{"id":8837,"date":"2024-03-14T08:43:45","date_gmt":"2024-03-14T08:43:45","guid":{"rendered":"https:\/\/www.silicloud.com\/blog\/how-to-merge-multiple-data-tables-using-php\/"},"modified":"2025-08-03T10:15:17","modified_gmt":"2025-08-03T10:15:17","slug":"how-to-merge-multiple-data-tables-using-php","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/blog\/how-to-merge-multiple-data-tables-using-php\/","title":{"rendered":"Merge Data Tables in PHP: Quick Guide"},"content":{"rendered":"

To merge multiple data tables, you can follow these steps:<\/p>\n

    \n
  1. Connect to the database: First, use PHP to connect to the database, either through PDO or mysqli.<\/li>\n
  2. Search the database: Search multiple data tables that need to be merged, and retrieve the data from the tables.<\/li>\n
  3. Merge tables: Combine the queried tables into one dataset, using data structures such as arrays in PHP to store the merged data.<\/li>\n
  4. Process data: Manipulate the merged data as necessary, such as sorting, filtering, etc.<\/li>\n<\/ol>\n

    Here is a simple example code:<\/p>\n

    <?php<\/span>\r\n\/\/ \u8fde\u63a5\u6570\u636e\u5e93<\/span>\r\n$servername<\/span> = \"localhost\"<\/span>;\r\n$username<\/span> = \"username\"<\/span>;\r\n$password<\/span> = \"password\"<\/span>;\r\n$dbname<\/span> = \"dbname\"<\/span>;\r\n\r\n$conn<\/span> = new<\/span> mysqli<\/span>($servername<\/span>, $username<\/span>, $password<\/span>, $dbname<\/span>);\r\n\r\n\/\/ \u67e5\u8be2\u6570\u636e\u8868<\/span>\r\n$sql1<\/span> = \"SELECT * FROM table1\"<\/span>;\r\n$result1<\/span> = $conn<\/span>->query<\/span>($sql1<\/span>);\r\n\r\n$sql2<\/span> = \"SELECT * FROM table2\"<\/span>;\r\n$result2<\/span> = $conn<\/span>->query<\/span>($sql2<\/span>);\r\n\r\n\/\/ \u5408\u5e76\u6570\u636e\u8868<\/span>\r\n$data<\/span> = array<\/span>();\r\n\r\nif<\/span> ($result1<\/span>->num_rows > 0<\/span>) {\r\n    while<\/span> ($row<\/span> = $result1<\/span>->fetch_assoc<\/span>()) {\r\n        $data<\/span>[] = $row<\/span>;\r\n    }\r\n}\r\n\r\nif<\/span> ($result2<\/span>->num_rows > 0<\/span>) {\r\n    while<\/span> ($row<\/span> = $result2<\/span>->fetch_assoc<\/span>()) {\r\n        $data<\/span>[] = $row<\/span>;\r\n    }\r\n}\r\n\r\n\/\/ \u5904\u7406\u6570\u636e<\/span>\r\n\/\/ \u5bf9$data\u8fdb\u884c\u6392\u5e8f\u3001\u8fc7\u6ee4\u7b49\u64cd\u4f5c<\/span>\r\n\r\n\/\/ \u8f93\u51fa\u5408\u5e76\u540e\u7684\u6570\u636e<\/span>\r\nprint_r<\/span>($data<\/span>);\r\n\r\n\/\/ \u5173\u95ed\u6570\u636e\u5e93\u8fde\u63a5<\/span>\r\n$conn<\/span>->close<\/span>();\r\n?><\/span>\r\n<\/code><\/pre>\n
    In this example, we start by connecting to the database, then query two data tables, table1 and table2, and combine them into an array $data. Finally, we process and output the merged data. If there are more data tables to merge, you can continue following this procedure.<\/p>\n","protected":false},"excerpt":{"rendered":"
    To merge multiple data tables, you can follow these steps: Connect to the database: First, use PHP to connect to the database, either through PDO or mysqli. Search the database: Search multiple data tables that need to be merged, and retrieve the data from the tables. Merge tables: Combine the queried tables into one dataset, […]<\/p>\n","protected":false},"author":12,"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":[12057,12054,12055,12053,12056],"class_list":["post-8837","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-array-merge-php","tag-mysql-tables-php","tag-pdo-php-tutorial","tag-php-data-merging","tag-php-database-operations"],"yoast_head":"\nMerge Data Tables in PHP: Quick Guide - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"Learn to merge multiple MySQL tables in PHP using PDO\/mysqli. 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