Added codes and softcopy.

2025-06-11 14:19:19 +05:30
parent 091a580a74
commit 7df8927c43
32 changed files with 446 additions and 0 deletions
@@ -0,0 +1,89 @@
+<?php
+// Database configuration
+$host = 'localhost'; // MySQL server host
+$dbname = 'connectivityDB'; // Database name
+$username = 'kshitij'; // MySQL username
+$password = 'Pass@123'; // MySQL password
+
+try {
+    // Create a connection
+    $conn = new mysqli($host, $username, $password, $dbname);
+
+    // Check the connection
+    if ($conn->connect_error) {
+        throw new Exception("Connection failed: " . $conn->connect_error);
+    }
+    echo "Connected successfully<br>";
+
+    // CRUD Operations
+
+    // Create
+    function createUser($conn, $name, $email) {
+        $stmt = $conn->prepare("INSERT INTO users (name, email) VALUES (?, ?)");
+        $stmt->bind_param("ss", $name, $email);
+        if ($stmt->execute()) {
+            echo "New user created successfully<br>";
+        } else {
+            echo "Error: " . $stmt->error . "<br>";
+        }
+        $stmt->close();
+    }
+
+    // Read
+    function readUsers($conn) {
+        $result = $conn->query("SELECT * FROM users");
+        if ($result->num_rows > 0) {
+            while ($row = $result->fetch_assoc()) {
+                echo "ID: " . $row["id"] . " - Name: " . $row["name"] . " - Email: " . $row["email"] . "<br>";
+            }
+        } else {
+            echo "No users found.<br>";
+        }
+    }
+
+    // Update
+    function updateUser($conn, $id, $name, $email) {
+        $stmt = $conn->prepare("UPDATE users SET name = ?, email = ? WHERE id = ?");
+        $stmt->bind_param("ssi", $name, $email, $id);
+        if ($stmt->execute()) {
+            echo "User updated successfully<br>";
+        } else {
+            echo "Error: " . $stmt->error . "<br>";
+        }
+        $stmt->close();
+    }
+
+    // Delete
+    function deleteUser($conn, $id) {
+        $stmt = $conn->prepare("DELETE FROM users WHERE id = ?");
+        $stmt->bind_param("i", $id);
+        if ($stmt->execute()) {
+            echo "User deleted successfully<br>";
+        } else {
+            echo "Error: " . $stmt->error . "<br>";
+        }
+        $stmt->close();
+    }
+
+    // Example usage of CRUD operations
+    createUser($conn, "John Doe", "john@example.com");
+    createUser($conn, "Jane Smith", "jane@example.com");
+    echo "<br>All Users:<br>";
+    readUsers($conn);
+    updateUser($conn, 1, "John Updated", "john.updated@example.com"); // Update user with ID 1
+    echo "<br>All Users after update:<br>";
+    readUsers($conn);
+    deleteUser($conn, 2); // Delete user with ID 2
+    echo "<br>All Users after deletion:<br>";
+    readUsers($conn);
+
+} catch (Exception $e) {
+    echo "Error: " . $e->getMessage();
+} finally {
+    // Close the connection
+    if (isset($conn)) {
+        $conn->close();
+    }
+}
+?>
+