What common syntax errors in PHP code can lead to parse errors like the one mentioned in the forum thread?

Common syntax errors in PHP code that can lead to parse errors include missing semicolons at the end of lines, mismatched parentheses or curly braces, and missing or extra quotation marks. To solve this issue, carefully review the code for any syntax errors and make sure all opening brackets have corresponding closing brackets. Example fix:

<?php
// Incorrect code with a missing closing parenthesis
if ($condition {
    echo "Condition is true";
}
?>
```

```php
<?php
// Corrected code with the missing closing parenthesis added
if ($condition) {
    echo "Condition is true";
}
?>