php 二维数组的分组排序实现代码

<?php
$new2['group']['key']='time';
$new['aa']['b']=44;
$new['aa']['c']=33;
$new['aa']['d']=34;
$new['bb']['b']=55;
$new['bb']['c']=32;
$new['cc']['4']=77;
$new['dd']['g']=55;
$new['dd']['c']=54;

function arr_group_sort($new){
     foreach($new as $key=>$val){
          asort($new[$key]);//分别对每一组的数据进行排序；
          $tmp=$new[$key];//将排序后的数据赋值给一个临时数组；
          $tmp[]=$key;//将原来数组的键值加入到临时数组的末尾，为后期的修改键值的步骤做准备；
          $a=array_shift($new[$key]);//将每一组的第一项（最小项）数据取出来，以aa组为例子，$a此时的值就为33；
          $aa[$a]=$tmp;//新建一个数组，以$aa(比如33)为键值；
          ksort($aa);//按照键值排序
     }
     foreach($aa as $key=>$val){//按照键值排序的数组，已经失去了原来的键值，比如aa/bb/cc/dd之类的，好在我们之前已经将键值存入了临时数组的末尾；
          $b=array_pop($aa[$key]);//将键值取出来；
          $bb[$b]=$aa[$key];//从新建立一个数组，使用之前的键值（aa/bb/cc）
     }
     return $bb;//返回
}

$c=arr_group_sort($new);
print_r($new);//原数组；
print_r($c);//分组排序后的数组；
?>

$array = array(
 array('name'=>'手机','brand'=>'诺基亚','price'=>1050),
 array('name'=>'笔记本电脑','brand'=>'lenovo','price'=>4300),
 array('name'=>'剃须刀','brand'=>'飞利浦','price'=>3100),
 array('name'=>'跑步机','brand'=>'三和松石','price'=>4900),
 array('name'=>'手表','brand'=>'卡西欧','price'=>960),
 array('name'=>'液晶电视','brand'=>'索尼','price'=>6299),
 array('name'=>'激光打印机','brand'=>'惠普','price'=>1200)
);

$ShoppingList = array_sort($array,'price');
print_r($ShoppingList);

<?php
 //获取列表
 $url = '/s2005/shishi.shtml';
 $con=file_get_contents($url);
 //写正则获取列表中的文章链接
 /*范例 ： <a test=a href='/20130418/n373177942.shtml'
          target='_blank'>湖南沅陵输电工程沉船事故共致6人死亡</a>*/
 $preg = "|<a test=a href='(.*)' target='_blank'>(.*)</a>|iUs";
 // 正则中的/i表示 大小写不敏感 /U 非贪婪匹配 /s 点号可以匹配换行符
 preg_match_all($preg,$con,$arr);
 //var_dump($arr);
    /*
    array(3) {
  [0]=>
  array(40) {
    [0]=>
    string(126) "<a test=a href='/20130418/n373180618.shtml'
target='_blank'>甘肃河西走廊遭大风沙尘侵袭 瞬时最大风力9级</a>"
    [1]=>
    string(112) "<a test=a href='/20130418/n373180612.shtml'
target='_blank'>一线城市住宅地价全部环比上涨</a>"
    ... ...
    [39]=>
    string(124) "<a test=a href='/20130418/n373161633.shtml'
target='_blank'>湖南衡阳发生一起枪击案致1人死 警方正缉凶</a>"
  }
  [1]=>
  array(40) {
    [0]=>
    string(46) "/20130418/n373180618.shtml"
    [1]=>
    string(46) "/20130418/n373180612.shtml"
    ... ...
    [39]=>
    string(46) "/20130418/n373161633.shtml"
  }
  [2]=>
  array(40) {
    [0]=>
    string(42) "甘肃河西走廊遭大风沙尘侵袭 瞬时最大风力9级"
    [1]=>
    string(28) "一线城市住宅地价全部环比上涨"
    ... ...
    [39]=>
    string(40) "湖南衡阳发生一起枪击案致1人死 警方正缉凶"
  }
}
    */
?>

<?php
$url = 'http://www.111cn.net';
$con = file_get_contents($url);
//正则表达式分为标题和内容
$title_preg = "|<h1>(.*)</h1>|iUs";
$content_preg = "|<!-- 正文 -->(.*)<!-- 分享 -->|iUs";
preg_match($title_preg,$con,$title_arr);
preg_match($content_preg,$con,$content_arr);
?>

wget http://pecl.php.net/get/zendopcache-7.0.2.tgz
tar xzf zendopcache-7.0.2.tgz
cd zendopcache-7.0.2
phpize

./configure --with-php-config=/usr/local/php/bin/php-config
make
make install

zend_extension=/usr/local/php/lib/php/extensions/no-debug-zts-20100525/opcache.so
opcache.memory_consumption=128
opcache.interned_strings_buffer=8
opcache.max_accelerated_files=4000
opcache.revalidate_freq=60
opcache.fast_shutdown=1
opcache.enable_cli=1

wget http://pecl.php.net/get/zendopcache-7.0.2.tgz
tar xzf zendopcache-7.0.2.tgz
cd zendopcache-7.0.2
/usr/local/php/bin/phpize
./configure --with-php-config=/usr/local/php/bin/php-config
make

zend_extension=opcache.so
opcache.memory_consumption=128
opcache.interned_strings_buffer=8
opcache.max_accelerated_files=4000
opcache.revalidate_freq=60
opcache.fast_shutdown=1
opcache.enable_cli=1
opcache.enable=1

function generatePassword($length=8)
{
    $chars = array_merge(range(0,9),
                     range('a','z'),
                     range('A','Z'),
                     array('!','@','$','%','^','&','*'));
    shuffle($chars);
    $password = '';
    for($i=0; $i<8; $i++) {
        $password .= $chars[$i];
    }
    return $password;
}

function create_password($pw_length = 8)
{
    $randpwd = '';
    for ($i = 0; $i < $pw_length; $i++)
    {
        $randpwd .= chr(mt_rand(33, 126));
    }
    return $randpwd;
}

// 调用该函数，传递长度参数$pw_length = 6
echo create_password(6);

<?php
mt_srand((double) microtime() * 1000000);
 
function gen_random_password($password_length = 32, $generated_password = ""){
 $valid_characters = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
 $chars_length = strlen($valid_characters) - 1;
 for($i = $password_length; $i--; ) {
  //$generated_password .= $valid_characters[mt_rand(0, $chars_length)];
 
  $generated_password .= substr($valid_characters, (mt_rand()%(strlen($valid_characters))), 1);
 }
 return $generated_password;
}
 
?><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title>php 密码生成器 v 4.0</title>
<style type="text/css">
body {
 font-family: Arial;
 font-size: 10pt;
}
</style>
</head>
<body>
<span style="font-weight: bold; font-size: 15pt;">密码生成器v4.0 by freemouse</span><br /><br />
<?php
 
if (isset($_GET['password_length'])){
 if(preg_match("/([0-9]{1,8})/", $_GET['password_length'])){
  print("密码生成成功:<br />
<span style="font-weight: bold">" . gen_random_password($_GET['password_length']) . "</span><br /><br />n");
 } else {
  print("密码长度不正确!<br /><br />n");
 }
}
 
print <<< end
请为密码生成其指定生成密码的长度:<br /><br />
<form action="{$_SERVER['PHP_SELF']}" method="get">
 <input type="text" name="password_length">
 <input type="submit" value="生成">
</form>
end;
 
?>
</body>
</html>

function generate_password( $length = 8 ) {
    // 密码字符集，可任意添加你需要的字符
    $chars = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789!@#$%^&*()-_ []{}<>~`+=,.;:/?|';

    $password = '';
    for ( $i = 0; $i < $length; $i++ )
    {
        // 这里提供两种字符获取方式
        // 第一种是使用 substr 截取$chars中的任意一位字符；
        // 第二种是取字符数组 $chars 的任意元素
        // $password .= substr($chars, mt_rand(0, strlen($chars) - 1), 1);
        $password .= $chars[ mt_rand(0, strlen($chars) - 1) ];
    }

    return $password;
}

function make_password( $length = 8 )
{
    // 密码字符集，可任意添加你需要的字符
    $chars = array('a', 'b', 'c', 'd', 'e', 'f', 'g', 'h',
    'i', 'j', 'k', 'l','m', 'n', 'o', 'p', 'q', 'r', 's',
    't', 'u', 'v', 'w', 'x', 'y','z', 'A', 'B', 'C', 'D',
    'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L','M', 'N', 'O',
    'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y','Z',
    '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '!',
    '@','#', '$', '%', '^', '&', '*', '(', ')', '-', '_',
    '[', ']', '{', '}', '<', '>', '~', '`', '+', '=', ',',
    '.', ';', ':', '/', '?', '|');

    // 在 $chars 中随机取 $length 个数组元素键名
    $keys = array_rand($chars, $length);

    $password = '';
    for($i = 0; $i < $length; $i++)
    {
        // 将 $length 个数组元素连接成字符串
        $password .= $chars[$keys[$i]];
    }

    return $password;
}

<?php

/**
 * Simple excel generating from PHP5
 *
 * @package Utilities
 * @license http://www.opensource.org/licenses/mit-license.php
 * @author Oliver Schwarz <oliver.schwarz@gmail.com>
 * @version 1.0
 */

/**
 * Generating excel documents on-the-fly from PHP5
 *
 * Uses the excel XML-specification to generate a native
 * XML document, readable/processable by excel.
 *
 * @package Utilities
 * @subpackage Excel
 * @author Oliver Schwarz <oliver.schwarz@vaicon.de>
 * @version 1.1
 *
 * @todo Issue #4: Internet Explorer 7 does not work well with the given header
 * @todo Add option to give out first line as header (bold text)
 * @todo Add option to give out last line as footer (bold text)
 * @todo Add option to write to file
 */
class Excel_XML
{

 /**
  * Header (of document)
  * @var string
  */
        private $header = "<?xml version="1.0" encoding="%s"?>n<Workbook xmlns="urn:schemas-microsoft-com:office:spreadsheet" xmlns:x="urn:schemas-microsoft-com:office:excel" xmlns:ss="urn:schemas-microsoft-com:office:spreadsheet" xmlns:html="http://www.w3.org/TR/REC-html40">";

        /**
         * Footer (of document)
         * @var string
         */
        private $footer = "</Workbook>";

        /**
         * Lines to output in the excel document
         * @var array
         */
        private $lines = array();

        /**
         * Used encoding
         * @var string
         */
        private $sEncoding;
       
        /**
         * Convert variable types
         * @var boolean
         */
        private $bConvertTypes;
       
        /**
         * Worksheet title
         * @var string
         */
        private $sWorksheetTitle;

        /**
         * Constructor
         *
         * The constructor allows the setting of some additional
         * parameters so that the library may be configured to
         * one's needs.
         *
         * On converting types:
         * When set to true, the library tries to identify the type of
         * the variable value and set the field specification for Excel
         * accordingly. Be careful with article numbers or postcodes
         * starting with a '0' (zero)!
         *
         * @param string $sEncoding Encoding to be used (defaults to UTF-8)
         * @param boolean $bConvertTypes Convert variables to field specification
         * @param string $sWorksheetTitle Title for the worksheet
         */
        public function __construct($sEncoding = 'UTF-8', $bConvertTypes = false, $sWorksheetTitle = 'Table1')
        {
                $this->bConvertTypes = $bConvertTypes;
         $this->setEncoding($sEncoding);
         $this->setWorksheetTitle($sWorksheetTitle);
        }
       
        /**
         * Set encoding
         * @param string Encoding type to set
         */
        public function setEncoding($sEncoding)
        {
         $this->sEncoding = $sEncoding;
        }

        /**
         * Set worksheet title
         *
         * Strips out not allowed characters and trims the
         * title to a maximum length of 31.
         *
         * @param string $title Title for worksheet
         */
        public function setWorksheetTitle ($title)
        {
                $title = preg_replace ("/[\|:|/|?|*|[|]]/", "", $title);
                $title = substr ($title, 0, 31);
                $this->sWorksheetTitle = $title;
        }

        /**
         * Add row
         *
         * Adds a single row to the document. If set to true, self::bConvertTypes
         * checks the type of variable and returns the specific field settings
         * for the cell.
         *
         * @param array $array One-dimensional array with row content
         */
        private function addRow ($array)
        {
         $cells = "";
                foreach ($array as $k => $v):
                        $type = 'String';
                        if ($this->bConvertTypes === true && is_numeric($v)):
                                $type = 'Number';
                        endif;
                        $v = htmlentities($v, ENT_COMPAT, $this->sEncoding);
                        $cells .= "<Cell><Data ss:Type="$type">" . $v . "</Data></Cell>n";
                endforeach;
                $this->lines[] = "<Row>n" . $cells . "</Row>n";
        }

        /**
         * Add an array to the document
         * @param array 2-dimensional array
         */
        public function addArray ($array)
        {
                foreach ($array as $k => $v)
                        $this->addRow ($v);
        }

        /**
         * Generate the excel file
         * @param string $filename Name of excel file to generate (...xls)
         */
        public function generateXML ($filename = 'excel-export')
        {
                // correct/validate filename
                $filename = preg_replace('/[^aA-zZ0-9_-]/', '', $filename);
     
                // deliver header (as recommended in php manual)
                header("Content-Type: application/vnd.ms-excel; charset=" . $this->sEncoding);
                header("Content-Disposition: inline; filename="" . $filename . ".xls"");
                // print out document to the browser
                // need to use stripslashes for the damn ">"
                echo stripslashes (sprintf($this->header, $this->sEncoding));
                echo "n<Worksheet ss:Name="" . $this->sWorksheetTitle . "">n<Table>n";
                foreach ($this->lines as $line)
                        echo $line;

                echo "</Table>n</Worksheet>n";
                echo $this->footer;
        }

}
?>

<?php
/*功能：导出excel类
 *时间：2012年8月16日
 *作者：565990136@qq.com
*/
class myexcel{
private $filelds_arr1=array();
private $filelds_arr2=array();
private $filename;
// load library
function __construct($fields_arr1,$fields_arr2,$filename='test'){
 $this->filelds_arr1=$fields_arr1;
 $this->filelds_arr2=$fields_arr2;
 $this->filename=$filename;
 }
function putout(){
require 'php-excel.class.php';

$datavalue=$this->filelds_arr2;
$newdata[0]=$this->filelds_arr1;
$arrcount=count($datavalue);
for($i=1;$i<=$arrcount;$i++){
$newdata[$i]=array_values($datavalue[$i-1]);
}

$filename=$this->filename;
$xls = new Excel_XML('UTF-8', false, 'My Test Sheet');
$xls->addArray($newdata);
$xls->generateXML($filename);
}
}

/*
**用法示例(注意导出的文件名只能用英文)

  $asdasd=new myexcel(array('姓名','电话'),array(array('贾新明','13521530320')),'abc');
  $asdasd->putout();
*/
?>