Convert last name to ****

[rsbypi4]

<?php
$name = $row->Full_name; //----Let say the data from DB and the value is JOHN CENA.

// Now the output is look like this this.,

echo " JOHN ****"; //--------expectation, it display the first name but the last name it well *****.


?>
    
// I have some research in internet but some code not working properly.,

 

[rsbypi4]

<?php
$name = $row->Full_name; //----Let say the data from DB and the value is JOHN CENA.

// Now the output is look like this this.,

echo " JOHN ****"; //--------expectation, it display the first name but the last name it well *****.


?>
   
// I have some research in internet but some code not working properly.,

Good day everyone., I already solve this problem.,
I use

str_pad($strtok_str , 10, "*");

to solve this problem