php常用ip转换与文件下载代码
php教程常用ip转换与文件下载代码
ip转换
php中将ip转换成整型的函数ip2long()容易出现问题,在ip比较大的情况下,会变成负数。
<?php
$ip = "192.168.1.2";
$ip_n = ip2long($ip);
echo $ip_n; //得到 -1062731518
?>
由于ip转换成的整型值太大超出了整型的范围,所以变成负数。需写成$ip_n = bindec(decbin(ip2long($ip)));这样便可得到无符号的整型数,如下
<?php
$ip = "192.168.1.2";
$ip_n = bindec(decbin(ip2long($ip)));
echo $ip_n; //得到 3232235778
?>
文件下载代码
<?php
header("content-type: application/force-download");
header("content-disposition: attachment; filename=ins.jpg");
readfile("imgs/test_zoom.jpg");
?>
第一行代码是强制下载;
第二行代码是给下载的内容指定一个名字;
第三行代码是把下载的内容读进文件中。
example #1 forcing a download using readfile()
<?php
$file = 'monkey.gif';if (file_exists($file)) {
header('content-description: file transfer');
header('content-type: application/octet-stream');
header('content-disposition: attachment; filename='.basename($file));
header('content-transfer-encoding: binary');
header('expires: 0');
header('cache-control: must-revalidate, post-check=0, pre-check=0');
header('pragma: public');
header('content-length: ' . filesize($file));
ob_clean();
flush();
readfile($file);
exit;
}
?>
1 function api_notice_increment($url, $data)
2 {
3 $ch = curl_init();
4 curl_setopt($ch, curlopt_header,0);
5 curl_setopt($ch, curlopt_returntransfer, 1);
6
7 curl_setopt($ch, curlopt_url, $url);
8 curl_setopt($ch, curlopt_post, 1);
9 curl_setopt($ch, curlopt_postfields, $data);
10 $lst['rst'] = curl_exec($ch);
11 $lst['info'] = curl_getinfo($ch);
12 curl_close($ch);
13 return $lst;
14 }
15 $url = "http://localhost/test/post.api.php教程?app=test&act=testact";
16 $data = array (
17 'goods_id' => '1010000001224',
18 'store_id' => '20708',
19 'status' => 'goodsdownshelf',
20 );
<?php
error_log(var_export($_post,1),3,'d:/post.txt');
'goods_id' => '1010000001224',
'store_id' => '20708',
'status' => 'goodsdownshelf',
)
1 <?php
2 function api_notice_increment($url, $data)
3 {
4 $ch = curl_init();
5 curl_setopt($ch, curlopt_header,0);
6 curl_setopt($ch, curlopt_returntransfer, 1);
7
8 curl_setopt($ch, curlopt_url, $url);
9 curl_setopt($ch, curlopt_post, 1);
10 $data = http_build_query($data);
11 curl_setopt($ch, curlopt_postfields, $data);
12 $lst['rst'] = curl_exec($ch);
13 $lst['info'] = curl_getinfo($ch);
14 curl_close($ch);
15 return $lst;
16 }
17 $url = "http://localhost/test/post.api.php?app=test&act=testact";
18 $data = array (
19 'goods_id' => '1010000001224',
20 'store_id' => '20708',
21 'status' => 'goodsdownshelf',
22 );
23
24
25 api_notice_increment($url,$data);
'goods_id' => '1010000001224',
'store_id' => '20708',
'status' => 'goodsdownshelf',
)
<style type="text/css教程"> 二款php教程分页实例代码
a.pagecool,.pagecoolselect,.pagecoolpre,.pagecoolnext,.pageinfo,.curtotalx,.pagecoolprex,.pagecoolnextx{float:left;height:20px;font-family:arial,宋体;color:#444;font-weight:bold}
a.pagecool,.pagecoolselect{width:22px;height:18px;font-weight:bold;border:#ccc 1px solid;margin:0 3px 0 3px;text-align:center;line-height:18px}
a.pagecool{text-decoration:none;color:#444;background:#fbf9f9;display:block}
a.pagecool:hover,.pagecoolselect{color:#f00;background:#ffc}
.pagecoolpre,.pagecoolnext{margin:0 8px 0 8px}
.pageinfo{line-height:20px;margin:0 0 0 8px;font-family:verdana,arial}
.pageinfo span{color:#f60}
.pagecoolprex,.pagecoolnextx{margin:0 0 0 5px}
.curtotalx{color:#666;line-height:20px;margin:0 2px 0 0;font-weight:normal;font-family:verdana,arial;text-align:right}
</style>
<?php
!function_exists('cdstr') && exit('forbidden');
class wrzc_netpage {
private $page_name="p";
private $pagesize=10;//每页显示记录条数
private $total=0;//总的记录数
private $pagebarnum=10;//bar数。
private $totalpage=0;
private $linkhead="";//url地址头
private $current_pageno=1;//当前页
public function __construct($total,$pagesize=10) {
if((!is_int($total))||($total<0))die("记录总数错误!");
if((!is_int($pagesize))||($pagesize<0))die("pagesize错误!");
$this->set("total",$total);
$this->set("pagesize",$pagesize);
$this->set('totalpage',ceil($total/$pagesize));
}
public function set($var,$value){
if(in_array($var,get_object_vars($this)))
$this->$var=$value;
else {
throw new pb_page_exception("error in set():".$var." does not belong to pb_page!");
}
}
public function get_linkhead() {
$this->set_current_page();
if(empty($_server['query_string'])){
$this->linkhead=$_server['request_uri']."?".$this->page_name."=";
}else{
if(isset($_get[$this->page_name])){
$this->linkhead=str_replace($this->page_name.'='.$this->current_pageno,$this->page_name.'=',$_server['request_uri']);
} else {
$this->linkhead=$_server['request_uri'].'&'.$this->page_name.'=';
}
}
}
/*为指定的页面返回地址值*/
public function get_url($pageno=1){
if(empty($this->linkhead))$this->get_linkhead();
return str_replace($this->page_name.'=',$this->page_name.'='.$pageno,$this->linkhead);
}
/*当前页*/
public function set_current_page($current_pageno=0) {
if(empty($current_pageno)){
if(isset($_get[$this->page_name])){$this->current_pageno=intval($_get[$this->page_name]);}
}else{
$this->current_pageno=intval($current_pageno);
}
if ($this->current_pageno>$this->totalpage) header("location:./");//$this->current_pageno=1
}
public function set_format($str) {return $this->format_left.$str.$this->format_right;}
/* 获取显示"下一页"*/
public function next_page() {
if($this->current_pageno<$this->totalpage){
return '<a href="'.$this->get_url($this->current_pageno+1).'">'.$this->next_page.'</a>';
}
return '';
}
/*获取显示“上一页”*/
public function pre_page() {
if($this->current_pageno>1){return '<a href="'.$this->get_url($this->current_pageno-1).'">'.$this->pre_page.'</a>';}
return '';
}
/*获取显示“首页”*/
public function first_page() {return '<a href="'.$this->get_url(1).'">'.$this->first_page."</a>";}
/*获取显示“尾页”*/
public function last_page() {return '<a href="'.$this->get_url($this->totalpage).'">'.$this->last_page.'</a>';}
public function nowbar() {
if ($this->totalpage > 1){
$begin=$this->current_pageno-ceil($this->pagebarnum/2);
$begin=($begin>=1)?$begin:1;
$return='';
for($i=$begin;$i<$begin+$this->pagebarnum;$i++){
if($i<=$this->totalpage){
if($i!=$this->current_pageno){
$return.="<a href=".$this->get_url($i)." class=pagecool>".$i.'</a>';
}else {
$return.='<div class=pagecoolselect>'.$i.'</div>';
}
}else{
break;
}
}
unset($begin);
}
return $return;
}
/*“上一页”*/
public function pre_bar() {
if($this->current_pageno>ceil($this->pagebarnum/2)){
$pageno=$this->current_pageno-$this->pagebarnum;
if($pageno<=0)$pageno=1;
return $this->set_format('<a href="'.$this->get_url($pageno).'">'.$this->pre_bar."</a>");
}
return $this->set_format('<a href="'.$this->get_url(1).'">'.$this->pre_bar."</a>");
}
/*“下一页”*/
public function next_bar() {
if($this->current_pageno<$this->totalpage-ceil($this->pagebarnum/2)){
$pageno=$this->current_pageno+$this->pagebarnum;
return $this->set_format('<a href="'.$this->get_url($pageno).'">'.$this->next_bar."</a>");
}
return $this->set_format('<a href="'.$this->get_url($this->totalpage).'">'.$this->next_bar."</a>");
}
/*跳转*/
public function select() {
$return='<select name="pb_page_select" onchange="window.location.href=''.$this->linkhead.''+this.options[this.selectedindex].value">';
for($i=1;$i<=$this->totalpage;$i++){
if($i==$this->current_pageno){
$return.='<option value="'.$i.'" selected>'.$i.'</option>';
}else{
$return.='<option value="'.$i.'">'.$i.'</option>';
}
}
$return.='</select>';
return $return;
}
public function pagebar($mode=1){
global $global;
$this->set_current_page();
$this->get_linkhead();
//return ("共有<font color=red><b>".$this->total."</b></font>条记录。");
switch ($mode) {
case 1:
$this->pre_page='<img src='.$global['www_2domain'].'/images/precool.gif title=上一页 class=pagecoolpre>';
$this->next_page='<img src='.$global['www_2domain'].'/images/nextcool.gif title=下一页 class=pagecoolnext>';
return $this->pre_page().$this->nowbar().$this->next_page().'<div class=pageinfo>第<span>'.$this->current_pageno.'</span>页 / 共<span>'.$this->totalpage.'</span>页</div>';
break;
case 2:
$this->pre_page='<img src='.$global['www_2domain'].'/images/precoolx.gif title=上一页 class=pagecoolprex>';
$this->next_page='<img src='.$global['www_2domain'].'/images/nextcool.gif title=下一页 class=pagecoolnextx>';
return '<div class=curtotalx>'.$this->current_pageno.'/'.$this->totalpage.'</div>'.$this->pre_page().$this->next_page();
//return '<div class=curtotalx>'.$this->total.'/'.$this->current_pageno.'/'.$this->totalpage.'</div>'.$this->pre_page().$this->next_page();
break;
case 3:
$this->pre_page='<img src='.$global['www_2domain'].'/images/precoolx.gif title=上一页 class=pagecoolprex>';
$this->next_page='<img src='.$global['www_2domain'].'/images/nextcool.gif title=下一页 class=pagecoolnextx>';
return '<div class=curtotalx>第'.$this->current_pageno.'页/共'.$this->totalpage.'页</div>'.$this->pre_page().$this->next_page();
break;
}
}
}
?>
代码二
<?php
!function_exists('cdstr') && exit('forbidden');
class uobarpage {
private $page_name="p";//page标签,用来控制url页。比如说xxx.php?pb_page=2中的pb_page
private $pagesize=10;//每页显示记录条数
private $total=0;//总的记录数
private $pagebarnum=10;//控制记录条的个数。
private $totalpage=0;//总页数
private $linkhead="";//url地址头
private $current_pageno=1;//当前页
/**
* 显示符号设置
*/
private $next_page='>';//下一页
private $pre_page='<';//上一页
private $first_page='first';//首页
private $last_page='last';//尾页
private $pre_bar='<<';//上一分页条
private $next_bar='>>';//下一分页条
private $format_left=' [';
private $format_right='] ';
public function __construct($total,$pagesize=10) {
if((!is_int($total))||($total<0))die("记录总数错误!");
if((!is_int($pagesize))||($pagesize<0))die("pagesize错误!");
$this->set("total",$total);
$this->set("pagesize",$pagesize);
$this->set('totalpage',ceil($total/$pagesize));
}
public function set($var,$value)
{
if(in_array($var,get_object_vars($this)))
$this->$var=$value;
else {
throw new pb_page_exception("error in set():".$var." does not belong to pb_page!");
}
}
/**
* get the default url获取指定的url地址
*
*/
/*
public function get_linkhead() {
$this->set_current_page();
$this->linkhead=$_server['php_self']."?".$this->page_name."=";
}
*/
public function get_linkhead() {
$this->set_current_page();
if(empty($_server['query_string'])){
$this->linkhead=$_server['request_uri']."?".$this->page_name."=";
}else{
if(isset($_get[$this->page_name])){
$this->linkhead=str_replace($this->page_name.'='.$this->current_pageno,$this->page_name.'=',$_server['request_uri']);
} else {
$this->linkhead=$_server['request_uri'].'&'.$this->page_name.'=';
}
}
}/**
* 为指定的页面返回地址值
*/
public function get_url($pageno=1)
{
if(empty($this->linkhead))$this->get_linkhead();
return str_replace($this->page_name.'=',$this->page_name.'='.$pageno,$this->linkhead);
}
/**
* 设置当前页面
*
*/
public function set_current_page($current_pageno=0) {
if(empty($current_pageno)){
if(isset($_get[$this->page_name])){
$this->current_pageno=intval($_get[$this->page_name]);
}
}else{
$this->current_pageno=intval($current_pageno);
}
if ($this->current_pageno>$this->totalpage) header("location:./");//////////$this->current_pageno=1////////////
}
public function set_format($str) {
return $this->format_left.$str.$this->format_right;
}/**
* 获取显示"下一页"的代码
*
* @return string
*/
public function next_page() {
if($this->current_pageno<$this->totalpage){
return ' <a href="'.$this->get_url($this->current_pageno+1).'">'.$this->next_page.'</a> ';
}
return '';
}
/**
* 获取显示“上一页”的代码
*
* @return string
*/
public function pre_page() {
if($this->current_pageno>1){
return '<a href="'.$this->get_url($this->current_pageno-1).'">'.$this->pre_page.'</a> ';
}
return '';
}
/**
* 获取显示“首页”的代码
*
* @return string
*/
public function first_page() {
return '<a href="'.$this->get_url(1).'">'.$this->first_page."</a>";
}
/**
* 获取显示“尾页”的代码
*
* @return string
*/
public function last_page() {
return '<a href="'.$this->get_url($this->totalpage).'">'.$this->last_page.'</a>';
}
//gyl1
public function nowbar() {
$begin=$this->current_pageno-ceil($this->pagebarnum/2);
$begin=($begin>=1)?$begin:1;
$return='';
for($i=$begin;$i<$begin+$this->pagebarnum;$i++)
{
if($i<=$this->totalpage){
if($i!=$this->current_pageno)
$return.=' <a href="'.$this->get_url($i).'">'.'<span class=page1 onmouseo教程ver=this.style.background="ffffcc" onmouseout=this.style.background="fbf9f9"><b>'.$i.'</b></span>'.'</a> ';
else
$return.='<span class=page2><b>'.$i.'</b></span>';
}else{
break;
}
}
unset($begin);
return $return;
}
/**
* 获取显示“上一分页条”的代码
*
* @return string
*/
public function pre_bar()
{
if($this->current_pageno>ceil($this->pagebarnum/2)){
$pageno=$this->current_pageno-$this->pagebarnum;
if($pageno<=0)$pageno=1;
return $this->set_format('<a href="'.$this->get_url($pageno).'">'.$this->pre_bar."</a>");
}
return $this->set_format('<a href="'.$this->get_url(1).'">'.$this->pre_bar."</a>");
}
/**
* 获取显示“下一分页条”的代码
*
* @return string
*/
public function next_bar()
{
if($this->current_pageno<$this->totalpage-ceil($this->pagebarnum/2)){
$pageno=$this->current_pageno+$this->pagebarnum;
return $this->set_format('<a href="'.$this->get_url($pageno).'">'.$this->next_bar."</a>");
}
return $this->set_format('<a href="'.$this->get_url($this->totalpage).'">'.$this->next_bar."</a>");
}
/**
* 获取显示跳转按钮的代码
*
* @return string
*/
public function select()
{
$return='<select name="pb_page_select" onchange="window.location.href=''.$this->linkhead.''+this.options[this.selectedindex].value">';
for($i=1;$i<=$this->totalpage;$i++)
{
if($i==$this->current_pageno){
$return.='<option value="'.$i.'" selected>'.$i.'</option>';
}else{
$return.='<option value="'.$i.'">'.$i.'</option>';
}
}
$return.='</select>';
return $return;
}
/**
* 获取mysql教程 语句中limit需要的值
*
* @return string
*/
public function limit2(){
//return ("共有<font color=red><b>".$this->total."</b></font>条记录。");
//return ('共有<font color=red>'.$this->total.'</font>条记录。第<font color=red>'.$this->current_pageno)."</font>页/共<font color=red>".$this->totalpage.'</font>页';
return ('<span style="height:20px;padding-top:3px;">共<b>'.$this->current_pageno.' / '.$this->totalpage.'</b>页</span>');
}
public function pagebar($mode=1)
{ global $global;
$this->set_current_page();
$this->get_linkhead();
switch ($mode)
{
case '1':
$this->next_page='<img src='.$global['www_2domain'].'/images/next.gif border=0 align=absmiddle alt=下一页>';
$this->pre_page='<img src='.$global['www_2domain'].'/images/pre.gif border=0 align=absmiddle alt=上一页>';
return $this->pre_page().$this->nowbar().$this->next_page();
//return $this->pre_page().$this->nowbar().$this->next_page().'第'.$this->select().'页';
break;
}
}
}
?>
function getip() {
if(getenv('http_client_ip') && strcasecmp(getenv('http_client_ip'), 'unknown')) {
$onlineip = getenv('http_client_ip');
} elseif(getenv('http_x_forwarded_for') && strcasecmp(getenv('http_x_forwarded_for'), 'unknown')) {
$onlineip = getenv('http_x_forwarded_for');
} elseif(getenv('remote_addr') && strcasecmp(getenv('remote_addr'), 'unknown')) {
$onlineip = getenv('remote_addr');
} elseif(isset($_server['remote_addr']) && $_server['remote_addr'] && strcasecmp($_server['remote_addr'], 'unknown')) {
$onlineip = $_server['remote_addr'];
}
$onlineip = preg_replace("/^([d.]+).*/", "1", $onlineip);
return $onlineip;
}
function htmlout($str){
$guest=$str;
$guest=str_replace("&","&",$guest);
$guest=str_replace(" "," ",$guest);
//$guest=str_replace(" "," ",$guest);
$guest=str_replace(" "," ",$guest);
//$guest=htmlspecialchars($guest);
$guest=str_replace(">",">",$guest);
$guest=str_replace("<","<",$guest);
$guest=str_replace("rn","<br>",$guest);
$guest=str_replace("'","'",$guest);
$guest=str_replace(""",""",$guest);
return($guest);
}
function badstr ($str,$to='*') {
global $global;
$from = $str;
$rg_banname=$global['m_badwords'];
$rg_banname=explode(',',$rg_banname);
foreach($rg_banname as $value){
if(strpos($str,$value)!==false){
//$from = strtr($str,$value,$to);
$from = str_replace($value,$to,$from);
}
}
return($from);
}
function mkpath($mkpath,$mode=0777){
$path_arr=explode('/',$mkpath);
foreach ($path_arr as $value){
if(!empty($value)){
if(empty($path))$path=$value;
else $path.='/'.$value;
is_dir($path) or mkdir($path,$mode) or chmod($path,$mode);
}
}
if(is_dir($mkpath))return true;
return false;
}
function daddslashes($string, $force = 0) {
global $magic_quotes_gpc;
if(!$globals['magic_quotes_gpc'] || $force || $magic_quotes_gpc) {
if(is_array($string)) {
foreach($string as $key => $val) {
$string[$key] = daddslashes($val, $force);
}
} else {
$string = addslashes($string);
}
}
return $string;
}
function dhtmlspecialchars($string) {
if(is_array($string)) {
foreach($string as $key => $val) {
$string[$key] = dhtmlspecialchars($val);
}
} else {
$string = preg_replace('/&((#(d{3,5}|x[a-fa-f0-9]{4})|[a-za-z][a-z0-9]{2,5});)/', '&1',
str_replace(array('&', '"', '<', '>'), array('&', '"', '<', '>'), $string));
}
return $string;
}
function trimm ($str) {
$str = trim(str_replace(" "," ",$str));
//$str = str_replace("'","‘",$str);
return $str;
}
function cdstr($length) {
$possible = "0123456789";
$str = "";
while(strlen($str) < $length) $str .= substr($possible, (rand() % strlen($possible)), 1);
return($str);
}
function cdstrletters($length) {
$possible = "abcdefghijklmnopqrstuvwxyz";
$str = "";
while(strlen($str) < $length) $str .= substr($possible, (rand() % strlen($possible)), 1);
return($str);
}
function cdnumletters($length) {
$possible = "0123456789abcdefghijklmnopqrstuvwxyz";
$str = "";
while(strlen($str) < $length) $str .= substr($possible, (rand() % strlen($possible)), 1);
return($str);
}
// date_format2($rs['time'],'%y年%m月%d日%h时%m分%s秒');
function date_format2($string, $format='%b %e, %y', $default_date=null)
{
if (substr(php教程_os,0,3) == 'win') {
$_win_from = array ('%e', '%t', '%d');
$_win_to = array ('%#d', '%h:%m:%s', '%m/%d/%y');
$format = str_replace($_win_from, $_win_to, $format);
}
if($string != '') {
return strftime($format, smarty_make_timestamp($string));
} elseif (isset($default_date) && $default_date != '') {
return strftime($format, smarty_make_timestamp($default_date));
} else {
return;
}
}
function smarty_make_timestamp($string){
if(empty($string)) {
$string = "now";
}
$time = strtotime($string);
if (is_numeric($time) && $time != -1)
return $time;
if (preg_match('/^d{14}$/', $string)) {
$time = mktime(substr($string,8,2),substr($string,10,2),substr($string,12,2),
substr($string,4,2),substr($string,6,2),substr($string,0,4));
return $time;
}
$time = (int) $string;
if ($time > 0)
return $time;
else
return time();
}
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