전화번호 수집 방지

telgen.php

<?php

$digitTable = array(
    0 => array('０', '○', 'О'),
    1 => array('① ', '⑴ ', '１'),
    2 => array('② ', '⑵ ', '２'),
    3 => array('③ ', '⑶ ', '３'),
    4 => array('④ ', '⑷ ', '４'),
    5 => array('⑤ ', '⑸ ', '５'),
    6 => array('⑥ ', '⑹ ', '６'),
    7 => array('⑦ ', '⑺ ', '７'),
    8 => array('⑧ ', '⑻ ', '８'),
    9 => array('⑨ ', '⑼ ', '９'),
);

if (isset($argv[1]) == false) {
    echo "Usage: {$argv[0]} <STRING>".PHP_EOL;
    exit(1);
}

foreach (preg_split('//u', $argv[1]) as $ch) {
    if (preg_match('/^\d$/', $ch)) {
        echo $digitTable[intval($ch)][rand(0, count($digitTable[intval($ch)]) - 1)];
    } else {
        echo $ch;
    }
}
echo PHP_EOL;

?>