What common syntax errors should PHP beginners be aware of when writing scripts?

One common syntax error that PHP beginners should be aware of is missing semicolons at the end of statements. Semicolons are used to indicate the end of a statement in PHP, so forgetting to include them can lead to syntax errors. Another common mistake is using curly braces incorrectly, such as forgetting to close them or using them in the wrong place. Lastly, mixing up single and double quotes can also cause syntax errors in PHP scripts. Example:

// Missing semicolon at the end of the statement
$name = "John"
echo "Hello, $name!";
```

To fix the issue, simply add a semicolon at the end of the statement:
```php
$name = "John";
echo "Hello, $name!";