{"id":30853,"date":"2024-03-07T16:18:04","date_gmt":"2022-10-31T14:49:55","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bd%bf%e7%94%a8php%e5%88%9b%e5%bb%ba%e5%8d%9a%e5%ae%a2\/"},"modified":"2025-08-12T21:06:09","modified_gmt":"2025-08-12T13:06:09","slug":"%e4%bd%bf%e7%94%a8php%e5%88%9b%e5%bb%ba%e5%8d%9a%e5%ae%a2","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bd%bf%e7%94%a8php%e5%88%9b%e5%bb%ba%e5%8d%9a%e5%ae%a2\/","title":{"rendered":"\u4f7f\u7528PHP\u521b\u5efa\u535a\u5ba2"},"content":{"rendered":"<h1>\u9996\u5148\u3002<\/p>\n<p>\u4e3a\u4e86\u5b66\u4e60PHP\uff0c\u6211\u8fd9\u6b21\u5c1d\u8bd5\u521b\u5efa\u4e86\u4e00\u4e2a\u535a\u5ba2\u3002\u7531\u4e8e\u6211\u53ea\u4e13\u6ce8\u4e8e\u8ba9\u5e94\u7528\u7a0b\u5e8f\u8fd0\u884c\u8d77\u6765\uff0c\u6240\u4ee5\u8fd9\u6b21\u4ec5\u8fdb\u884c\u4e86\u6700\u57fa\u672c\u7684\u5b9e\u73b0\uff0c\u6ca1\u6709\u6d89\u53ca\u4ee5\u4e0b\u5185\u5bb9\u7684\u5b9e\u73b0\u3002<\/p>\n<ul class=\"post-ul\">\nCSRF\u5bfe\u7b56<br \/>\n\u4f8b\u5916\u51e6\u7406\n<\/ul>\n<p>\u9019\u7bc7\u6587\u7ae0\u65e8\u5728\u56de\u9867\u548c\u8a18\u9304\u6211\u5728\u4f7f\u7528php\u5be6\u73fe\u6642\u7684\u7d93\u9a57\u548c\u65e5\u5e38\u5099\u5fd8\u9304\u3002\u5982\u679c\u6709\u4efb\u4f55\u4e0d\u6b63\u78ba\u4e4b\u8655\uff0c\u8acb\u53cb\u597d\u5730\u6307\u6b63\u4e26\u6559\u5c0e\u6211\u3002<\/p>\n<h1>\u4e0eCRUD\u5904\u7406\u76f8\u5173\u7684\u6bcf\u4e2a\u65b9\u6cd5<\/p>\n<pre class=\"post-pre\"><code>\r\n<span class=\"cp\">&lt;?php<\/span>\r\n\r\n<span class=\"kn\">namespace<\/span> <span class=\"nn\">Myapp<\/span><span class=\"p\">;<\/span>\r\n\r\n<span class=\"kd\">class<\/span> <span class=\"nc\">Blog<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"k\">private<\/span> <span class=\"nv\">$_db<\/span><span class=\"p\">;<\/span>\r\n\r\n  <span class=\"k\">public<\/span> <span class=\"k\">function<\/span> <span class=\"n\">__construct<\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"nv\">$this<\/span><span class=\"o\">-&gt;<\/span><span class=\"n\">_db<\/span> <span class=\"o\">=<\/span> <span class=\"k\">new<\/span> <span class=\"err\">\\<\/span><span class=\"nf\">PDO<\/span><span class=\"p\">(<\/span><span class=\"no\">PDO_DSN<\/span><span class=\"p\">,<\/span> <span class=\"no\">DB_USERNAME<\/span><span class=\"p\">,<\/span> <span class=\"no\">DB_PASSWORD<\/span><span class=\"p\">);<\/span>\r\n  <span class=\"p\">}<\/span>\r\n\r\n  <span class=\"c1\">\/\/\u5168\u4ef6\u53d6\u5f97\u3002<\/span>\r\n  <span class=\"k\">public<\/span> <span class=\"k\">function<\/span> <span class=\"n\">getAll<\/span><span class=\"p\">(){<\/span>\r\n    <span class=\"nv\">$stmt<\/span> <span class=\"o\">=<\/span> <span class=\"nv\">$this<\/span><span class=\"o\">-&gt;<\/span><span class=\"n\">_db<\/span><span class=\"o\">-&gt;<\/span><span class=\"nf\">query<\/span><span class=\"p\">(<\/span><span class=\"s2\">\"select * from blogs order by id desc\"<\/span><span class=\"p\">);<\/span>\r\n    <span class=\"k\">return<\/span> <span class=\"nv\">$stmt<\/span><span class=\"o\">-&gt;<\/span><span class=\"nf\">fetchAll<\/span><span class=\"p\">(<\/span><span class=\"err\">\\<\/span><span class=\"no\">PDO<\/span><span class=\"o\">::<\/span><span class=\"no\">FETCH_OBJ<\/span><span class=\"p\">);<\/span>\r\n  <span class=\"p\">}<\/span>\r\n\r\n  <span class=\"c1\">\/\/URL\u304b\u3089ID\u3092\u53d6\u5f97\u3057PDO\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3067\u62bd\u51fa\u3002<\/span>\r\n  <span class=\"k\">public<\/span> <span class=\"k\">function<\/span> <span class=\"n\">show<\/span><span class=\"p\">(){<\/span>\r\n    <span class=\"nv\">$url<\/span> <span class=\"o\">=<\/span> <span class=\"nv\">$_SERVER<\/span><span class=\"p\">[<\/span><span class=\"s2\">\"REQUEST_URI\"<\/span><span class=\"p\">];<\/span>\r\n    <span class=\"nv\">$id<\/span> <span class=\"o\">=<\/span> <span class=\"nb\">substr<\/span><span class=\"p\">(<\/span><span class=\"nv\">$url<\/span><span class=\"p\">,<\/span> <span class=\"o\">-<\/span><span class=\"mi\">2<\/span><span class=\"p\">);<\/span>\r\n    <span class=\"nv\">$sql<\/span> <span class=\"o\">=<\/span> <span class=\"nb\">sprintf<\/span><span class=\"p\">(<\/span><span class=\"s2\">\"select * from blogs where id = %s\"<\/span><span class=\"p\">,<\/span> <span class=\"nv\">$id<\/span> <span class=\"p\">);<\/span>\r\n    <span class=\"nv\">$stmt<\/span> <span class=\"o\">=<\/span> <span class=\"nv\">$this<\/span><span class=\"o\">-&gt;<\/span><span class=\"n\">_db<\/span><span class=\"o\">-&gt;<\/span><span class=\"nf\">query<\/span><span class=\"p\">(<\/span><span class=\"nv\">$sql<\/span><span class=\"p\">);<\/span>\r\n    <span class=\"k\">return<\/span> <span class=\"nv\">$stmt<\/span><span class=\"o\">-&gt;<\/span><span class=\"nf\">fetch<\/span><span class=\"p\">(<\/span><span class=\"err\">\\<\/span><span class=\"no\">PDO<\/span><span class=\"o\">::<\/span><span class=\"no\">FETCH_OBJ<\/span><span class=\"p\">);<\/span>\r\n  <span class=\"p\">}<\/span>\r\n\r\n  <span class=\"c1\">\/\/\u633f\u5165<\/span>\r\n  <span class=\"k\">public<\/span> <span class=\"k\">function<\/span> <span class=\"n\">create<\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">if<\/span> <span class=\"p\">(<\/span><span class=\"nv\">$_SERVER<\/span><span class=\"p\">[<\/span><span class=\"s1\">'REQUEST_METHOD'<\/span><span class=\"p\">]<\/span> <span class=\"o\">===<\/span> <span class=\"s1\">'POST'<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n      <span class=\"nv\">$title<\/span> <span class=\"o\">=<\/span> <span class=\"nv\">$_POST<\/span><span class=\"p\">[<\/span><span class=\"s2\">\"title\"<\/span><span class=\"p\">];<\/span>\r\n      <span class=\"nv\">$content<\/span> <span class=\"o\">=<\/span> <span class=\"nv\">$_POST<\/span><span class=\"p\">[<\/span><span class=\"s2\">\"content\"<\/span><span class=\"p\">];<\/span>\r\n      <span class=\"nv\">$sql<\/span> <span class=\"o\">=<\/span> <span class=\"s2\">\"insert into blogs (title, content) values (:title, :content)\"<\/span><span class=\"p\">;<\/span>\r\n      <span class=\"nv\">$stmt<\/span> <span class=\"o\">=<\/span> <span class=\"nv\">$this<\/span><span class=\"o\">-&gt;<\/span><span class=\"n\">_db<\/span><span class=\"o\">-&gt;<\/span><span class=\"nf\">prepare<\/span><span class=\"p\">(<\/span><span class=\"nv\">$sql<\/span><span class=\"p\">);<\/span>\r\n      <span class=\"nv\">$stmt<\/span><span class=\"o\">-&gt;<\/span><span class=\"nf\">execute<\/span><span class=\"p\">([<\/span><span class=\"s1\">':title'<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nv\">$title<\/span><span class=\"p\">,<\/span> <span class=\"s1\">':content'<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nv\">$content<\/span><span class=\"p\">]);<\/span>\r\n      <span class=\"nb\">header<\/span><span class=\"p\">(<\/span><span class=\"s1\">'Location:http:\/\/'<\/span> <span class=\"mf\">.<\/span> <span class=\"no\">SITE_URL<\/span><span class=\"p\">);<\/span>\r\n    <span class=\"p\">}<\/span>\r\n  <span class=\"p\">}<\/span>\r\n  <span class=\"c1\">\/\/\u524a\u9664<\/span>\r\n  <span class=\"k\">public<\/span> <span class=\"k\">function<\/span> <span class=\"n\">delete<\/span><span class=\"p\">(){<\/span>\r\n    <span class=\"nv\">$url<\/span> <span class=\"o\">=<\/span> <span class=\"nv\">$_SERVER<\/span><span class=\"p\">[<\/span><span class=\"s2\">\"REQUEST_URI\"<\/span><span class=\"p\">];<\/span>\r\n    <span class=\"nv\">$id<\/span> <span class=\"o\">=<\/span> <span class=\"nb\">substr<\/span><span class=\"p\">(<\/span><span class=\"nv\">$url<\/span><span class=\"p\">,<\/span> <span class=\"o\">-<\/span><span class=\"mi\">2<\/span><span class=\"p\">);<\/span>\r\n    <span class=\"nv\">$sql<\/span> <span class=\"o\">=<\/span> <span class=\"nb\">sprintf<\/span><span class=\"p\">(<\/span><span class=\"s2\">\"delete from blogs where id = %d\"<\/span><span class=\"p\">,<\/span> <span class=\"nv\">$id<\/span> <span class=\"p\">);<\/span>\r\n    <span class=\"nv\">$stmt<\/span> <span class=\"o\">=<\/span> <span class=\"nv\">$this<\/span><span class=\"o\">-&gt;<\/span><span class=\"n\">_db<\/span><span class=\"o\">-&gt;<\/span><span class=\"nf\">query<\/span><span class=\"p\">(<\/span><span class=\"nv\">$sql<\/span><span class=\"p\">);<\/span>\r\n  <span class=\"p\">}<\/span>\r\n  <span class=\"c1\">\/\/\u66f4\u65b0<\/span>\r\n  <span class=\"k\">public<\/span> <span class=\"k\">function<\/span> <span class=\"n\">update<\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">if<\/span> <span class=\"p\">(<\/span><span class=\"nv\">$_SERVER<\/span><span class=\"p\">[<\/span><span class=\"s1\">'REQUEST_METHOD'<\/span><span class=\"p\">]<\/span> <span class=\"o\">===<\/span> <span class=\"s1\">'POST'<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n      <span class=\"nv\">$url<\/span> <span class=\"o\">=<\/span> <span class=\"nv\">$_SERVER<\/span><span class=\"p\">[<\/span><span class=\"s2\">\"REQUEST_URI\"<\/span><span class=\"p\">];<\/span>\r\n      <span class=\"nv\">$id<\/span> <span class=\"o\">=<\/span> <span class=\"nb\">substr<\/span><span class=\"p\">(<\/span><span class=\"nv\">$url<\/span><span class=\"p\">,<\/span> <span class=\"o\">-<\/span><span class=\"mi\">2<\/span><span class=\"p\">);<\/span>\r\n      <span class=\"nv\">$title<\/span> <span class=\"o\">=<\/span> <span class=\"nv\">$_POST<\/span><span class=\"p\">[<\/span><span class=\"s2\">\"title\"<\/span><span class=\"p\">];<\/span>\r\n      <span class=\"nv\">$content<\/span> <span class=\"o\">=<\/span> <span class=\"nv\">$_POST<\/span><span class=\"p\">[<\/span><span class=\"s2\">\"content\"<\/span><span class=\"p\">];<\/span>\r\n\r\n      <span class=\"nv\">$sql<\/span> <span class=\"o\">=<\/span> <span class=\"s2\">\"update blogs set title = ?, content = ? where id = ?\"<\/span><span class=\"p\">;<\/span>\r\n      <span class=\"nv\">$stmt<\/span> <span class=\"o\">=<\/span> <span class=\"nv\">$this<\/span><span class=\"o\">-&gt;<\/span><span class=\"n\">_db<\/span><span class=\"o\">-&gt;<\/span><span class=\"nf\">prepare<\/span><span class=\"p\">(<\/span><span class=\"nv\">$sql<\/span><span class=\"p\">);<\/span>\r\n      <span class=\"nv\">$stmt<\/span><span class=\"o\">-&gt;<\/span><span class=\"nf\">bindValue<\/span><span class=\"p\">(<\/span><span class=\"mi\">1<\/span><span class=\"p\">,<\/span> <span class=\"nv\">$title<\/span><span class=\"p\">);<\/span>\r\n      <span class=\"nv\">$stmt<\/span><span class=\"o\">-&gt;<\/span><span class=\"nf\">bindValue<\/span><span class=\"p\">(<\/span><span class=\"mi\">2<\/span><span class=\"p\">,<\/span> <span class=\"nv\">$content<\/span><span class=\"p\">);<\/span>\r\n      <span class=\"nv\">$stmt<\/span><span class=\"o\">-&gt;<\/span><span class=\"nf\">bindValue<\/span><span class=\"p\">(<\/span><span class=\"mi\">3<\/span><span class=\"p\">,<\/span> <span class=\"nv\">$id<\/span><span class=\"p\">);<\/span>\r\n      <span class=\"nv\">$stmt<\/span><span class=\"o\">-&gt;<\/span><span class=\"nf\">execute<\/span><span class=\"p\">();<\/span>\r\n    <span class=\"p\">}<\/span>\r\n  <span class=\"p\">}<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"cp\">?&gt;<\/span>\r\n\r\n<\/code><\/pre>\n<h1>\u5173\u4e8e\u6784\u5efa<\/p>\n<pre class=\"post-pre\"><code>  <span class=\"k\">public<\/span> <span class=\"k\">function<\/span> <span class=\"n\">__construct<\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"nv\">$this<\/span><span class=\"o\">-&gt;<\/span><span class=\"n\">_db<\/span> <span class=\"o\">=<\/span> <span class=\"k\">new<\/span> <span class=\"err\">\\<\/span><span class=\"nf\">PDO<\/span><span class=\"p\">(<\/span><span class=\"no\">PDO_DSN<\/span><span class=\"p\">,<\/span> <span class=\"no\">DB_USERNAME<\/span><span class=\"p\">,<\/span> <span class=\"no\">DB_PASSWORD<\/span><span class=\"p\">);<\/span>\r\n  <span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u8bf7\u53c2\u8003\u4e0a\u8ff0\u4ee3\u7801\uff0c\u5728\u8fde\u63a5\u6570\u636e\u5e93\u65f6\u5f15\u7528\u4e86\u6570\u636e\u5e93\u7684\u4fe1\u606f\u3002\u8bf7\u67e5\u770bconfig.php\u6587\u4ef6\u4ee5\u4e86\u89e3\u8be6\u7ec6\u7684\u4ee3\u7801\u5185\u5bb9\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nb\">ini_set<\/span><span class=\"p\">(<\/span><span class=\"s2\">\"display_errors\"<\/span><span class=\"p\">,<\/span> <span class=\"mi\">1<\/span><span class=\"p\">);<\/span>\r\n<span class=\"nb\">define<\/span><span class=\"p\">(<\/span><span class=\"s1\">'PDO_DSN'<\/span><span class=\"p\">,<\/span> <span class=\"s1\">'mysql:dbname=blog_app;host=localhost;charset=utf8;unix_socket=\/tmp\/mysql.sock'<\/span><span class=\"p\">);<\/span>\r\n<span class=\"nb\">define<\/span><span class=\"p\">(<\/span><span class=\"s2\">\"SITE_URL\"<\/span><span class=\"p\">,<\/span> <span class=\"nv\">$_SERVER<\/span><span class=\"p\">[<\/span><span class=\"s2\">\"HTTP_HOST\"<\/span><span class=\"p\">]);<\/span>\r\n<span class=\"nb\">define<\/span><span class=\"p\">(<\/span><span class=\"s1\">'DB_USERNAME'<\/span><span class=\"p\">,<\/span> <span class=\"s1\">'admin'<\/span><span class=\"p\">);<\/span>\r\n<span class=\"nb\">define<\/span><span class=\"p\">(<\/span><span class=\"s1\">'DB_PASSWORD'<\/span><span class=\"p\">,<\/span> <span class=\"s1\">'admin1234'<\/span><span class=\"p\">);<\/span>\r\n\r\n<\/code><\/pre>\n<p>\u8fd9\u91cc\u7684PDO\u7c7b\u4e2d\u5bf9\u4e8eMySQL\u6570\u636e\u5e93\u7684\u8bbf\u95ee\u51fa\u73b0\u4e86\u95ee\u9898\uff0c\u663e\u793a\u4e86SQLSTATE[HY000] [2002] No such file or directory\u7684\u9519\u8bef\u3002\u610f\u601d\u662f\u76ee\u5f55\u4e0d\u5b58\u5728\u3002\u7ecf\u8fc7\u8c03\u67e5\uff0c\u53ef\u80fd\u662f\u7531\u4e8eMySQL\u6307\u5b9a\u7684\u76ee\u5f55\u8def\u5f84\u4e0d\u6b63\u786e\u7b49\u539f\u56e0\u3002\u56e0\u6b64\uff0c\u76f4\u63a5\u901a\u8fc7\u6dfb\u52a0unix_socket=\/tmp\/mysql.sock&#8217;\u5e76\u6307\u5b9a\u8def\u5f84\u6765\u89e3\u51b3\u4e86\u8fd9\u4e2a\u9519\u8bef\u3002\u53e6\u5916\uff0c\u901a\u8fc7\u5c06host:localhost\u4fee\u6539\u4e3ahost:127.0.0.1\u5e76\u6307\u5b9aIP\u5730\u5740\u4e5f\u89e3\u51b3\u4e86\u9519\u8bef\uff0c\u4f46\u662f\u4e0d\u6e05\u695a\u89e3\u51b3\u7684\u539f\u56e0\uff0c\u8bf7\u6709\u77e5\u8bc6\u7684\u4eba\u63d0\u4f9b\u89e3\u91ca\u3002<\/p>\n<h1>\u5173\u4e8e\u67e5\u8be2\u4e8b\u9879<\/p>\n<pre class=\"post-pre\"><code>  <span class=\"k\">public<\/span> <span class=\"k\">function<\/span> <span class=\"n\">getAll<\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"nv\">$stmt<\/span> <span class=\"o\">=<\/span> <span class=\"nv\">$this<\/span><span class=\"o\">-&gt;<\/span><span class=\"n\">_db<\/span><span class=\"o\">-&gt;<\/span><span class=\"nf\">query<\/span><span class=\"p\">(<\/span><span class=\"s2\">\"select * from todos order by id desc\"<\/span><span class=\"p\">);<\/span>\r\n    <span class=\"c1\">\/\/\u7d50\u679c\u3092\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u5f62\u5f0f\u3067\u8fd4\u3059<\/span>\r\n    <span class=\"k\">return<\/span> <span class=\"nv\">$stmt<\/span><span class=\"o\">-&gt;<\/span><span class=\"nf\">fetchAll<\/span><span class=\"p\">(<\/span><span class=\"err\">\\<\/span><span class=\"no\">PDO<\/span><span class=\"o\">::<\/span><span class=\"no\">FETCH_OBJ<\/span><span class=\"p\">);<\/span>\r\n<\/code><\/pre>\n<p>\u9996\u5148\u5173\u4e8equery\u7684\u95ee\u9898\uff0cgetAll\u65b9\u6cd5\u4e2d\u7684SQL\u8bed\u53e5\u4ec5\u6267\u884cquery\u64cd\u4f5c\u3002\u4f3c\u4e4e\u53ef\u4ee5\u7406\u89e3\u4e3a\u82e5\u8981\u6267\u884c\u56fa\u5b9a\u7684SQL\u8bed\u53e5\uff0c\u5219\u4f7f\u7528query\u3002\u56e0\u6b64\uff0c\u5f53\u4f7f\u7528\u4e0d\u9700\u8981\u5206\u914d\u53d8\u91cf\u7684\u7b80\u5355\u7684SQL\u8bed\u53e5\u65f6\uff0cquery\u662f\u4e00\u4e2a\u4e0d\u9519\u7684\u9009\u62e9\u3002<\/p>\n<h1>\u5173\u4e8e&#8221;\u51c6\u5907&#8221;\u548c&#8221;\u6267\u884c&#8221;<\/p>\n<pre class=\"post-pre\"><code>      <span class=\"c1\">\/\/create\u51e6\u7406\u3067\u306e\u5909\u6570\u306e\u6271\u3044<\/span>\r\n      <span class=\"nv\">$sql<\/span> <span class=\"o\">=<\/span> <span class=\"s2\">\"insert into blogs (title, content) values (:title, :content)\"<\/span><span class=\"p\">;<\/span>\r\n      <span class=\"nv\">$stmt<\/span> <span class=\"o\">=<\/span> <span class=\"nv\">$this<\/span><span class=\"o\">-&gt;<\/span><span class=\"n\">_db<\/span><span class=\"o\">-&gt;<\/span><span class=\"nf\">prepare<\/span><span class=\"p\">(<\/span><span class=\"nv\">$sql<\/span><span class=\"p\">);<\/span>\r\n      <span class=\"nv\">$stmt<\/span><span class=\"o\">-&gt;<\/span><span class=\"nf\">execute<\/span><span class=\"p\">([<\/span><span class=\"s1\">':title'<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nv\">$title<\/span><span class=\"p\">,<\/span> <span class=\"s1\">':content'<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nv\">$content<\/span><span class=\"p\">]);<\/span>\r\n      <span class=\"nb\">header<\/span><span class=\"p\">(<\/span><span class=\"s1\">'Location:http:\/\/'<\/span> <span class=\"mf\">.<\/span> <span class=\"no\">SITE_URL<\/span><span class=\"p\">);<\/span>\r\n\r\n      <span class=\"c1\">\/\/update\u51e6\u7406\u3067\u306e\u5909\u6570\u306e\u6271\u3044<\/span>\r\n      <span class=\"nv\">$sql<\/span> <span class=\"o\">=<\/span> <span class=\"s2\">\"update blogs set title = ?, content = ? where id = ?\"<\/span><span class=\"p\">;<\/span>\r\n      <span class=\"nv\">$stmt<\/span> <span class=\"o\">=<\/span> <span class=\"nv\">$this<\/span><span class=\"o\">-&gt;<\/span><span class=\"n\">_db<\/span><span class=\"o\">-&gt;<\/span><span class=\"nf\">prepare<\/span><span class=\"p\">(<\/span><span class=\"nv\">$sql<\/span><span class=\"p\">);<\/span>\r\n      <span class=\"nv\">$stmt<\/span><span class=\"o\">-&gt;<\/span><span class=\"nf\">bindValue<\/span><span class=\"p\">(<\/span><span class=\"mi\">1<\/span><span class=\"p\">,<\/span> <span class=\"nv\">$title<\/span><span class=\"p\">);<\/span>\r\n      <span class=\"nv\">$stmt<\/span><span class=\"o\">-&gt;<\/span><span class=\"nf\">bindValue<\/span><span class=\"p\">(<\/span><span class=\"mi\">2<\/span><span class=\"p\">,<\/span> <span class=\"nv\">$content<\/span><span class=\"p\">);<\/span>\r\n      <span class=\"nv\">$stmt<\/span><span class=\"o\">-&gt;<\/span><span class=\"nf\">bindValue<\/span><span class=\"p\">(<\/span><span class=\"mi\">3<\/span><span class=\"p\">,<\/span> <span class=\"nv\">$id<\/span><span class=\"p\">);<\/span>\r\n      <span class=\"nv\">$stmt<\/span><span class=\"o\">-&gt;<\/span><span class=\"nf\">execute<\/span><span class=\"p\">();<\/span>\r\n<\/code><\/pre>\n<p>\u6b64\u5916\uff0cprepare\u548cexecute\u5728\u4f7f\u7528\u4e0a\u901a\u5e38\u662f\u4f5c\u4e3a\u4e00\u7ec4\u4f7f\u7528\u7684\u3002\u901a\u8fc7\u4ee5\u8fd9\u79cd\u65b9\u5f0f\u5904\u7406\uff0c\u53ef\u4ee5\u5728SQL\u67e5\u8be2\u4e2d\u7684\u53c2\u6570\u6307\u5b9a\u90e8\u5206\u5199\u5165\u201c:\u540d\u79f0\u201d\u6216\u95ee\u53f7\u201c?\u201d\u7684\u53c2\u6570\u6807\u8bb0\u6765\u5904\u7406\u3002<br \/>\n\u4e3e\u4e2a\u4f8b\u5b50\uff0c\u5f53\u901a\u8fc7create\u65b9\u6cd5\u5904\u7406\u65f6\uff0c\u4f1a\u5c06\u53d8\u91cf\u5982\u201c:\u540d\u79f0\u201d\u4e00\u6837\u7684\u53d8\u91cf\u5206\u914d\u7ed9SQL\u8bed\u53e5\u3002<br \/>\n\u5728prepare\u65b9\u6cd5\u4e2d\u8bbe\u7f6eSQL\u5e76\u5728\u6267\u884c\u65f6\u901a\u8fc7\u6570\u7ec4\u4f20\u9012\u503c\u3002<\/p>\n<p>\u518d\u770b\u4e00\u4e0b\u66f4\u65b0\u5904\u7406\uff0c\u8fd9\u91cc\u4f7f\u7528\u4e86\u95ee\u53f7&#8221;?&#8221;\u4f5c\u4e3a\u5360\u4f4d\u7b26\u3002<br \/>\n\u7c7b\u4f3c\u5730\uff0c\u5728\u51c6\u5907\u9636\u6bb5\u8bbe\u7f6e\u4e86SQL\u8bed\u53e5\u540e\uff0c\u518d\u901a\u8fc7\u7ed1\u5b9a\u6765\u4f20\u9012\u503c\u3002<br \/>\nbindValue\u51fd\u6570\u7684\u53c2\u6570\u662f\uff08\u4ece\u5de6\u5230\u53f3\u7684\u987a\u5e8f\uff0c\u8981\u8bbe\u7f6e\u7684\u503c\uff09\u3002<br \/>\n\u7136\u540e\u901a\u8fc7execute\u6765\u6267\u884c\u3002<br \/>\n\u6b64\u5916\uff0c\u901a\u8fc7\u8fdb\u4e00\u6b65\u7684\u8c03\u67e5\u8fd8\u53d1\u73b0\u5b83\u4e5f\u53ef\u4ee5\u4f5c\u4e3aSQL\u6ce8\u5165\u7684\u9632\u62a4\u63aa\u65bd\uff0c\u4f46\u8fd9\u91cc\u4e0d\u8be6\u7ec6\u8ba8\u8bba\u3002<\/p>\n<h1>\u4eceURL\u4e2d\u83b7\u53d6ID<\/p>\n<p>\u5728\u8fd9\u6b21\u5b9e\u65bd\u4e2d\u7684\u5173\u952e\u662f\u5728\u76f8\u5e94\u7684\u6587\u7ae0\u8be6\u7ec6\u9875\u9762\u4e0a\u663e\u793a\uff0c\u5173\u952e\u662f\u5982\u4f55\u83b7\u53d6\u5e76\u79fb\u52a8\u5230\u8be5\u6587\u7ae0\u7684id\u3002\u6211\u60f3\u5230\u4e86\u5728Rails\u4e2d\uff0c\u53c2\u6570params\u4f1a\u81ea\u52a8\u5c06id\u4f20\u9012\u5230URL\u4e2d\uff0c\u6240\u4ee5\u6211\u8003\u8651\u4eceURL\u4e2d\u83b7\u53d6id\u3002<br \/>\n\u9996\u5148\uff0c\u6211\u5c1d\u8bd5\u5728\u5217\u8868\u9875\u9762\u7684\u8be6\u7ec6\u6309\u94ae\u4e2d\u5d4c\u5165\u4e86id\u3002<\/p>\n<pre class=\"post-pre\"><code>\r\n <span class=\"nt\">&lt;li<\/span> <span class=\"na\">class=<\/span><span class=\"s\">\"show\"<\/span><span class=\"nt\">&gt;&lt;a<\/span> <span class=\"na\">href=<\/span><span class=\"s\">\"\/show.php?id=<\/span><span class=\"cp\">&lt;?php<\/span> <span class=\"k\">echo<\/span> <span class=\"nf\">h<\/span><span class=\"p\">(<\/span><span class=\"nv\">$blog<\/span><span class=\"o\">-&gt;<\/span><span class=\"n\">id<\/span><span class=\"p\">)<\/span><span class=\"cp\">?&gt;<\/span><span class=\"s\">\"<\/span><span class=\"nt\">&gt;<\/span>\u8a73\u7d30<span class=\"nt\">&lt;\/a&gt;&lt;\/li&gt;<\/span>\r\n<\/code><\/pre>\n<p>\u4ece\u90a3\u91cc\u63d0\u53d6URL\u4e2d\u7684ID\u3002<\/p>\n<pre class=\"post-pre\"><code>\r\n    <span class=\"nv\">$url<\/span> <span class=\"o\">=<\/span> <span class=\"nv\">$_SERVER<\/span><span class=\"p\">[<\/span><span class=\"s2\">\"REQUEST_URI\"<\/span><span class=\"p\">];<\/span>\r\n    <span class=\"nv\">$id<\/span> <span class=\"o\">=<\/span> <span class=\"nb\">substr<\/span><span class=\"p\">(<\/span><span class=\"nv\">$url<\/span><span class=\"p\">,<\/span> <span class=\"o\">-<\/span><span class=\"mi\">2<\/span><span class=\"p\">);<\/span>\r\n\r\n<span class=\"c1\">\/\/url\u306e\u4e2d\u8eab\u306f\u3053\u308c\u3067\u3059\u3002<\/span>\r\n<span class=\"c1\">\/\/http:\/\/localhost:8888\/show.php?id=88<\/span>\r\n<span class=\"c1\">\/\/substr\u3067\u5f8c\u308d\u304b\u3089\uff12\u756a\u76ee\u4ee5\u964d\u306e\u6587\u5b57\u3067\u3042\u308b88\u3092\u53d6\u5f97\u3057\u3066\u3044\u307e\u3059\u3002<\/span>\r\n\r\n<\/code><\/pre>\n<p>\u5982\u679c\u80fd\u505a\u5230\u8fd9\u4e00\u70b9\uff0c\u90a3\u540e\u9762\u53ea\u9700\u8981\u4f7f\u7528\u8be5ID\u6765\u5904\u7406SQL\u5373\u53ef\u3002<br \/>\n\u800c\u4e14\u6211\u4e0d\u592a\u6e05\u695a\u8fd9\u79cd\u5b9e\u73b0\u65b9\u5f0f\u662f\u5426\u597d\uff0c\u5982\u679c\u6709\u5176\u4ed6\u5b9e\u73b0\u65b9\u6cd5\uff0c\u8bf7\u544a\u8bc9\u6211\u3002<\/p>\n<h1>\u6700\u540e<\/p>\n<p>\u8fd9\u6b21\u5b66\u4e60PHP\u8ba9\u6211\u53d7\u76ca\u532a\u6d45\u7684\u662f\u5b66\u4f1a\u64cd\u4f5cSQL\u548c\u5904\u7406\u6570\u636e\u5e93\u3002\u867d\u8bf4\u665a\u4e86\u4e9b\uff0c\u4f46\u636e\u8bf4SQL\u7684\u5904\u7406\u65b9\u5f0f\u4f1a\u5f71\u54cd\u6027\u80fd\uff0c\u6240\u4ee5\u6211\u6253\u7b97\u7ee7\u7eed\u5b66\u4e60SQL\u3002\u6211\u81ea\u5df1\u4ee5\u524d\u5728\u4f7f\u7528Rails\u5b9e\u73b0\u670d\u52a1\u5668\u7aef\u65f6\u5b8c\u5168\u4f9d\u8d56ActiveRecord\uff0c\u5bf9\u4e8eSQL\u7684\u7406\u89e3\u975e\u5e38\u6709\u9650\uff0c\u91cd\u65b0\u8ba4\u8bc6\u5230\u4e86\u8fd9\u4e00\u70b9\u3002<\/p>\n<p>\u901a\u8fc7\u8fd9\u6b21\u5b66\u4e60\uff0c\u6211\u8ba4\u4e3a\u6211\u5bf9\u4e8ephp\u4e2d\u7684CRUD\u64cd\u4f5c\uff08\u521b\u5efa\u3001\u8bfb\u53d6\u3001\u66f4\u65b0\u3001\u5220\u9664\uff09\u6709\u4e86\u4e00\u4e9b\u521d\u6b65\u7684\u7406\u89e3\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u9996\u5148\u3002 \u4e3a\u4e86\u5b66\u4e60PHP\uff0c\u6211\u8fd9\u6b21\u5c1d\u8bd5\u521b\u5efa\u4e86\u4e00\u4e2a\u535a\u5ba2\u3002\u7531\u4e8e\u6211\u53ea\u4e13\u6ce8\u4e8e\u8ba9\u5e94\u7528\u7a0b\u5e8f\u8fd0\u884c\u8d77\u6765\uff0c\u6240\u4ee5\u8fd9\u6b21\u4ec5\u8fdb\u884c\u4e86\u6700\u57fa\u672c\u7684\u5b9e [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[227],"class_list":["post-30853","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-227"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u4f7f\u7528PHP\u521b\u5efa\u535a\u5ba2 - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"\u5173\u4e8e\u4f7f\u7528PHP\u521b\u5efa\u535a\u5ba2\u7684\u6280\u672f\u6587\u7ae0\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/zh\/blog\/\u4f7f\u7528php\u521b\u5efa\u535a\u5ba2\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u4f7f\u7528PHP\u521b\u5efa\u535a\u5ba2\" \/>\n<meta property=\"og:description\" content=\"\u5173\u4e8e\u4f7f\u7528PHP\u521b\u5efa\u535a\u5ba2\u7684\u6280\u672f\u6587\u7ae0\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/\u4f7f\u7528php\u521b\u5efa\u535a\u5ba2\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:published_time\" content=\"2022-10-31T14:49:55+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-08-12T13:06:09+00:00\" \/>\n<meta name=\"author\" content=\"\u79d1, \u96c5\" \/>\n<meta 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