What is the significance of using points before variables in PHP code for string concatenation?

Using points before variables in PHP code for string concatenation is significant because it allows you to concatenate strings with variables. This helps to create dynamic output by inserting variable values into a string. Without using points before variables, PHP will treat the variable as a string literal instead of its value.

// Example of using points before variables for string concatenation
$name = "John";
$age = 30;
echo "My name is " . $name . " and I am " . $age . " years old.";