What are common syntax errors to watch out for when writing PHP code?

One common syntax error in PHP is forgetting to close a statement with a semicolon. Another is mismatched parentheses or brackets. It's also important to watch out for misspelled keywords or function names. To avoid these errors, always double-check your code for proper syntax before running it. Example:

// Incorrect code with missing semicolon
echo "Hello, World"
```

To fix the syntax error, add a semicolon at the end of the statement:
```php
// Corrected code with semicolon added
echo "Hello, World";