How can PHP developers ensure proper syntax when using echo with HTML content?

When using echo to output HTML content in PHP, developers should ensure proper syntax by properly escaping any quotes or special characters within the HTML content. This can be done using functions like htmlspecialchars() to encode special characters. By properly escaping the HTML content, developers can prevent syntax errors and ensure that the output is displayed correctly on the webpage. 

<?php
$html_content = "<h1>Hello, World!</h1>";
echo htmlspecialchars($html_content);
?>

Keywords

PHP echo HTML content syntax validation

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