What potential issue could arise from not checking for errors in the PHP code?

If errors in PHP code are not checked, it can lead to unexpected behavior, security vulnerabilities, and potential crashes of the application. To solve this issue, it is important to implement error handling mechanisms such as try-catch blocks to catch and handle any exceptions that may occur during the execution of the code.

try {
    // PHP code that may throw an error
} catch (Exception $e) {
    echo 'An error occurred: ' . $e->getMessage();
}