5%ba%93\/","title":{"rendered":"\u5982\u4f55\u5728 PHP \u4e2d\u8fde\u63a5 MySQL \u6570\u636e\u5e93"},"content":{"rendered":"\n<p>\u5728 PHP \u4e2d\u8fde\u63a5 MySQL \u6570\u636e\u5e93\u4e3b\u8981\u6709\u4e24\u79cd\u4e3b\u6d41\u65b9\u5f0f\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u4f7f\u7528 <strong>MySQLi<\/strong>\uff08\u9762\u5411\u8fc7\u7a0b\u6216\u9762\u5411\u5bf9\u8c61\uff09<\/li>\n\n\n\n<li>\u4f7f\u7528 <strong>PDO\uff08PHP Data Objects\uff09<\/strong>\uff08\u63a8\u8350\uff0c\u652f\u6301\u66f4\u591a\u6570\u636e\u5e93\uff09<\/li>\n<\/ol>\n\n\n\n<p>\u4ee5\u4e0b\u662f<strong>\u5b8c\u6574\u914d\u7f6e\u65b9\u6cd5 + \u793a\u4f8b\u4ee3\u7801 + \u5b89\u5168\u5efa\u8bae + \u6743\u5a01\u6587\u6863\u94fe\u63a5<\/strong>\uff0c\u9002\u7528\u4e8e\u672c\u5730\u5f00\u53d1\u6216\u670d\u52a1\u5668\u90e8\u7f72\uff08\u5982 Mac\u3001Linux\u3001Windows\u3001Docker \u73af\u5883\u7b49\uff09\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e00\u3001\u524d\u63d0\u51c6\u5907<\/h2>\n\n\n\n<p>\u4f60\u9700\u8981\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5df2\u5b89\u88c5 PHP\uff08\u5efa\u8bae 7.4+\uff09<\/li>\n\n\n\n<li>\u5df2\u5b89\u88c5\u5e76\u542f\u52a8 MySQL\uff08\u6216 MariaDB\uff09<\/li>\n\n\n\n<li>\u62e5\u6709\u6570\u636e\u5e93\u8fde\u63a5\u4fe1\u606f\uff1a<\/li>\n\n\n\n<li>\u4e3b\u673a\u540d\uff08\u5982 <code>localhost<\/code>\uff09<\/li>\n\n\n\n<li>\u7528\u6237\u540d\uff08\u5982 <code>root<\/code>\uff09<\/li>\n\n\n\n<li>\u5bc6\u7801\uff08\u5982 <code>root<\/code>\uff09<\/li>\n\n\n\n<li>\u6570\u636e\u5e93\u540d\uff08\u5982 <code>testdb<\/code>\uff09<\/li>\n<\/ul>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u5982\u679c\u4f60\u662f Docker \u7528\u6237\uff0c\u53ef\u901a\u8fc7 <code>docker-compose<\/code> \u542f\u52a8 <code>mysql<\/code> \u670d\u52a1\u5e76\u8fde\u63a5\u5230 <code>db<\/code> \u5bb9\u5668\u3002<\/p>\n<\/blockquote>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e8c\u3001\u65b9\u6cd5\u4e00\uff1a\u4f7f\u7528 <code>mysqli<\/code> \u8fde\u63a5\uff08\u9762\u5411\u8fc7\u7a0b\uff09<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u793a\u4f8b\u4ee3\u7801<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>&lt;?php\n$host = \"localhost\";\n$user = \"root\";\n$pass = \"root\";\n$dbname = \"testdb\";\n\n$conn = mysqli_connect($host, $user, $pass, $dbname);\n\nif (!$conn) {\n    die(\"\u8fde\u63a5\u5931\u8d25: \" . mysqli_connect_error());\n}\n\necho \"\u2705 \u6210\u529f\u8fde\u63a5\u5230 MySQL \u6570\u636e\u5e93\uff01\";\n\n\/\/ \u67e5\u8be2\u793a\u4f8b\n$result = mysqli_query($conn, \"SELECT * FROM users\");\nwhile ($row = mysqli_fetch_assoc($result)) {\n    echo $row&#91;'name'] . \"&lt;br&gt;\";\n}\n\nmysqli_close($conn);<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e09\u3001\u65b9\u6cd5\u4e8c\uff1a\u4f7f\u7528 PDO \u8fde\u63a5\uff08\u63a8\u8350\uff09<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u793a\u4f8b\u4ee3\u7801\uff08\u63a8\u8350\u7528\u4e8e\u73b0\u4ee3\u5f00\u53d1\uff09<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>&lt;?php\n$host = \"localhost\";\n$dbname = \"testdb\";\n$user = \"root\";\n$pass = \"root\";\n\ntry {\n    $dsn = \"mysql:host=$host;dbname=$dbname;charset=utf8mb4\";\n    $pdo = new PDO($dsn, $user, $pass, &#91;\n        PDO::ATTR_ERRMODE =&gt; PDO::ERRMODE_EXCEPTION,  \/\/ \u9519\u8bef\u629b\u5f02\u5e38\n        PDO::ATTR_DEFAULT_FETCH_MODE =&gt; PDO::FETCH_ASSOC  \/\/ \u9ed8\u8ba4\u5173\u8054\u6570\u7ec4\n    ]);\n\n    echo \"\u2705 \u6210\u529f\u8fde\u63a5\u5230 MySQL \u6570\u636e\u5e93\uff01\";\n\n    \/\/ \u67e5\u8be2\u793a\u4f8b\n    $stmt = $pdo-&gt;query(\"SELECT * FROM users\");\n    foreach ($stmt as $row) {\n        echo $row&#91;'name'] . \"&lt;br&gt;\";\n    }\n\n} catch (PDOException $e) {\n    echo \"\u274c \u6570\u636e\u5e93\u8fde\u63a5\u5931\u8d25: \" . $e-&gt;getMessage();\n}<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u56db\u3001MySQL \u7528\u6237\u548c\u6570\u636e\u5e93\u521b\u5efa\u547d\u4ee4\uff08\u547d\u4ee4\u884c\uff09<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>CREATE DATABASE testdb CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;\nCREATE USER 'user1'@'localhost' IDENTIFIED BY 'password123';\nGRANT ALL PRIVILEGES ON testdb.* TO 'user1'@'localhost';\nFLUSH PRIVILEGES;<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e94\u3001\u8fde\u63a5\u53c2\u6570\u8bf4\u660e<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u53c2\u6570<\/th><th>\u542b\u4e49<\/th><th>\u793a\u4f8b<\/th><\/tr><\/thead><tbody><tr><td><code>host<\/code><\/td><td>\u6570\u636e\u5e93\u4e3b\u673a\u540d<\/td><td><code>localhost<\/code> \/ <code>127.0.0.1<\/code> \/ <code>db<\/code>\uff08\u5bb9\u5668\uff09<\/td><\/tr><tr><td><code>user<\/code><\/td><td>\u767b\u5f55\u7528\u6237\u540d<\/td><td><code>root<\/code> \/ <code>app_user<\/code><\/td><\/tr><tr><td><code>password<\/code><\/td><td>\u767b\u5f55\u5bc6\u7801<\/td><td><code>123456<\/code><\/td><\/tr><tr><td><code>dbname<\/code><\/td><td>\u8fde\u63a5\u7684\u6570\u636e\u5e93\u540d<\/td><td><code>testdb<\/code><\/td><\/tr><tr><td><code>charset<\/code><\/td><td>\u5b57\u7b26\u96c6\uff08\u5efa\u8bae\u4f7f\u7528\uff09<\/td><td><code>utf8mb4<\/code><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u516d\u3001\u8fde\u63a5\u6d4b\u8bd5\u5efa\u8bae<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4f7f\u7528 <code>phpinfo()<\/code> \u67e5\u770b <code>mysqli<\/code> \u548c <code>PDO<\/code> \u662f\u5426\u542f\u7528<\/li>\n\n\n\n<li>\u4f7f\u7528 <code>telnet localhost 3306<\/code> \u6d4b\u8bd5\u7aef\u53e3\u662f\u5426\u5f00\u542f<\/li>\n\n\n\n<li>Docker \u7528\u6237\u9700\u6ce8\u610f\u5bb9\u5668\u540d\u79f0\u4e0e\u7f51\u7edc\u8fde\u63a5\uff08\u53ef\u7528 host \u4e3a <code>db<\/code>\uff09<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e03\u3001\u5b89\u5168\u5efa\u8bae<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u5efa\u8bae<\/th><th>\u539f\u56e0<\/th><\/tr><\/thead><tbody><tr><td>\u4f7f\u7528 PDO \u5e76\u5f00\u542f\u5f02\u5e38\u6a21\u5f0f<\/td><td>\u4fbf\u4e8e\u9519\u8bef\u6355\u83b7\u4e0e\u8c03\u8bd5<\/td><\/tr><tr><td>\u4f7f\u7528\u9884\u5904\u7406\u8bed\u53e5<\/td><td>\u9632\u6b62 SQL \u6ce8\u5165\u653b\u51fb<\/td><\/tr><tr><td>\u4e0d\u66b4\u9732 root \u7528\u6237\u4e8e\u751f\u4ea7\u73af\u5883<\/td><td>\u4f7f\u7528\u6700\u5c0f\u6743\u9650\u8d26\u53f7<\/td><\/tr><tr><td>\u4e0d\u5c06\u5bc6\u7801\u786c\u7f16\u7801<\/td><td>\u4f7f\u7528 <code>.env<\/code> \u73af\u5883\u6587\u4ef6\u6216\u914d\u7f6e\u6587\u4ef6<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u516b\u3001\u6743\u5a01\u53c2\u8003\u94fe\u63a5<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/www.php.net\/manual\/en\/book.mysqli.php\">\ud83d\udd17 PHP \u624b\u518c &#8211; mysqli<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.php.net\/manual\/en\/book.pdo.php\">\ud83d\udd17 PHP \u624b\u518c &#8211; PDO<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/dev.mysql.com\/doc\/\">\ud83d\udd17 MySQL \u5b98\u65b9\u6587\u6863<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/owasp.org\/www-community\/attacks\/SQL_Injection\">\ud83d\udd17 OWASP SQL \u6ce8\u5165\u9632\u62a4\u5efa\u8bae<\/a><\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e5d\u3001\u5feb\u901f\u95ee\u9898\u6392\u67e5<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u95ee\u9898<\/th><th>\u539f\u56e0\u4e0e\u89e3\u51b3<\/th><\/tr><\/thead><tbody><tr><td><code>Access denied for user<\/code><\/td><td>\u7528\u6237\u6216\u5bc6\u7801\u9519\u8bef \/ \u672a\u6388\u6743<\/td><\/tr><tr><td><code>Can't connect to MySQL server<\/code><\/td><td>MySQL \u672a\u8fd0\u884c \/ \u4e3b\u673a\u9519\u8bef<\/td><\/tr><tr><td><code>Class 'PDO' not found<\/code><\/td><td>\u6ca1\u5b89\u88c5 PDO \u6269\u5c55\uff1a<code>brew install php<\/code> \u6216 <code>docker-php-ext-install pdo<\/code><\/td><\/tr><tr><td>\u4e2d\u6587\u4e71\u7801<\/td><td>\u8bbe\u7f6e <code>charset=utf8mb4<\/code> \u4e14\u6570\u636e\u5e93\u8868\u4f7f\u7528\u76f8\u540c\u7f16\u7801<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p>\u66f4\u591a\u8be6\u7ec6\u5185\u5bb9\u8bf7\u5173\u6ce8\u5176\u4ed6\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728 PHP \u4e2d\u8fde\u63a5 MySQL \u6570\u636e\u5e93\u4e3b\u8981\u6709\u4e24\u79cd\u4e3b\u6d41\u65b9\u5f0f\uff1a \u4ee5\u4e0b\u662f\u5b8c\u6574\u914d\u7f6e\u65b9\u6cd5 + \u793a\u4f8b\u4ee3\u7801 + \u5b89\u5168\u5efa\u8bae + [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":3796,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[61],"tags":[],"class_list":["post-3795","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\/3795","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=3795"}],"version-history":[{"count":1,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/3795\/revisions"}],"predecessor-version":[{"id":3797,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/3795\/revisions\/3797"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/media\/3796"}],"wp:attachment":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/media?parent=3795"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/categories?post=3795"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/tags?post=3795"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}