- substr: documentation ( source)
- sha1: documentation ( source)
- str_replace: documentation ( source)
- md5: documentation ( source)
<?php
echo $siteAdi = "siteadi.com";
echo "<br>";
$siteAdi = str_replace( 'www.', '', $siteAdi );
$a = md5( sha1( md5( $siteAdi ) ) );
$b = sha1( md5( sha1( $siteAdi ) ) );
$c = sha1( $a . $b );
echo $sonuc = substr( $c, 0, 4 ) . '.' . substr( $c, 8, 4 ) . '.' . substr( $c, 16, 4 ) . '.' . substr( $c, 24, 4 );
?>