How can PHP be used to filter out inappropriate words or content in form submissions?

To filter out inappropriate words or content in form submissions using PHP, you can create an array of inappropriate words and then use PHP functions like `str_replace` or `preg_replace` to replace those words with a suitable replacement or remove them altogether. 

// List of inappropriate words
$inappropriateWords = array("badword1", "badword2", "badword3");

// Get the form submission data
$formInput = $_POST['form_input'];

// Filter out inappropriate words
$filteredInput = str_ireplace($inappropriateWords, "***", $formInput);

// Use the filtered input for further processing
// For example, save it to a database or display it on a webpage

Keywords

PHP filter_var preg_replace profanity filter content moderation

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