How can syntax errors like unexpected T_VARIABLE be prevented in PHP code?

To prevent syntax errors like unexpected T_VARIABLE in PHP code, make sure to properly close statements with semicolons, use correct variable naming conventions, and check for typos or missing parentheses. Additionally, using an IDE or code editor with syntax highlighting can help catch these errors before running the code.

// Incorrect code snippet with unexpected T_VARIABLE error
$variable = "Hello"
echo $variable;
```

```php
// Corrected code snippet with proper semicolon usage
$variable = "Hello";
echo $variable;