What are common mistakes to avoid when integrating the tinyMCE editor with PHP forms?

One common mistake to avoid when integrating the tinyMCE editor with PHP forms is not properly handling the content submitted by the editor. To solve this issue, you should use the htmlspecialchars function in PHP to escape special characters and prevent potential security vulnerabilities.

// Retrieve the content submitted by the tinyMCE editor
$content = htmlspecialchars($_POST['editor_content']);

// Use the escaped content in your PHP code
echo "Submitted content: " . $content;