What best practices should be followed when naming variables in PHP to avoid errors like the one mentioned in the forum thread?

When naming variables in PHP, it is important to follow best practices to avoid errors like the one mentioned in the forum thread. Variable names should be descriptive, concise, and follow a consistent naming convention such as camelCase or snake_case. Avoid using reserved words or special characters in variable names to prevent conflicts with PHP syntax. Additionally, variables should be named in a way that clearly indicates their purpose or value to improve code readability and maintainability.

// Incorrect variable naming causing error
$1stNumber = 10;
$2ndNumber = 20;
$total = $1stNumber + $2ndNumber;

// Correct variable naming following best practices
$firstNumber = 10;
$secondNumber = 20;
$total = $firstNumber + $secondNumber;