php 获得 精确 时间 有意思～！！～～！
/**
*
* @param <type> $format
* @param <type> $utimestamp
* @return <type>
* @example
*
* echo udate('H:i:s.u'); 19:31:28.7812
*
* echo udate('H:i:s.uuuu'); 19:31:28.78127781277812778127
*
* echo udate('Y-M-D H:i:s.u'); 2010-Apr-Thu 19:40:49.484376
*
* echo udate('Y-m-d H:i:s.u'); 2010-04-22 20:20:32.453127
*
* echo date("Ymd").udate('Hisu'); 20100422201737484376
*
* echo date("Ymd").udate('Hisuu'); 20100422201926156251156251
*
* @author wulei
* @date
*
*/
function udate($format, $utimestamp = null)
{
if (is_null($utimestamp))
$utimestamp = microtime(true);
$timestamp = floor($utimestamp);
$milliseconds = round(($utimestamp - $timestamp) * 1000000);
return date(preg_replace('`(?<!\\\\)u`', $milliseconds, $format), $timestamp);
}
相关文档：
/**
* 获得当前时间的毫秒数，用户检测页面的执行时间
*
* @author cjz
* @date Thu Apr 09 15:05:55 CST 2009
*
* @return float(毫秒数)
*/
function myGetMicrotime()
{
list($usec,$sec) = explode(" ",microtime());
return ((float)$usec + (float)$sec);
}
......
Perl Memcached的客户端序列化对象采用的是Storable模块的nfreeze方法，而这个方法又调用了c扩展的do_store方法；反序列化使用的是Storable模块的thaw方法，而这个方法又是调用的c扩展的do_retrieve方法。
而在PHP中，进行的却是serialize和unserialize操作。造成了无法正常读取的结果。
Perl存储一个('a', 'c')数组的引� ......
<?php
header("content-type:image/png");
$img=ImageCreate(100,35);
$bgcolor=ImageColorAllocate($img,0,0,0);
$red=ImageColorAllocate($img,255,0,0);
$bgcolortrans=ImageColorTransparent($img,$bgcolor);
ImageString($img,5,10,10,"PNG PHP",$red);
ImagePng($img);
ImageDestro ......
<?php
header("content-type:text/html; charset=UTF-8");
/*
* record kid words and insert into database
* user by sending email to publication kid words
*
*/
include 'POP3.php';
include 'email_class.php';
include 'Mail_mimeDecode.php';
//include 'include/compatible ......
<?php
class
CacheException
extends
Exception {}
/**
* 缓存抽象类
*/
abstract
class
Cache_Abstract {
/**
&nbs ......
