What is the common issue with deleting a user from a table using a link in PHP?

The common issue with deleting a user from a table using a link in PHP is that the deletion operation should be handled securely to prevent unauthorized deletion or malicious attacks. One way to solve this issue is by using a POST request instead of a GET request for the deletion action. This helps in preventing accidental deletion when a user clicks on a link. 

<?php
if ($_SERVER["REQUEST_METHOD"] == "POST" && isset($_POST['delete_user'])) {
    // Perform deletion operation securely
    $user_id = $_POST['user_id'];
    // Code to delete user from the table
}

// Link to delete user
echo "<form method='post'>";
echo "<input type='hidden' name='user_id' value='123'>";
echo "<input type='submit' name='delete_user' value='Delete User'>";
echo "</form>";
?>

Keywords

SQL injection DELETE query user deletion security vulnerability data validation

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