What are the potential pitfalls of using curly braces within strings in PHP, as seen in the provided code snippet?

Using curly braces within strings in PHP can lead to potential pitfalls, especially when trying to access array elements or object properties. If not used correctly, PHP may not interpret the curly braces as intended, resulting in syntax errors or unexpected outputs. To solve this issue, it's recommended to use concatenation or double quotes when incorporating variables, array elements, or object properties within strings.

// Example of fixing the issue by using concatenation
$name = "John";
$age = 30;
echo "My name is " . $name . " and I am " . $age . " years old.";

// Example of fixing the issue by using double quotes
$name = "John";
$age = 30;
echo "My name is $name and I am $age years old.";