What are common syntax errors to avoid when working with templates in PHP?

Common syntax errors to avoid when working with templates in PHP include forgetting to close PHP tags within the template file, using incorrect variable names or not properly escaping output. To avoid these errors, make sure to properly close PHP tags, use correct variable names, and escape output using functions like htmlspecialchars(). Example:

<!-- Incorrect way to output variable in template -->
<h1>Welcome, <?php echo $name</h1>

<!-- Correct way to output variable in template -->
<h1>Welcome, <?php echo htmlspecialchars($name); ?></h1>