How can code highlighting issues indicate potential errors in PHP code?

Code highlighting issues in PHP can indicate potential errors by pointing out syntax errors, missing semicolons, incorrect variable names, or unmatched quotes. These issues can prevent the code from running properly and may lead to unexpected behavior or errors. To resolve these problems, carefully review the highlighted areas in the code editor and make the necessary corrections to ensure proper syntax and variable naming conventions are followed.

// Incorrect variable name
$my_variable = "Hello World";

// Corrected variable name
$myVariable = "Hello World";