How can PHP developers improve the efficiency of their scripts by optimizing the use of single and double quotes in echo statements?

Using single quotes (') instead of double quotes (") in echo statements can improve the efficiency of PHP scripts because PHP does not need to parse variables inside single quotes, resulting in faster execution. By optimizing the use of single and double quotes in echo statements, PHP developers can make their scripts more efficient and improve performance.

// Using single quotes for static strings in echo statements
echo 'Hello, World!';  // Faster execution compared to echo "Hello, World!";