What are some common pitfalls related to case sensitivity in PHP variable names?

Case sensitivity in PHP variable names can lead to errors when trying to access variables with different casing than originally declared. To avoid this issue, it is recommended to maintain consistent casing throughout the codebase. One common pitfall is mistakenly trying to access a variable with incorrect casing, resulting in undefined variable errors or unexpected behavior.

// Incorrect usage of case sensitivity in variable names
$myVariable = "Hello";
echo $MyVariable; // This will result in an error as the variable name is case-sensitive

// Correct usage of consistent casing in variable names
$myVariable = "Hello";
echo $myVariable; // This will output "Hello" correctly