{"id":96594,"date":"2024-10-20T10:45:21","date_gmt":"2024-10-20T02:45:21","guid":{"rendered":"https:\/\/server.hk\/cnblog\/96594\/"},"modified":"2024-10-20T10:45:22","modified_gmt":"2024-10-20T02:45:22","slug":"php%e5%af%a6%e7%8f%be%e9%ab%98%e6%95%88%e7%8d%b2%e5%8f%96%e7%b6%93%e7%b7%af%e5%ba%a6%e6%95%b8%e6%93%9a-%e6%95%b8%e6%93%9a%e5%ba%ab%e6%8a%80%e5%b7%a7%e5%88%86%e4%ba%ab-php%e7%8d%b2","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/96594\/","title":{"rendered":"php\u5be6\u73fe\u9ad8\u6548\u7372\u53d6\u7d93\u7def\u5ea6\u6578\u64da\u2014\u2014\u6578\u64da\u5eab\u6280\u5de7\u5206\u4eab (php\u7372\u53d6\u7d93\u7def\u5ea6\u6578\u64da\u5eab)"},"content":{"rendered":"<h1 id=\"php%e5%af%a6%e7%8f%be%e9%ab%98%e6%95%88%e7%8d%b2%e5%8f%96%e7%b6%93%e7%b7%af%e5%ba%a6%e6%95%b8%e6%93%9a-%e6%95%b8%e6%93%9a%e5%ba%ab%e6%8a%80%e5%b7%a7%e5%88%86%e4%ba%ab-qBokFUDqrf\">PHP\u5be6\u73fe\u9ad8\u6548\u7372\u53d6\u7d93\u7def\u5ea6\u6578\u64da\u2014\u2014\u6578\u64da\u5eab\u6280\u5de7\u5206\u4eab<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u7db2\u7d61\u61c9\u7528\u4e2d\uff0c\u5730\u7406\u4f4d\u7f6e\u6578\u64da\u7684\u7372\u53d6\u8207\u4f7f\u7528\u8b8a\u5f97\u8d8a\u4f86\u8d8a\u91cd\u8981\u3002\u7121\u8ad6\u662f\u7528\u65bc\u5730\u5716\u670d\u52d9\u3001\u4f4d\u7f6e\u57fa\u790e\u7684\u61c9\u7528\uff0c\u9084\u662f\u6578\u64da\u5206\u6790\uff0c\u7d93\u7def\u5ea6\u6578\u64da\u7684\u9ad8\u6548\u7372\u53d6\u90fd\u662f\u958b\u767c\u8005\u9700\u8981\u9762\u5c0d\u7684\u6311\u6230\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u4f7f\u7528PHP\u548c\u6578\u64da\u5eab\u6280\u8853\u9ad8\u6548\u7372\u53d6\u7d93\u7def\u5ea6\u6578\u64da\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u6280\u5de7\u548c\u793a\u4f8b\u3002<\/p>\n<h2 id=\"%e7%b6%93%e7%b7%af%e5%ba%a6%e6%95%b8%e6%93%9a%e7%9a%84%e5%ad%98%e5%84%b2-qBokFUDqrf\">\u7d93\u7def\u5ea6\u6578\u64da\u7684\u5b58\u5132<\/h2>\n<p>\u7d93\u7def\u5ea6\u6578\u64da\u901a\u5e38\u4ee5\u6d6e\u9ede\u6578\u7684\u5f62\u5f0f\u5b58\u5132\u5728\u6578\u64da\u5eab\u4e2d\u3002\u70ba\u4e86\u63d0\u9ad8\u67e5\u8a62\u6548\u7387\uff0c\u5efa\u8b70\u4f7f\u7528\u9069\u7576\u7684\u6578\u64da\u985e\u578b\u3002\u4f8b\u5982\uff0c\u5728MySQL\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u6578\u64da\u985e\u578b\u4f86\u5b58\u5132\u7d93\u7def\u5ea6\uff1a<\/p>\n<ul>\n<li><code>FLOAT<\/code>\uff1a\u9069\u5408\u5b58\u5132\u7d93\u7def\u5ea6\uff0c\u7cbe\u5ea6\u53ef\u9054\u5230\u5c0f\u6578\u9ede\u5f8c7\u4f4d\u3002<\/li>\n<li><code>DECIMAL<\/code>\uff1a\u5982\u679c\u9700\u8981\u66f4\u9ad8\u7684\u7cbe\u5ea6\uff0c\u53ef\u4ee5\u4f7f\u7528\u6b64\u985e\u578b\uff0c\u683c\u5f0f\u70ba<code>DECIMAL(9,6)<\/code>\u3002<\/li>\n<\/ul>\n<p>\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u6578\u64da\u8868\u7d50\u69cb\u793a\u4f8b\uff1a<\/p>\n<pre><code>CREATE TABLE locations (\n    id INT AUTO_INCREMENT PRIMARY KEY,\n    name VARCHAR(100),\n    latitude DECIMAL(9,6),\n    longitude DECIMAL(9,6)\n);<\/code><\/pre>\n<h2 id=\"%e9%ab%98%e6%95%88%e6%9f%a5%e8%a9%a2%e7%b6%93%e7%b7%af%e5%ba%a6%e6%95%b8%e6%93%9a-qBokFUDqrf\">\u9ad8\u6548\u67e5\u8a62\u7d93\u7def\u5ea6\u6578\u64da<\/h2>\n<p>\u5728\u67e5\u8a62\u7d93\u7def\u5ea6\u6578\u64da\u6642\uff0c\u4f7f\u7528\u7d22\u5f15\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u67e5\u8a62\u6027\u80fd\u3002\u5c0d\u65bc\u7d93\u7def\u5ea6\u5b57\u6bb5\uff0c\u5efa\u8b70\u5275\u5efa\u8907\u5408\u7d22\u5f15\u3002\u4ee5\u4e0b\u662f\u5275\u5efa\u7d22\u5f15\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>CREATE INDEX idx_lat_long ON locations (latitude, longitude);<\/code><\/pre>\n<p>\u7576\u9700\u8981\u6839\u64da\u7d93\u7def\u5ea6\u7bc4\u570d\u67e5\u8a62\u4f4d\u7f6e\u6642\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0bSQL\u8a9e\u53e5\uff1a<\/p>\n<pre><code>SELECT * FROM locations \nWHERE latitude BETWEEN ? AND ? \nAND longitude BETWEEN ? AND ?;<\/code><\/pre>\n<h2 id=\"%e4%bd%bf%e7%94%a8php%e7%8d%b2%e5%8f%96%e7%b6%93%e7%b7%af%e5%ba%a6%e6%95%b8%e6%93%9a-qBokFUDqrf\">\u4f7f\u7528PHP\u7372\u53d6\u7d93\u7def\u5ea6\u6578\u64da<\/h2>\n<p>\u5728PHP\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528PDO\u6216MySQLi\u4f86\u9023\u63a5\u6578\u64da\u5eab\u4e26\u57f7\u884c\u67e5\u8a62\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u4f7f\u7528PDO\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>&lt;?php\n$dsn = 'mysql:host=localhost;dbname=testdb';\n$username = 'root';\n$password = 'password';\n\ntry {\n    $pdo = new PDO($dsn, $username, $password);\n    $pdo-&gt;setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);\n\n    $lat_min = 22.0;\n    $lat_max = 23.0;\n    $long_min = 113.0;\n    $long_max = 114.0;\n\n    $stmt = $pdo-&gt;prepare(\"SELECT * FROM locations \n                            WHERE latitude BETWEEN :lat_min AND :lat_max \n                            AND longitude BETWEEN :long_min AND :long_max\");\n    $stmt-&gt;execute(['lat_min' =&gt; $lat_min, 'lat_max' =&gt; $lat_max, \n                    'long_min' =&gt; $long_min, 'long_max' =&gt; $long_max]);\n\n    $results = $stmt-&gt;fetchAll(PDO::FETCH_ASSOC);\n    foreach ($results as $row) {\n        echo $row['name'] . \" - \" . $row['latitude'] . \", \" . $row['longitude'] . \"&lt;br&gt;\";\n    }\n} catch (PDOException $e) {\n    echo 'Connection failed: ' . $e-&gt;getMessage();\n}\n?&gt;<\/code><\/pre>\n<h2 id=\"%e5%84%aa%e5%8c%96%e7%b6%93%e7%b7%af%e5%ba%a6%e6%9f%a5%e8%a9%a2%e7%9a%84%e6%8a%80%e5%b7%a7-qBokFUDqrf\">\u512a\u5316\u7d93\u7def\u5ea6\u67e5\u8a62\u7684\u6280\u5de7<\/h2>\n<p>\u9664\u4e86\u4f7f\u7528\u7d22\u5f15\u5916\uff0c\u9084\u53ef\u4ee5\u8003\u616e\u4ee5\u4e0b\u5e7e\u500b\u512a\u5316\u6280\u5de7\uff1a<\/p>\n<ul>\n<li><strong>\u5730\u7406\u7a7a\u9593\u7d22\u5f15<\/strong>\uff1a\u5982\u679c\u4f7f\u7528MySQL 5.7\u6216\u66f4\u9ad8\u7248\u672c\uff0c\u53ef\u4ee5\u8003\u616e\u4f7f\u7528\u5730\u7406\u7a7a\u9593\u7d22\u5f15\u4f86\u63d0\u9ad8\u67e5\u8a62\u6548\u7387\u3002<\/li>\n<li><strong>\u7de9\u5b58\u7d50\u679c<\/strong>\uff1a\u5c0d\u65bc\u983b\u7e41\u67e5\u8a62\u7684\u7d93\u7def\u5ea6\u6578\u64da\uff0c\u53ef\u4ee5\u8003\u616e\u4f7f\u7528\u7de9\u5b58\u6280\u8853\uff0c\u5982Redis\uff0c\u4f86\u6e1b\u5c11\u6578\u64da\u5eab\u7684\u8ca0\u64d4\u3002<\/li>\n<li><strong>\u6279\u91cf\u67e5\u8a62<\/strong>\uff1a\u5982\u679c\u9700\u8981\u7372\u53d6\u5927\u91cf\u7d93\u7def\u5ea6\u6578\u64da\uff0c\u5efa\u8b70\u4f7f\u7528\u6279\u91cf\u67e5\u8a62\u4f86\u6e1b\u5c11\u8acb\u6c42\u6b21\u6578\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-qBokFUDqrf\">\u7e3d\u7d50<\/h2>\n<p>\u9ad8\u6548\u7372\u53d6\u7d93\u7def\u5ea6\u6578\u64da\u662f\u958b\u767c\u5730\u7406\u4f4d\u7f6e\u61c9\u7528\u7684\u95dc\u9375\u3002\u901a\u904e\u5408\u7406\u7684\u6578\u64da\u5eab\u8a2d\u8a08\u3001\u7d22\u5f15\u4f7f\u7528\u4ee5\u53caPHP\u7684\u6709\u6548\u67e5\u8a62\uff0c\u53ef\u4ee5\u986f\u8457\u63d0\u9ad8\u6578\u64da\u7372\u53d6\u7684\u6548\u7387\u3002\u5e0c\u671b\u672c\u6587\u63d0\u4f9b\u7684\u6280\u5de7\u80fd\u5e6b\u52a9\u958b\u767c\u8005\u5728\u5be6\u969b\u61c9\u7528\u4e2d\u66f4\u597d\u5730\u8655\u7406\u7d93\u7def\u5ea6\u6578\u64da\u3002<\/p>\n<p>\u5982\u9700\u4e86\u89e3\u66f4\u591a\u95dc\u65bc<code><a href=\"https:\/\/server.hk\">VPS<\/a><\/code>\u548c<code><a href=\"https:\/\/server.hk\">\u9999\u6e2f\u4f3a\u670d\u5668<\/a><\/code>\u7684\u8cc7\u8a0a\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u5982\u4f55\u4f7f\u7528PHP\u9ad8\u6548\u7372\u53d6\u7d93\u7def\u5ea6\u6578\u64da\uff0c\u5206\u4eab\u6578\u64da\u5eab\u6280\u5de7\uff0c\u63d0\u5347\u61c9\u7528\u6027\u80fd\u8207\u6578\u64da\u8655\u7406\u6548\u7387\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-96594","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/96594","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=96594"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/96594\/revisions"}],"predecessor-version":[{"id":96595,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/96594\/revisions\/96595"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=96594"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=96594"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=96594"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}