How can variable interpolation be improved in the provided PHP code snippet to enhance readability and maintainability?

Variable interpolation can be improved in the provided PHP code snippet by using double quotes instead of single quotes when defining the strings that contain variables. This allows for the variables to be directly interpolated within the strings without the need for concatenation. By using double quotes, the code becomes more readable and maintainable as it clearly shows where the variables are being inserted into the strings. 

// Original code snippet
$name = 'John';
$age = 30;

// Using single quotes
echo 'Hello, my name is ' . $name . ' and I am ' . $age . ' years old.';

// Improved code snippet
echo "Hello, my name is $name and I am $age years old.";

Keywords

variable interpolation PHP code snippet readability maintainability improvement

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