PHPÊý×Ö¼ÓÃܽâÃÜÀà
<?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
* ----------------------------------------------------------------------------*/
class Encryption {
/**
* ×îÖÕµÄÃÜÎÄ´úÂ룬¿ÉÉèΪÈÎÒâ²»ÖØ¸´µÄ10λӢÎÄ×Ö·ûa-zA-Z
*/
private $replacement = 'urskydMeIV';
/**
* Ôö¼ÓµÄÃÜÎĵÚһ룬¿ÉÉèΪ1λ³ý0ÒÔÍâµÄÕûÊý£¬¼´ 1-9
*/
private $prefix = "8";
/**
* ¹«Ô¿,³¤¶ÈСÓÚ8λµÄÕýÕûÊý
*/
private $match = "111111";
/**
* ת»»ºó¶ÔÕÕÊý×é
*/
private $replaceenc;
private $replacedec;
function __construct() {
for($i =0; $i < 10; $i++) {
$this->replaceenc['/'.$i.'/'] = $this->replacement{$i};
$this->replacedec['/'.$this->replacement{$i}.'/'] = $i;
}
}
public function encrypt($str) {
return preg_replace(
array_keys($this->replaceenc),
$this->replaceenc,
$this->mynotin(preg_replace("/(.)(.)/", "${2}${1}", $str))
);
}
public function decrypt($str) {
return preg_replace("/(.)(.)/", "${2}${1}",
$this->mynotout(preg_replace(array_keys($this->replacedec),$this->replacedec,$str))
);
}
private function mynotin($str) {
$str_out = "";
$i = 0;
while(isset($str{7*$i})) {
$str_out .= (($this->prefix.substr($str, $i*7, 7))+0)^$this->match;
$i++;
}
return $str_out;
}
private function mynotout($str) {
$str_out = "";
$i = 0;
while(isset($str{8*$i})) {
$str_out .= substr((substr($str, $i*8, 8)+0)^$this->match, 1);
$i++;
}
return $str_out;
}
}
?>
Ïà¹ØÎĵµ£º
http://fw.qq.com/ipaddress·µ»ØÀàËÆ£ºvar IPData = new Array("61.51.71.183","","±±¾©ÊÐ","");
<?php
function get_ip_place(){
$ip=file_get_contents(http://fw.qq.com/ipaddress);
$ip=str_replace('"',' ',$ip);
$ip2=explode("(",$ip);
$a=substr($ip2[1],0,-2);
$b=explode(",",$a);
return&n ......
<?
$fp = fsockopen ("passport.baidu.com", 80,
$errno, $errstr, 30);
if (!$fp) {
echo "$errstr
($errno)<br>\n";
} else {
$msg="GET
/?login&username=lapiaotuan22&password=oyhz123456
HTTP/1.0\r\n";
$msg.="Host:passport.baidu.com \r\n&quo ......
Ö÷ҪʹÓÃÁË int substr_count ( string haystack, string needle [, int offset [, int length]] ) Õâ¸ö·½·¨,Õâ¸ö·½·¨±éÀú´ý²âµÄ×Ö·û´®$strÖÐÓÐûÓÐ$allergicWordÊý×éÖÐËù°üº¬µÄÃô¸Ð´Ê£º
$allergicWord = array('Ôà»°','ÂîÈË»°');
$str = 'Õâ ......
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
¡¡¡ ......