zigo928

<?php  
$str = "!@#$%^&*（中'文：；﹑•中'文中'文().,<>|[]'\""; 
 
//中文标点
$char = "。、！？：；﹑•＂…‘’“”〝〞∕¦‖—　〈〉﹞﹝「」‹›〖〗】【»«』『〕〔》《﹐¸﹕︰﹔！¡？¿﹖﹌﹏﹋＇´ˊˋ―﹫︳︴¯＿￣﹢﹦﹤‐­˜﹟﹩﹠﹪﹡﹨﹍﹉﹎﹊ˇ︵︶︷︸︹︿﹀︺︽︾ˉ﹁﹂﹃﹄︻︼（）";
 
$pattern = array(
    "/[[:punct:]]/i", //英文标点符号
    '/['.$char.']/u', //中文标点符号
    '/[ ]{2,}/'

zigo928

<?php
function my_mb_strlen($value) 
{
    // 计算单字节.
    preg_match_all('/[a-zA-Z0-9_]/', $value, $single);
    $single = count($single[0]) / 2;

    // 多子节长度.
    $double = str_word_count(preg_replace('([a-zA-Z0-9_])', '', $value));

zigo928

1 普通匹配，遵循最长匹配规则，假设一个请求匹配到了两个普通规则，则选择匹配长度大的那个
  例如： 
  location /{
    [matches]
  }
  location /test{
    [matches]
  }
2 精确匹配
  location = /{

zigo928

<?php
/**
 * Flexihash - A simple consistent hashing implementation for PHP.
 * 
 * The MIT License
 * 
 * Copyright (c) 2008 Paul Annesley
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal

zigo928

<?php
/**
 * 二分查找
 * 
 * @param $a array
 * @param $v 查找的值
 * 
 * @return int 
 */
function binarySearch($a, $v)

zigo928

<?php
function longestCommonSequence($str_a, $str_b)
{
    assert("is_string('$str_a')");
    assert("is_string('$str_b')");
    
    $str_a_len = strlen($str_a);
    $str_b_len = strlen($str_b);
    
    $opt = array_fill(0, $str_a_len + 1, array_fill(0, $str_b_len + 1, 0));

zigo928

<?php

function isPrime($num) 
{
    //1 is not prime. See: http://en.wikipedia.org/wiki/Prime_number#Primality_of_one
    if($num == 1)
        return false;

    //2 is prime (the only even number that is prime)
    if($num == 2)

zigo928

<?php
function longest_common_substring($words)
{
  $words = array_map('strtolower', array_map('trim', $words));
  $sort_by_strlen = create_function('$a, $b', 'if (strlen($a) == strlen($b)) { return strcmp($a, $b); } return (strlen($a) < strlen($b)) ? -1 : 1;');
  usort($words, $sort_by_strlen);
  // We have to assume that each string has something in common with the first
  // string (post sort), we just need to figure out what the longest common
  // string is. If any string DOES NOT have something in common with the first
  // string, return false.

zigo928

<?php

function maxDivisor($a, $b)
{
    if (! $a || !$b) {
        return false;
    }
    
    if ($b > $a) {
        list($a, $b) = array($b, $a);

zigo928

<?php
function longestCommonSubstring($str_a, $str_b, $case_sensitive = false)
{
    $len_a = mb_strlen($str_a);
    $len_b = mb_strlen($str_b);
    
    if (! $len_a || ! $len_b) {
        return false;
    }