{"id":47597,"date":"2024-12-02T09:15:30","date_gmt":"2024-12-02T01:15:30","guid":{"rendered":"https:\/\/fwq.ai\/blog\/47597\/"},"modified":"2024-12-02T09:15:30","modified_gmt":"2024-12-02T01:15:30","slug":"php-%e5%87%bd%e6%95%b0%e5%8f%82%e6%95%b0%e7%bb%91%e5%ae%9a%e7%9a%84%e6%9c%80%e4%bd%b3%e5%ae%9e%e8%b7%b5%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/47597\/","title":{"rendered":"PHP \u51fd\u6570\u53c2\u6570\u7ed1\u5b9a\u7684\u6700\u4f73\u5b9e\u8df5\uff1f"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>PHP \u51fd\u6570\u53c2\u6570\u7ed1\u5b9a\u7684\u6700\u4f73\u5b9e\u8df5\uff1f<\/h1>\n<p><span style=\"font-size: 15px\">\u5b66\u4e60\u77e5\u8bc6\u8981\u5584\u4e8e\u601d\u8003\uff0c\u601d\u8003\uff0c\u518d\u601d\u8003\uff01\u4eca\u5929\u7c73\u4e91\u5c0f\u7f16\u5c31\u7ed9\u5927\u5bb6\u5e26\u6765<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aPHP \u51fd\u6570\u53c2\u6570\u7ed1\u5b9a\u7684\u6700\u4f73\u5b9e\u8df5\uff1f\u300b<\/span>\uff0c\u4ee5\u4e0b\u5185\u5bb9\u4e3b\u8981\u5305\u542b<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span>\u7b49\u77e5\u8bc6\u70b9\uff0c\u5982\u679c\u4f60\u6b63\u5728\u5b66\u4e60\u6216\u51c6\u5907\u5b66\u4e60<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u6587\u7ae0<\/span>\uff0c\u5c31\u90fd\u4e0d\u8981\u9519\u8fc7\u672c\u6587\u5566~\u8ba9\u6211\u4eec\u4e00\u8d77\u6765\u770b\u770b\u5427\uff0c\u80fd\u5e2e\u52a9\u5230\u4f60\u5c31\u66f4\u597d\u4e86\uff01<\/span><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241026\/1729925014671c8f965c073.jpg\" class=\"aligncenter\" title=\"PHP \u51fd\u6570\u53c2\u6570\u7ed1\u5b9a\u7684\u6700\u4f73\u5b9e\u8df5\uff1f\u63d2\u56fe\" alt=\"PHP \u51fd\u6570\u53c2\u6570\u7ed1\u5b9a\u7684\u6700\u4f73\u5b9e\u8df5\uff1f\u63d2\u56fe\" \/><\/p>\n<p><strong>PHP \u51fd\u6570\u53c2\u6570\u7ed1\u5b9a\u7684\u6700\u4f73\u5b9e\u8df5<\/strong><\/p>\n<p><strong>\u4ec0\u4e48\u662f\u53c2\u6570\u7ed1\u5b9a\uff1f<\/strong><\/p>\n<p>\u53c2\u6570\u7ed1\u5b9a\u662f\u4e00\u79cd\u5c06\u503c\u4f20\u9012\u7ed9\u51fd\u6570\u53c2\u6570\u7684\u6280\u5de7\uff0c\u5b83\u53ef\u4ee5\u9632\u6b62 SQL \u6ce8\u5165\u653b\u51fb\u3002\u5b83\u6d89\u53ca\u5728 SQL \u67e5\u8be2\u4e2d\u4f7f\u7528\u5360\u4f4d\u7b26\uff0c\u7136\u540e\u4f7f\u7528\u4e00\u4e2a\u5355\u72ec\u7684\u8fc7\u7a0b\u5c06\u503c\u7ed1\u5b9a\u5230\u8fd9\u4e9b\u5360\u4f4d\u7b26\u3002<\/p>\n<p><strong>\u6700\u4f73\u5b9e\u8df5<\/strong><\/p>\n<ul>\n<li><strong>\u603b\u662f\u4f7f\u7528\u53c2\u6570\u7ed1\u5b9a\uff1a<\/strong>\u4e3a\u51fd\u6570\u53c2\u6570\u6307\u5b9a\u503c\u65f6\uff0c\u4f7f\u7528\u53c2\u6570\u7ed1\u5b9a\u4ee5\u907f\u514d SQL \u6ce8\u5165\u6f0f\u6d1e\u3002<\/li>\n<li><strong>\u4f7f\u7528\u5360\u4f4d\u7b26\uff1a<\/strong>\u4f7f\u7528\u95ee\u53f7 (?) \u4f5c\u4e3a\u5360\u4f4d\u7b26\uff0c\u8868\u793a\u5c06\u7ed1\u5b9a\u5230\u67e5\u8be2\u7684\u53c2\u6570\u3002\u4f8b\u5982\uff0c<code>SELECT * FROM users WHERE username = ?<\/code><\/li>\n<li><strong>\u4f7f\u7528 prepared statement\uff1a<\/strong>\u4f7f\u7528 <code>mysql_stmt_init()<\/code>\u3001<code>mysql_stmt_prepare()<\/code> \u548c <code>mysql_stmt_bind_param()<\/code> \u7b49\u51fd\u6570 prepared statement\uff0c\u4ee5\u63d0\u9ad8\u6027\u80fd\u548c\u5b89\u5168\u6027\u3002<\/li>\n<li><strong>\u7ed1\u5b9a\u6570\u636e\u7c7b\u578b\uff1a<\/strong>\u6307\u5b9a\u8981\u7ed1\u5b9a\u7684\u6570\u636e\u7684\u7c7b\u578b\uff08\u4f8b\u5982\u5b57\u7b26\u4e32\u3001\u6574\u6570\uff09\uff0c\u4ee5\u8fdb\u884c\u7c7b\u578b\u68c0\u67e5\u548c\u9632\u6b62\u6ce8\u5165\u3002\u4f8b\u5982\uff0c<code>mysql_stmt_bind_param(\"s\", $username);<\/code><\/li>\n<li><strong>\u6267\u884c\u7ed1\u5b9a\uff1a<\/strong>\u8c03\u7528 <code>mysql_stmt_execute()<\/code> \u6267\u884c\u51c6\u5907\u597d\u7684\u67e5\u8be2\uff0c\u5e76\u4f7f\u7528\u7ed1\u5b9a\u7684\u503c\u3002<\/li>\n<li><strong>\u5173\u95ed prepared statement\uff1a<\/strong>\u4f7f\u7528 <code>mysql_stmt_close()<\/code> \u5173\u95ed prepared statement\uff0c\u4ee5\u91ca\u653e\u8d44\u6e90\u3002<\/li>\n<\/ul>\n<p><strong>\u5b9e\u6218\u6848\u4f8b<\/strong><\/p>\n<p>\u8003\u8651\u4ee5\u4e0b PHP \u4ee3\u7801\uff0c\u5b83\u4ece\u6570\u636e\u5e93\u4e2d\u68c0\u7d22\u5177\u6709\u7ed9\u5b9a\u7528\u6237\u540d\u548c\u5bc6\u7801\u7684\u7528\u6237\uff1a<\/p>\n<pre>$username = 'jsmith';\n$password = 'password123';\n\n$query = \"SELECT * FROM users WHERE username = '$username' AND password = '$password'\";\n$result = mysql_query($query);<\/pre>\n<p>\u6b64\u4ee3\u7801\u5bb9\u6613\u53d7\u5230 SQL \u6ce8\u5165\u653b\u51fb\uff0c\u56e0\u4e3a\u653b\u51fb\u8005\u53ef\u4ee5\u4fee\u6539 <code>$username<\/code> \u6216 <code>$password<\/code> \u53d8\u91cf\u7684\u503c\uff0c\u4ece\u800c\u8fd0\u884c\u4efb\u610f SQL \u67e5\u8be2\u3002<\/p>\n<p>\u8981\u4f7f\u7528\u53c2\u6570\u7ed1\u5b9a\u4fee\u590d\u6b64\u4ee3\u7801\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u66f4\u65b0\u540e\u7684\u4ee3\u7801\uff1a<\/p>\n<pre>$stmt = mysql_stmt_init($conn);\n$query = \"SELECT * FROM users WHERE username = ? AND password = ?\";\nmysql_stmt_prepare($stmt, $query);\nmysql_stmt_bind_param($stmt, \"ss\", $username, $password);\nmysql_stmt_execute($stmt);\n$result = mysql_stmt_get_result($stmt);\nmysql_stmt_close($stmt);<\/pre>\n<p>\u6b64\u4ee3\u7801\u4f7f\u7528\u53c2\u6570\u7ed1\u5b9a\u6765\u9632\u6b62 SQL \u6ce8\u5165\uff0c\u56e0\u4e3a <code>$username<\/code> \u548c <code>$password<\/code> \u503c\u5728\u6267\u884c\u67e5\u8be2\u4e4b\u524d\u88ab\u7ed1\u5b9a\u5230 prepared statement \u4e2d\u3002<\/p>\n<p>\u4eca\u5929\u5173\u4e8e\u300aPHP \u51fd\u6570\u53c2\u6570\u7ed1\u5b9a\u7684\u6700\u4f73\u5b9e\u8df5\uff1f\u300b\u7684\u5185\u5bb9\u4ecb\u7ecd\u5c31\u5230\u6b64\u7ed3\u675f\uff0c\u5982\u679c\u6709\u4ec0\u4e48\u7591\u95ee\u6216\u8005\u5efa\u8bae\uff0c\u53ef\u4ee5\u5728\u7c73\u4e91\u516c\u4f17\u53f7\u4e0b\u591a\u591a\u56de\u590d\u4ea4\u6d41\uff1b\u6587\u4e2d\u82e5\u6709\u4e0d\u6b63\u4e4b\u5904\uff0c\u4e5f\u5e0c\u671b\u56de\u590d\u7559\u8a00\u4ee5\u544a\u77e5\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>PHP \u51fd\u6570\u53c2\u6570\u7ed1\u5b9a\u7684\u6700\u4f73\u5b9e\u8df5\uff1f \u5b66\u4e60\u77e5\u8bc6\u8981\u5584\u4e8e\u601d\u8003\uff0c\u601d\u8003\uff0c\u518d\u601d\u8003\uff01\u4eca\u5929\u7c73\u4e91\u5c0f\u7f16\u5c31\u7ed9\u5927\u5bb6\u5e26\u6765\u300aPHP \u51fd\u6570\u53c2\u6570\u7ed1\u5b9a\u7684\u6700\u4f73\u5b9e\u8df5\uff1f\u300b\uff0c\u4ee5\u4e0b\u5185\u5bb9\u4e3b\u8981\u5305\u542b\u7b49\u77e5\u8bc6\u70b9\uff0c\u5982\u679c\u4f60\u6b63\u5728\u5b66\u4e60\u6216\u51c6\u5907\u5b66\u4e60\u6587\u7ae0\uff0c\u5c31\u90fd\u4e0d\u8981\u9519\u8fc7\u672c\u6587\u5566~\u8ba9\u6211\u4eec\u4e00\u8d77\u6765\u770b\u770b\u5427\uff0c\u80fd\u5e2e\u52a9\u5230\u4f60\u5c31\u66f4\u597d\u4e86\uff01 PHP \u51fd\u6570\u53c2\u6570\u7ed1\u5b9a\u7684\u6700\u4f73\u5b9e\u8df5 \u4ec0\u4e48\u662f\u53c2\u6570\u7ed1\u5b9a\uff1f \u53c2\u6570\u7ed1\u5b9a\u662f\u4e00\u79cd\u5c06\u503c\u4f20\u9012\u7ed9\u51fd\u6570\u53c2\u6570\u7684\u6280\u5de7\uff0c\u5b83\u53ef\u4ee5\u9632\u6b62 SQL \u6ce8\u5165\u653b\u51fb\u3002\u5b83\u6d89\u53ca\u5728 SQL \u67e5\u8be2\u4e2d\u4f7f\u7528\u5360\u4f4d\u7b26\uff0c\u7136\u540e\u4f7f\u7528\u4e00\u4e2a\u5355\u72ec\u7684\u8fc7\u7a0b\u5c06\u503c\u7ed1\u5b9a\u5230\u8fd9\u4e9b\u5360\u4f4d\u7b26\u3002 \u6700\u4f73\u5b9e\u8df5 \u603b\u662f\u4f7f\u7528\u53c2\u6570\u7ed1\u5b9a\uff1a\u4e3a\u51fd\u6570\u53c2\u6570\u6307\u5b9a\u503c\u65f6\uff0c\u4f7f\u7528\u53c2\u6570\u7ed1\u5b9a\u4ee5\u907f\u514d SQL \u6ce8\u5165\u6f0f\u6d1e\u3002 \u4f7f\u7528\u5360\u4f4d\u7b26\uff1a\u4f7f\u7528\u95ee\u53f7 (?) \u4f5c\u4e3a\u5360\u4f4d\u7b26\uff0c\u8868\u793a\u5c06\u7ed1\u5b9a\u5230\u67e5\u8be2\u7684\u53c2\u6570\u3002\u4f8b\u5982\uff0cSELECT * FROM users WHERE username = ? \u4f7f\u7528 prepared statement\uff1a\u4f7f\u7528 mysql_stmt_init()\u3001mysql_stmt_prepare() \u548c mysql_stmt_bind_param() \u7b49\u51fd\u6570 prepared statement\uff0c\u4ee5\u63d0\u9ad8\u6027\u80fd\u548c\u5b89\u5168\u6027\u3002 \u7ed1\u5b9a\u6570\u636e\u7c7b\u578b\uff1a\u6307\u5b9a\u8981\u7ed1\u5b9a\u7684\u6570\u636e\u7684\u7c7b\u578b\uff08\u4f8b\u5982\u5b57\u7b26\u4e32\u3001\u6574\u6570\uff09\uff0c\u4ee5\u8fdb\u884c\u7c7b\u578b\u68c0\u67e5\u548c\u9632\u6b62\u6ce8\u5165\u3002\u4f8b\u5982\uff0cmysql_stmt_bind_param(&#8220;s&#8221;, $username); \u6267\u884c\u7ed1\u5b9a\uff1a\u8c03\u7528 mysql_stmt_execute() \u6267\u884c\u51c6\u5907\u597d\u7684\u67e5\u8be2\uff0c\u5e76\u4f7f\u7528\u7ed1\u5b9a\u7684\u503c\u3002 \u5173\u95ed prepared statement\uff1a\u4f7f\u7528 mysql_stmt_close() \u5173\u95ed prepared statement\uff0c\u4ee5\u91ca\u653e\u8d44\u6e90\u3002 \u5b9e\u6218\u6848\u4f8b \u8003\u8651\u4ee5\u4e0b PHP \u4ee3\u7801\uff0c\u5b83\u4ece\u6570\u636e\u5e93\u4e2d\u68c0\u7d22\u5177\u6709\u7ed9\u5b9a\u7528\u6237\u540d\u548c\u5bc6\u7801\u7684\u7528\u6237\uff1a $username = &#8216;jsmith&#8217;; $password [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-47597","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/47597","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=47597"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/47597\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=47597"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=47597"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=47597"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}