Are there any potential drawbacks to using the Hungarian notation for variable naming in PHP?

One potential drawback of using Hungarian notation for variable naming in PHP is that it can make the code less readable and harder to maintain, especially for developers who are not familiar with this naming convention. To address this issue, it is recommended to follow PHP's naming conventions, which suggest using descriptive variable names that clearly indicate the purpose of the variable.

// Using descriptive variable names instead of Hungarian notation
$firstName = "John";
$lastName = "Doe";
$age = 30;

echo "Name: " . $firstName . " " . $lastName . ", Age: " . $age;