How can output buffer control functions be utilized effectively in PHP?

Output buffer control functions in PHP can be utilized effectively to capture, manipulate, and modify the output before it is sent to the browser. This can be useful in scenarios where you need to modify the content of the output dynamically or prevent certain content from being displayed. By using functions like ob_start(), ob_get_contents(), and ob_end_clean(), you can control the output buffer and manipulate the output as needed.

// Start output buffering
ob_start();

// Output some content
echo "Hello, World!";

// Get the content of the output buffer
$output = ob_get_contents();

// Modify the content
$output = str_replace("World", "PHP", $output);

// Clean the output buffer
ob_end_clean();

// Output the modified content
echo $output;