CREATING A FUNCTION TO DISPLAY MASKED NUMBER

To mask part of the number, I will create a function for that purpose.

<?phpfunction maskPhoneNumber($number){
    
    $mask_number =  str_repeat("*", strlen($number)-4) . substr($number, -4);
    
    return $mask_number;
}echo maskPhoneNumber('08066417364');?>

This function will output

*******7364