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@ 2018-06-15T11:32:18Z

<?php

function asterisk($password)
{
    $count = min(strlen($password), 4);
    $passwordAsterisk = str_repeat('*', $count) . substr($password, $count);
    
    echo $password . ' => ' . $passwordAsterisk . PHP_EOL;

    return $passwordAsterisk;
}

asterisk('abcdef');
asterisk('abc');
asterisk('');

Output
Performance
VLD
References
Branches

Generated using Vulcan Logic Dumper, using php 8.0.0

preferences:dark modelive previewkey bindings

41.34 ms | 1408 KiB | 4 Q