What are the implications of not including a Doctype declaration in HTML when using PHP?

Not including a Doctype declaration in HTML when using PHP can lead to inconsistencies in rendering across different browsers and devices. To ensure proper rendering and compatibility, it is important to include a valid Doctype declaration at the beginning of your HTML document. 

<?php
echo "<!DOCTYPE html>";
echo "<html>";
echo "<head>";
echo "<title>Your Title Here</title>";
echo "</head>";
echo "<body>";
// Your HTML content here
echo "</body>";
echo "</html>";
?>

Keywords

Doctype declaration HTML PHP rendering compatibility

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