Hide numbers of a phone number

Question

How can I show and hide the some numbers of a phone number by replacing it with * like 0935***3256 by PHP?

EX:

09350943256 -> 0935***3256
09119822432 -> 0911***2432
09215421597 -> 0921***1597
...

---

$number = '09350943256';
echo str_pad(substr($number, -4), strlen($number), '*', STR_PAD_LEFT);

Top php code result is as: *******3256 but i want result as: 0935***3256

How is it?

Answer 1

You could use substr and concat this way

to work for any $number with any number of n digit length

 <?php

     $number = "112222";
     $middle_string ="";
     $length = strlen($number);

     if( $length < 3 ){

       echo $length == 1 ? "*" : "*". substr($number,  - 1);

     }
     else{
        $part_size = floor( $length / 3 ) ; 
        $middle_part_size = $length - ( $part_size * 2 );
        for( $i=0; $i < $middle_part_size ; $i ++ ){
           $middle_string .= "*";
        }

        echo  substr($number, 0, $part_size ) . $middle_string  . substr($number,  - $part_size );
     }

The output if you make $number = "1" is * and if $number = "12" is *2 and for $number = "112222" is 11**22. and it goes on.

Answer 2

In short:

$phone = 01133597084;
$maskedPhone = substr($phone, 0, 4) . "****" . substr($phone, 7, 4);

// Output: 0113****7084