What are common syntax errors in PHP that can lead to a "Parse error: syntax error, unexpected $end" message?

The "Parse error: syntax error, unexpected $end" message in PHP typically occurs when there is a missing closing brace or parenthesis in the code. This means that the PHP parser reached the end of the file before finding the expected closing symbol. To solve this issue, carefully check your code for missing braces or parentheses and make sure all opening symbols have corresponding closing symbols.

// Incorrect code with missing closing brace
if ($condition) {
    echo "Condition met!";
// Missing closing brace for the if statement
```

```php
// Corrected code with closing brace added
if ($condition) {
    echo "Condition met!";
}