Add PHP/MySQL/PhpMyAdmin docker-compose

Signed-off-by: Alireza Far <imail01999@gmail.com>

php-mysql-apache/php/Dockerfile

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+FROM php:8.0-apache
+
+COPY . /var/www/html
+
+EXPOSE 80

php-mysql-apache/php/index.php

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+<?php
+
+
+/**
+ * This is a sample code to show you how Docker containers work together.
+ * DO NOT USE this source and pattern in production.
+ * 
+ * 
+ * You can see the result by going to `localhost:8000`.
+ * 8000-8080: 
+ *      Host Apache port to run PHP index.php inside /var/www/html in the container.
+ * 8001 : Refers to 3306 & 33060 of the MySQL port in the container
+ * 8003 : Refers to 80 of the PhpMyAdmin [user=root, no password]
+ * 
+ */
+
+require_once "query.php";
+
+
+/**
+ * IP of MySQL
+ * We can add specific IPs in docker-compose.yaml file for each service(container)
+ */
+$mysqlHost = "172.17.0.3";
+
+run_MySQL_queries($mysqlHost);

php-mysql-apache/php/query.php

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+<?php
+
+function run_MySQL_queries($mysqlHost)
+{
+    /**
+     * Connect to MySQL via PDO
+     * 
+     * PDO modules must be installed before using, moduels' name:
+     *  pdo pdo_mysql
+     */
+    $pdo = new PDO("mysql:host=$mysqlHost", "root", "");
+
+    $pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
+
+
+
+
+    /**
+     * Create a new database called `MyDatabase` if does not exist
+     */
+    $pdo->exec("CREATE DATABASE IF NOT EXISTS MyDatabase");
+
+
+
+
+    /**
+     * Use the database we created
+     */
+    $pdo->exec("USE MyDatabase");
+
+
+
+
+    /**
+     * Check if the `test` table exists before
+     * If not, creates a new one
+     */
+    $stmt = $pdo->prepare("SHOW TABLES LIKE 'test'");
+    $stmt->execute();
+
+    if ($stmt->rowCount() == 0) {
+        $stmt = $pdo->prepare("CREATE TABLE test (column1 VARCHAR (255) )");
+        $stmt->execute();
+    }
+
+
+
+
+    /**
+     * Insert a sample data `Hello world` into table
+     */
+    $stmt = $pdo->prepare("INSERT INTO test (column1) VALUES ('Hello world')");
+    $stmt->execute();
+
+    
+
+
+    /**
+     * Fetch the data we inserted
+     */
+    $stmt = $pdo->prepare("SELECT * FROM test LIMIT 1");
+    $stmt->execute();
+
+    $result = $stmt->fetchAll(PDO::FETCH_ASSOC);
+
+
+
+
+    /**
+     * Show the data as string
+     */
+    echo $result[0]['column1'];
+}