What is the syntax error in the provided PHP code?

The syntax error in the provided PHP code is the missing semicolon at the end of the echo statement. In PHP, statements must end with a semicolon to indicate the end of the line. To fix this error, simply add a semicolon at the end of the echo statement.

// Incorrect code
echo "Hello, World!"
```

```php
// Corrected code
echo "Hello, World!";