How can syntax errors in PHP code affect the functionality of writing HTML content to a file?

Syntax errors in PHP code can prevent the execution of the code, leading to a failure in writing HTML content to a file. To solve this issue, it is important to carefully review the PHP code for any syntax errors and correct them before attempting to write HTML content to a file.

<?php
// Corrected PHP code snippet with proper syntax
$file = 'output.html';
$content = '<html><body><h1>Hello, World!</h1></body></html>';

// Write HTML content to a file
file_put_contents($file, $content);
?>