This helper helps to remove email & phone number from string/text.

remove_email_and_phone_number_from_string.php

<?php

function removeEmailAndPhoneFromString($string) {
    // remove email
    $string = preg_replace('/([a-zA-Z0-9_\-\.]+)@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.)|(([a-zA-Z0-9\-]+\.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\]?)/', '*****', $string);

    // remove phone
    $string = preg_replace('/([0-9]+[\- ]?[0-9]+){4,}/', '*****', $string);

    return $string;
}