{"id":28988329,"url":"https://github.com/volkansah/external-db-dummy-plugin-for-wordpress","last_synced_at":"2026-04-25T08:38:20.403Z","repository":{"id":296287198,"uuid":"992878546","full_name":"VolkanSah/External-DB-Dummy-Plugin-for-WordPress","owner":"VolkanSah","description":"This repo demonstrates how to connect a WordPress plugin to one or more external databases, using basic hardcoded connection pooling logic (no GUI, no config 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External DB Dummy Plugin for WordPress\nThis repo demonstrates how to connect a WordPress plugin to one or more **external databases**, using basic hardcoded connection pooling logic (no GUI, no config screen).\n\n## 🧠 Idea\n\n- WordPress core continues to use its **main database (DB1)**  \n- This plugin connects to an **external database (DB2)** with custom logic  \n- Heavy plugin data (e.g. products, prices, logs, etc.) can be stored outside of the main WP database  \n- Helps reduce **bloat and performance load** on the main WordPress database  \n\n### 💡 Example Use Case\n\nImagine you're building a large plugin like a shop, a CRM, or a directory.  \nInstead of dumping thousands of rows into `wp_postmeta`, your plugin uses a separate database.\n\nThis project shows **how to do that with a minimal setup**.\n\n### 📦 Idea Example\n\nUnder the folder `the-idea/` you will find this hardcoded example:\n\n```\n\nExternal-DB-Dummy-Plugin-for-WordPress/\n└── the-idea/\n    ├── plugin-core.php      ← Simple example plugin file\n    ├── db-config.php        ← Hardcoded DB hosts + weights\n    └── external-db.php      ← Connection pooling logic\n\n````\n\n\n### 🔧 `db-config.php`\n\n```php\n\u003c?php\n// Hardcoded database pool (can be extended later)\nreturn [\n    'mydb1' =\u003e ['host' =\u003e '127.0.0.1', 'user' =\u003e 'user1', 'pass' =\u003e 'pw1', 'db' =\u003e 'plugin_db_1', 'weight' =\u003e 2],\n    'mydb2' =\u003e ['host' =\u003e '127.0.0.2', 'user' =\u003e 'user2', 'pass' =\u003e 'pw2', 'db' =\u003e 'plugin_db_2', 'weight' =\u003e 1],\n];\n````\n\n\n### 🔌 `external-db.php`\n\n```php\n\u003c?php\n\nfunction get_external_db_connection() {\n    $configs = require __DIR__ . '/db-config.php';\n\n    // Basic weight-based connection selection (manual pool)\n    $pool = [];\n    foreach ($configs as $key =\u003e $cfg) {\n        for ($i = 0; $i \u003c $cfg['weight']; $i++) {\n            $pool[] = $cfg;\n        }\n    }\n\n    $selected = $pool[array_rand($pool)];\n\n    $mysqli = new mysqli($selected['host'], $selected['user'], $selected['pass'], $selected['db']);\n\n    if ($mysqli-\u003econnect_error) {\n        error_log(\"External DB connection failed: \" . $mysqli-\u003econnect_error);\n        return null;\n    }\n\n    return $mysqli;\n}\n```\n\n\n### 🔌 `plugin-core.php`\n\n```php\n\u003c?php\n/**\n * Plugin Name: External DB Dummy Plugin\n * Description: A simple plugin that connects to an external DB with manual connection pooling (no GUI).\n * Version: 0.1\n * Author: Als Batman :D\n */\n\nrequire_once __DIR__ . '/external-db.php';\n\nadd_action('admin_notices', function () {\n    $conn = get_external_db_connection();\n    if (!$conn) {\n        echo \"\u003cdiv class='notice notice-error'\u003e\u003cp\u003eExternal DB connection failed.\u003c/p\u003e\u003c/div\u003e\";\n        return;\n    }\n\n    $result = $conn-\u003equery(\"SELECT * FROM products LIMIT 5\");\n    echo \"\u003cdiv class='notice notice-success'\u003e\u003cp\u003eExternal DB connected. Found \" . $result-\u003enum_rows . \" products.\u003c/p\u003e\u003c/div\u003e\";\n});\n```\n\n### 📁 Examples \nIn the [/examples/](https://github.com/VolkanSah/External-DB-Dummy-Plugin-for-WordPress/tree/main/examples) folder you can find a simple directory plugin that uses a second database.\n\n\n### 📌 Notes\n\n* This plugin does **not** use `$wpdb`\n* No options or settings in WordPress\n* Pure PHP + `mysqli`\n* Connection pooling is simulated with a weighted array\n\n\n### 🔐 Requirements\n\n* PHP 7.4+\n* `mysqli` extension enabled\n* WordPress 5.0+\n* External databases accessible from the WordPress host\n\n\nCreated by thought. Readme written by OpenAI's GPT. Heartbeat and code by a human soul.\n\n---\n\nMade by **VolkanSah \\:D** – Giving WordPress plugins their own brains.\n\"Between madness and genius lies a README.md.\"\n\n\n\n\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fvolkansah%2Fexternal-db-dummy-plugin-for-wordpress","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fvolkansah%2Fexternal-db-dummy-plugin-for-wordpress","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fvolkansah%2Fexternal-db-dummy-plugin-for-wordpress/lists"}