What are the potential pitfalls of using unnecessary quotation marks in PHP variable names?

Using unnecessary quotation marks in PHP variable names can lead to confusion and make the code harder to read and understand. It can also potentially cause syntax errors or unexpected behavior in the code. To avoid these pitfalls, it's best to stick to using valid variable naming conventions without unnecessary quotation marks.

// Incorrect usage of unnecessary quotation marks in variable names
$exampleVar = "value";

// Corrected variable name without unnecessary quotation marks
$exampleVar = "value";