In what situations would it be necessary to use htmlspecialchars and stripslashes when passing variables from PHP to HTML?

When passing variables from PHP to HTML, it is necessary to use htmlspecialchars to prevent any malicious scripts from being executed in the HTML output. Additionally, using stripslashes can help prevent any unwanted backslashes from being displayed in the HTML. These functions help sanitize the input and ensure that the data being displayed is safe and properly formatted. 

<?php
// Example of passing a variable from PHP to HTML with htmlspecialchars and stripslashes
$unsafe_variable = "<script>alert('XSS attack');</script>";
$safe_variable = htmlspecialchars(stripslashes($unsafe_variable));
echo "<p>$safe_variable</p>";
?>

Keywords

htmlspecialchars stripslashes variables PHP HTML

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