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<?php | |
# PHP does not recognize long int. | |
# It recognize only signed int32. | |
var_dump(is_float(pow(2,30))); # false | |
var_dump(is_float(pow(2,31))); # true (sic!) | |
# Even if PHP keep long int internaly as floats, | |
# it displays them in inconsistent way: |
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<?php | |
# What is more readible? | |
# version 1: | |
$args[] = '"'.mysql_escape_string(preg_replace("/^'(\d+)$/", '$1', $arg)).'"'; | |
# version 2: | |
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Response for http://tempe.st/2007/05/the-battle-of-the-languages-part-ii/comment-page-1 | |
Platform: MacPro 2 x Xeon 2.8GHz, MAac OS-X 10.6.2, Java 1.6.0_17 | |
Lua 5.1.4 = 1.89 s. | |
JRuby 1.4 (--fast --server) = 4.53 s. | |
Python 2.6.4 = 5.61 s. | |
Python 3.1 = 6.15 s. | |
MacRuby 0.5 = 6.62 s. | |
Ruby 1.9.1p373 = 10.37 s. |
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<?php | |
class Source {} | |
class DbSource extends Source { | |
function __construct($cfg) { | |
$this->conn = new PDO($cfg['adapter'].":dbname=".$cfg['db'].";host=".$cfg['host'], $cfg['user'], $cfg['password']); | |
} | |
// Mapping properties - db_columns | |
private function property_names() { | |
$result = array(); |
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MacBook Pro, Core Duo 2, 2.8GHz | |
Mac OS-X 10.6.5 | |
$ cat fib.rb | |
def fib(n) | |
return n if n <= 1 | |
fib(n - 1) + fib(n - 2) | |
end | |
require "benchmark" | |
Benchmark.bm do |make| |
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Złożoność jezyka | |
Ansi C: http://flickr.com/photos/nicksieger/281055530/ | |
Ruby: http://flickr.com/photos/nicksieger/280661836/in/photostream/ | |
Python: http://flickr.com/photos/nicksieger/281055485/ | |
JavaScript: http://flickr.com/photos/nicksieger/280662871/in/photostream/ | |
Java: http://flickr.com/photos/nicksieger/280662707/in/photostream/ | |
Diassemblacja kodu |
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# z wątku http://www.rubyonrails.pl/forum/t112-Zamiana-pojedynczych-znakow | |
require 'iconv' | |
def pl2ascii(s) | |
ascii = "acelnoszzACELNOSZZ" | |
cep = "\271\346\352\263\361\363\234\277\237\245\306\312\243\321\323\214\257\217" | |
s = Iconv.new("cp1250", "UTF-8").iconv(s) | |
s.tr!(cep,ascii) | |
end |
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# Pythonic Unicode support | |
import re | |
pattern = re.compile(r'(\w+)', re.U|re.I) | |
msg = unicode('zażółć gęślą jaźń', 'utf-8') | |
for word in re.findall(pattern, msg): | |
print '#', word | |
# zażółć | |
# gęślą |
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#!ruby19 | |
# encoding: utf-8 | |
alias :λ :lambda | |
π = Math::PI | |
hello_world = λ{|subject| "Hello, #{subject}! π is #{π}"} | |
puts hello_world["world"] # => Hello, world! π is 3.14159265358979 | |
puts "λπ".length # => 2 |
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Dynamic accessors | |
<?php | |
error_reporting(E_ALL); | |
class String { | |
static public function capitalize($s) { | |
if (!empty($s)) return $s = strtoupper($s[0]).strtolower(substr($s,1)); | |
return $s; |
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