How can the use of Heredoc syntax affect the implementation of PHP code for generating HTML elements like dropdown lists?

When using Heredoc syntax in PHP to generate HTML elements like dropdown lists, special characters within the Heredoc block can cause parsing issues. To avoid this problem, it's recommended to escape any special characters that may interfere with the Heredoc syntax by using the \ character before them. 

<?php
$options = "<option value='1'>Option 1</option>
<option value='2'>Option 2</option>
<option value='3'>Option 3</option>";

echo <<<HTML
<select>
$options
</select>
HTML;
?>

Keywords

Heredoc syntax PHP code HTML elements dropdown lists implementation

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