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function randomkeys($length)
{
$key='';
$pattern='123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz';
for($i=0;$i<$length;$i++)
{
$key .= $pattern{mt_rand(0,47)};
}
return $key;
}
echo randomkeys(20);
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$allergicWord = array('Ôà»°','ÂîÈË»°');
$str = 'Õâ ......
//ÉÏ´«Îļþ
$dir="../upfile/jianli";
set_time_limit(0);
extract($_FILES);
if(!empty($res_clett["name"])){
$upfile=&$HTTP_POST_FILES['con_pdf'];
$upfileEx=substr($upfile['name'],-3);
$tmp_name=date("YmdGhis").'.'.$upfileEx;
&nb ......
1 ÔÚSQLÓï¾äÖпÉͨ¹ýÌí¼ÓÏÞÖÆÌõ¼þ:left(text,20)ֻȡtextÎı¾µÄǰ20¸ö×Ö;
¡¡¡¡2 ¿ÉÒÔÓÃlimit fromRecord, RecordNum À´×÷Ϊ·ÖҳʹÓÃ,±ÈÈçlimit 0,30±íʾ´ÓµÚÒ»¸ö¼Ç¼¿ªÊ¼±éÀú30¸ö¼Í¼;
¡¡¡¡3 Á½¸ö±íµÄÁ¬½Ó¿ÉÒÔÊÇ£ºtable1 join table2 using x(xΪÁ½¸ö±íµÄ¹«¹²×Ö¶Î),»òÕßÊÇtable1 join table2 on table1.x = table2.x
¡¡¡ ......
<?php
/* ----------------------------------------------------------------------------
* Script Name: encrypt.php
* Creation Date: 2008-4-7 10:36
* Last Modified: 2008-4-12 16:00
* Author: meyu
* Copyright (c) 2007
* Purpose: Êý×Ö×Ö·û´®¼òÒ×¼Ó½âÃÜ
* --------------------------------- ......
<?php
###########################################
#×÷Õß: Éòäò(S&S Lab) #
#E-mail:shenlian@hotmail.com ......