What are the differences between server-side and client-side processing in PHP?

Server-side processing refers to the execution of scripts on the server before sending the processed data to the client, while client-side processing involves executing scripts on the client's browser. Server-side processing is typically used for tasks that require access to databases or server resources, while client-side processing is used for tasks that can be handled locally by the browser. Example PHP code snippet for server-side processing: 

<?php
// Server-side processing example
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "myDB";

// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);

// Check connection
if ($conn->connect_error) {
  die("Connection failed: " . $conn->connect_error);
}

// Perform SQL query
$sql = "SELECT * FROM users";
$result = $conn->query($sql);

// Process and display data
if ($result->num_rows > 0) {
  while($row = $result->fetch_assoc()) {
    echo "Name: " . $row["name"]. " - Email: " . $row["email"]. "<br>";
  }
} else {
  echo "0 results";
}

// Close connection
$conn->close();
?>
```

Example PHP code snippet for client-side processing:
```php
<!DOCTYPE html>
<html>
<body>

<h2>Client-side processing example</h2>

<p id="demo"></p>

<script>
// Client-side processing example
var name = "John Doe";
document.getElementById("demo").innerHTML = "Hello, " + name + "!";
</script>

</body>
</html>

Keywords

Server-side processing client-side processing PHP AJAX JavaScript

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