{"id":11554,"date":"2024-03-14T14:19:10","date_gmt":"2024-03-14T14:19:10","guid":{"rendered":"https:\/\/www.silicloud.com\/blog\/how-can-php-retrieve-the-database-query-results-of-a-website\/"},"modified":"2025-08-04T13:31:01","modified_gmt":"2025-08-04T13:31:01","slug":"how-can-php-retrieve-the-database-query-results-of-a-website","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/blog\/how-can-php-retrieve-the-database-query-results-of-a-website\/","title":{"rendered":"PHP Database Query Examples"},"content":{"rendered":"<p>In PHP, you can use the MySQLi or PDO extensions to connect to a database and execute queries. Below is an example code demonstrating how to connect to a database and retrieve query results:<\/p>\n<p>Utilize the MySQLi extension:<\/p>\n<pre class=\"post-pre\"><code><span class=\"hljs-comment\">\/\/ \u8fde\u63a5\u6570\u636e\u5e93<\/span>\r\n<span class=\"hljs-variable\">$connection<\/span> = <span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title function_ invoke__\">mysqli<\/span>(<span class=\"hljs-string\">'localhost'<\/span>, <span class=\"hljs-string\">'username'<\/span>, <span class=\"hljs-string\">'password'<\/span>, <span class=\"hljs-string\">'database_name'<\/span>);\r\n\r\n<span class=\"hljs-comment\">\/\/ \u68c0\u67e5\u8fde\u63a5\u662f\u5426\u6210\u529f<\/span>\r\n<span class=\"hljs-keyword\">if<\/span> (<span class=\"hljs-variable\">$connection<\/span>-&gt;connect_error) {\r\n    <span class=\"hljs-keyword\">die<\/span>(<span class=\"hljs-string\">'\u6570\u636e\u5e93\u8fde\u63a5\u5931\u8d25: '<\/span> . <span class=\"hljs-variable\">$connection<\/span>-&gt;connect_error);\r\n}\r\n\r\n<span class=\"hljs-comment\">\/\/ \u6267\u884c\u67e5\u8be2<\/span>\r\n<span class=\"hljs-variable\">$query<\/span> = <span class=\"hljs-variable\">$connection<\/span>-&gt;<span class=\"hljs-title function_ invoke__\">query<\/span>(<span class=\"hljs-string\">'SELECT * FROM table_name'<\/span>);\r\n\r\n<span class=\"hljs-comment\">\/\/ \u68c0\u67e5\u67e5\u8be2\u662f\u5426\u6210\u529f<\/span>\r\n<span class=\"hljs-keyword\">if<\/span> (<span class=\"hljs-variable\">$query<\/span>) {\r\n    <span class=\"hljs-comment\">\/\/ \u83b7\u53d6\u67e5\u8be2\u7ed3\u679c<\/span>\r\n    <span class=\"hljs-keyword\">while<\/span> (<span class=\"hljs-variable\">$row<\/span> = <span class=\"hljs-variable\">$query<\/span>-&gt;<span class=\"hljs-title function_ invoke__\">fetch_assoc<\/span>()) {\r\n        <span class=\"hljs-comment\">\/\/ \u5904\u7406\u67e5\u8be2\u7ed3\u679c<\/span>\r\n        <span class=\"hljs-keyword\">echo<\/span> <span class=\"hljs-variable\">$row<\/span>[<span class=\"hljs-string\">'column_name'<\/span>] . <span class=\"hljs-string\">'&lt;br&gt;'<\/span>;\r\n    }\r\n} <span class=\"hljs-keyword\">else<\/span> {\r\n    <span class=\"hljs-keyword\">echo<\/span> <span class=\"hljs-string\">'\u67e5\u8be2\u5931\u8d25: '<\/span> . <span class=\"hljs-variable\">$connection<\/span>-&gt;error;\r\n}\r\n\r\n<span class=\"hljs-comment\">\/\/ \u5173\u95ed\u6570\u636e\u5e93\u8fde\u63a5<\/span>\r\n<span class=\"hljs-variable\">$connection<\/span>-&gt;<span class=\"hljs-title function_ invoke__\">close<\/span>();\r\n<\/code><\/pre>\n<p>Utilize the PDO extension:<\/p>\n<pre class=\"post-pre\"><code><span class=\"hljs-comment\">\/\/ \u8fde\u63a5\u6570\u636e\u5e93<\/span>\r\n<span class=\"hljs-variable\">$dsn<\/span> = <span class=\"hljs-string\">'mysql:host=localhost;dbname=database_name'<\/span>;\r\n<span class=\"hljs-variable\">$username<\/span> = <span class=\"hljs-string\">'username'<\/span>;\r\n<span class=\"hljs-variable\">$password<\/span> = <span class=\"hljs-string\">'password'<\/span>;\r\n\r\n<span class=\"hljs-keyword\">try<\/span> {\r\n    <span class=\"hljs-variable\">$connection<\/span> = <span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title function_ invoke__\">PDO<\/span>(<span class=\"hljs-variable\">$dsn<\/span>, <span class=\"hljs-variable\">$username<\/span>, <span class=\"hljs-variable\">$password<\/span>);\r\n    <span class=\"hljs-variable\">$connection<\/span>-&gt;<span class=\"hljs-title function_ invoke__\">setAttribute<\/span>(PDO::<span class=\"hljs-variable constant_\">ATTR_ERRMODE<\/span>, PDO::<span class=\"hljs-variable constant_\">ERRMODE_EXCEPTION<\/span>);\r\n} <span class=\"hljs-keyword\">catch<\/span> (PDOException <span class=\"hljs-variable\">$e<\/span>) {\r\n    <span class=\"hljs-keyword\">die<\/span>(<span class=\"hljs-string\">'\u6570\u636e\u5e93\u8fde\u63a5\u5931\u8d25: '<\/span> . <span class=\"hljs-variable\">$e<\/span>-&gt;<span class=\"hljs-title function_ invoke__\">getMessage<\/span>());\r\n}\r\n\r\n<span class=\"hljs-comment\">\/\/ \u6267\u884c\u67e5\u8be2<\/span>\r\n<span class=\"hljs-variable\">$query<\/span> = <span class=\"hljs-variable\">$connection<\/span>-&gt;<span class=\"hljs-title function_ invoke__\">query<\/span>(<span class=\"hljs-string\">'SELECT * FROM table_name'<\/span>);\r\n\r\n<span class=\"hljs-comment\">\/\/ \u83b7\u53d6\u67e5\u8be2\u7ed3\u679c<\/span>\r\n<span class=\"hljs-keyword\">while<\/span> (<span class=\"hljs-variable\">$row<\/span> = <span class=\"hljs-variable\">$query<\/span>-&gt;<span class=\"hljs-title function_ invoke__\">fetch<\/span>()) {\r\n    <span class=\"hljs-comment\">\/\/ \u5904\u7406\u67e5\u8be2\u7ed3\u679c<\/span>\r\n    <span class=\"hljs-keyword\">echo<\/span> <span class=\"hljs-variable\">$row<\/span>[<span class=\"hljs-string\">'column_name'<\/span>] . <span class=\"hljs-string\">'&lt;br&gt;'<\/span>;\r\n}\r\n\r\n<span class=\"hljs-comment\">\/\/ \u5173\u95ed\u6570\u636e\u5e93\u8fde\u63a5<\/span>\r\n<span class=\"hljs-variable\">$connection<\/span> = <span class=\"hljs-literal\">null<\/span>;\r\n<\/code><\/pre>\n<p>By using the code examples above, you can successfully connect to a database and retrieve query results. In practical applications, it is necessary to modify and expand the code according to specific requirements and database operations.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In PHP, you can use the MySQLi or PDO extensions to connect to a database and execute queries. Below is an example code demonstrating how to connect to a database and retrieve query results: Utilize the MySQLi extension: \/\/ \u8fde\u63a5\u6570\u636e\u5e93 $connection = new mysqli(&#8216;localhost&#8217;, &#8216;username&#8217;, &#8216;password&#8217;, &#8216;database_name&#8217;); \/\/ \u68c0\u67e5\u8fde\u63a5\u662f\u5426\u6210\u529f if ($connection-&gt;connect_error) { die(&#8216;\u6570\u636e\u5e93\u8fde\u63a5\u5931\u8d25: &#8216; . [&hellip;]<\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_import_markdown_pro_load_document_selector":0,"_import_markdown_pro_submit_text_textarea":"","footnotes":""},"categories":[1],"tags":[14931,3136,3137,11518,14930],"class_list":["post-11554","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-database-results","tag-mysqli","tag-pdo","tag-php-database","tag-php-queries"],"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>PHP Database Query Examples - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"Learn how to use MySQLi and PDO extensions to retrieve database query results in PHP with practical examples.\" \/>\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\/blog\/how-can-php-retrieve-the-database-query-results-of-a-website\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"PHP Database Query Examples\" \/>\n<meta property=\"og:description\" content=\"Learn how to use MySQLi and PDO extensions to retrieve database query results in PHP with practical examples.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/blog\/how-can-php-retrieve-the-database-query-results-of-a-website\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/SiliCloudGlobal\/\" \/>\n<meta property=\"article:published_time\" content=\"2024-03-14T14:19:10+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-08-04T13:31:01+00:00\" \/>\n<meta name=\"author\" content=\"William Carter\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@SiliCloudGlobal\" \/>\n<meta name=\"twitter:site\" content=\"@SiliCloudGlobal\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"William Carter\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/how-can-php-retrieve-the-database-query-results-of-a-website\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/how-can-php-retrieve-the-database-query-results-of-a-website\/\"},\"author\":{\"name\":\"William Carter\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/#\/schema\/person\/f697031891aacefc4b681d139781d3c0\"},\"headline\":\"PHP Database Query Examples\",\"datePublished\":\"2024-03-14T14:19:10+00:00\",\"dateModified\":\"2025-08-04T13:31:01+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/how-can-php-retrieve-the-database-query-results-of-a-website\/\"},\"wordCount\":82,\"publisher\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/#organization\"},\"keywords\":[\"database results\",\"MySQLi\",\"PDO\",\"PHP database\",\"PHP queries\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/how-can-php-retrieve-the-database-query-results-of-a-website\/\",\"url\":\"https:\/\/www.silicloud.com\/blog\/how-can-php-retrieve-the-database-query-results-of-a-website\/\",\"name\":\"PHP Database Query Examples - Blog - Silicon Cloud\",\"isPartOf\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/#website\"},\"datePublished\":\"2024-03-14T14:19:10+00:00\",\"dateModified\":\"2025-08-04T13:31:01+00:00\",\"description\":\"Learn how to use MySQLi and PDO extensions to retrieve database query results in PHP with practical examples.\",\"breadcrumb\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/how-can-php-retrieve-the-database-query-results-of-a-website\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.silicloud.com\/blog\/how-can-php-retrieve-the-database-query-results-of-a-website\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/how-can-php-retrieve-the-database-query-results-of-a-website\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/www.silicloud.com\/blog\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"PHP Database Query Examples\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/#website\",\"url\":\"https:\/\/www.silicloud.com\/blog\/\",\"name\":\"Silicon Cloud Blog\",\"description\":\"\",\"publisher\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/#organization\"},\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/#organization\",\"name\":\"Silicon Cloud Blog\",\"url\":\"https:\/\/www.silicloud.com\/blog\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/www.silicloud.com\/blog\/wp-content\/uploads\/2023\/11\/EN-SILICON-Full.png\",\"contentUrl\":\"https:\/\/www.silicloud.com\/blog\/wp-content\/uploads\/2023\/11\/EN-SILICON-Full.png\",\"width\":1024,\"height\":1024,\"caption\":\"Silicon Cloud Blog\"},\"image\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/#\/schema\/logo\/image\/\"},\"sameAs\":[\"https:\/\/www.facebook.com\/SiliCloudGlobal\/\",\"https:\/\/twitter.com\/SiliCloudGlobal\"]},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/#\/schema\/person\/f697031891aacefc4b681d139781d3c0\",\"name\":\"William Carter\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/1786698071dd8d74bec894b512f9e3c610c3a2a32985f67e688976cee3c8bbef?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/1786698071dd8d74bec894b512f9e3c610c3a2a32985f67e688976cee3c8bbef?s=96&d=mm&r=g\",\"caption\":\"William Carter\"},\"url\":\"https:\/\/www.silicloud.com\/blog\/author\/williamcarter\/\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"PHP Database Query Examples - Blog - Silicon Cloud","description":"Learn how to use MySQLi and PDO extensions to retrieve database query results in PHP with practical examples.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.silicloud.com\/blog\/how-can-php-retrieve-the-database-query-results-of-a-website\/","og_locale":"en_US","og_type":"article","og_title":"PHP Database Query Examples","og_description":"Learn how to use MySQLi and PDO extensions to retrieve database query results in PHP with practical examples.","og_url":"https:\/\/www.silicloud.com\/blog\/how-can-php-retrieve-the-database-query-results-of-a-website\/","og_site_name":"Blog - Silicon Cloud","article_publisher":"https:\/\/www.facebook.com\/SiliCloudGlobal\/","article_published_time":"2024-03-14T14:19:10+00:00","article_modified_time":"2025-08-04T13:31:01+00:00","author":"William Carter","twitter_card":"summary_large_image","twitter_creator":"@SiliCloudGlobal","twitter_site":"@SiliCloudGlobal","twitter_misc":{"Written by":"William Carter","Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.silicloud.com\/blog\/how-can-php-retrieve-the-database-query-results-of-a-website\/#article","isPartOf":{"@id":"https:\/\/www.silicloud.com\/blog\/how-can-php-retrieve-the-database-query-results-of-a-website\/"},"author":{"name":"William Carter","@id":"https:\/\/www.silicloud.com\/blog\/#\/schema\/person\/f697031891aacefc4b681d139781d3c0"},"headline":"PHP Database Query Examples","datePublished":"2024-03-14T14:19:10+00:00","dateModified":"2025-08-04T13:31:01+00:00","mainEntityOfPage":{"@id":"https:\/\/www.silicloud.com\/blog\/how-can-php-retrieve-the-database-query-results-of-a-website\/"},"wordCount":82,"publisher":{"@id":"https:\/\/www.silicloud.com\/blog\/#organization"},"keywords":["database results","MySQLi","PDO","PHP database","PHP queries"],"inLanguage":"en-US"},{"@type":"WebPage","@id":"https:\/\/www.silicloud.com\/blog\/how-can-php-retrieve-the-database-query-results-of-a-website\/","url":"https:\/\/www.silicloud.com\/blog\/how-can-php-retrieve-the-database-query-results-of-a-website\/","name":"PHP Database Query Examples - Blog - Silicon Cloud","isPartOf":{"@id":"https:\/\/www.silicloud.com\/blog\/#website"},"datePublished":"2024-03-14T14:19:10+00:00","dateModified":"2025-08-04T13:31:01+00:00","description":"Learn how to use MySQLi and PDO extensions to retrieve database query results in PHP with practical examples.","breadcrumb":{"@id":"https:\/\/www.silicloud.com\/blog\/how-can-php-retrieve-the-database-query-results-of-a-website\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.silicloud.com\/blog\/how-can-php-retrieve-the-database-query-results-of-a-website\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.silicloud.com\/blog\/how-can-php-retrieve-the-database-query-results-of-a-website\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.silicloud.com\/blog\/"},{"@type":"ListItem","position":2,"name":"PHP Database Query Examples"}]},{"@type":"WebSite","@id":"https:\/\/www.silicloud.com\/blog\/#website","url":"https:\/\/www.silicloud.com\/blog\/","name":"Silicon Cloud Blog","description":"","publisher":{"@id":"https:\/\/www.silicloud.com\/blog\/#organization"},"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/www.silicloud.com\/blog\/#organization","name":"Silicon Cloud Blog","url":"https:\/\/www.silicloud.com\/blog\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.silicloud.com\/blog\/#\/schema\/logo\/image\/","url":"https:\/\/www.silicloud.com\/blog\/wp-content\/uploads\/2023\/11\/EN-SILICON-Full.png","contentUrl":"https:\/\/www.silicloud.com\/blog\/wp-content\/uploads\/2023\/11\/EN-SILICON-Full.png","width":1024,"height":1024,"caption":"Silicon Cloud Blog"},"image":{"@id":"https:\/\/www.silicloud.com\/blog\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/SiliCloudGlobal\/","https:\/\/twitter.com\/SiliCloudGlobal"]},{"@type":"Person","@id":"https:\/\/www.silicloud.com\/blog\/#\/schema\/person\/f697031891aacefc4b681d139781d3c0","name":"William Carter","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.silicloud.com\/blog\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/1786698071dd8d74bec894b512f9e3c610c3a2a32985f67e688976cee3c8bbef?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/1786698071dd8d74bec894b512f9e3c610c3a2a32985f67e688976cee3c8bbef?s=96&d=mm&r=g","caption":"William Carter"},"url":"https:\/\/www.silicloud.com\/blog\/author\/williamcarter\/"}]}},"_links":{"self":[{"href":"https:\/\/www.silicloud.com\/blog\/wp-json\/wp\/v2\/posts\/11554","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.silicloud.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.silicloud.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.silicloud.com\/blog\/wp-json\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/www.silicloud.com\/blog\/wp-json\/wp\/v2\/comments?post=11554"}],"version-history":[{"count":2,"href":"https:\/\/www.silicloud.com\/blog\/wp-json\/wp\/v2\/posts\/11554\/revisions"}],"predecessor-version":[{"id":155339,"href":"https:\/\/www.silicloud.com\/blog\/wp-json\/wp\/v2\/posts\/11554\/revisions\/155339"}],"wp:attachment":[{"href":"https:\/\/www.silicloud.com\/blog\/wp-json\/wp\/v2\/media?parent=11554"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.silicloud.com\/blog\/wp-json\/wp\/v2\/categories?post=11554"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.silicloud.com\/blog\/wp-json\/wp\/v2\/tags?post=11554"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}