29Jan/100
Python x PHP: Finding IPs with regex
Sometimes I just like to write code in Python and PHP to compare them, and admire both...
Here's a little code to find IP adressess inside strings (returned from a nslookup). The code is not optimal, but illustrate how both languages works. Just for some friday fun...
Python
Python 2.6.1 (r261:67515, Jul 7 2009, 23:51:51) [GCC 4.2.1 (Apple Inc. build 5646)] on darwin Type "help", "copyright", "credits" or "license" for more information. >>> a = 'yahoo.com IN A 69.147.114.224 18774s (05:12:54)' >>> a += 'yahoo.com IN A 209.131.36.159 18774s (05:12:54)' >>> a += 'yahoo.com IN A 209.191.93.53 18774s (05:12:54)' >>> print a 'yahoo.com IN A 69.147.114.224 18774s (05:12:54)yahoo.com IN A 209.131.36.159 18774s (05:12:54)yahoo.com IN A 209.191.93.53 18774s (05:12:54)' >>>; import re >>> p = re.compile('(?:\d{1,3}\.){3}\d{1,3}') >>>; p.findall(a) ['69.147.114.224', '209.131.36.159', '209.191.93.53'] >>>
PHP
$a = 'yahoo.com IN A 69.147.114.224 18774s (05:12:54)'; $a .= 'yahoo.com IN A 209.131.36.159 18774s (05:12:54)'; $a .= 'yahoo.com IN A 209.191.93.53 18774s (05:12:54)'; print $a; /* saida: yahoo.com IN A 69.147.114.224 18774s (05:12:54)yahoo.com IN A 209.131.36.159 18774s (05:12:54)yahoo.com IN A 209.191.93.53 18774s (05:12:54) */ $re = '/(\d+).(\d+).(\d+).(\d+)/'; preg_match_all($re, $a, $matches); var_dump($matches[0]); // saida 1 var_dump($matches); // saida 2 /* saida 1: array(3) { [0]=> string(14) "69.147.114.224" [1]=> string(14) "209.131.36.159" [2]=> string(13) "209.191.93.53" } saida 2: array(5) { [0]=> array(3) { [0]=> string(14) "69.147.114.224" [1]=> string(14) "209.131.36.159" [2]=> string(13) "209.191.93.53" } [1]=> array(3) { [0]=> string(2) "69" [1]=> string(3) "209" [2]=> string(3) "209" } [2]=> array(3) { [0]=> string(3) "147" [1]=> string(3) "131" [2]=> string(3) "191" } [3]=> array(3) { [0]=> string(3) "114" [1]=> string(2) "36" [2]=> string(2) "93" } [4]=> array(3) { [0]=> string(3) "224" [1]=> string(3) "159" [2]=> string(2) "53" } } */