php上传类（安全上传类） php上传类（安全上传类）<?php //php文件上传类 //author: lenix 2014.10.7<!--more--> header("Content-Type:text/html; charset=utf-8"); date_default_timezone_set("Asia/Shanghai"); class UploadFile { private $imageType=["image/gif","image/jpeg","image/jpg","image/png","image/x-png","image/bmp","image/x-ms-bmp","image/pjpeg"];//图片类型 private $fileType=["application/zip","application/msexcel","application/xml","application/vnd.ms-excel","application/vnd.openxmlformats-officedocument.wordprocessingml.document","application/mspowerpoint","application/vnd.ms-powerpoint","application/pdf","application/x-shockwave-flash","application/x-rar-compressed","application/x-rar","audio/mpeg","audio/x-ms-wma","flv-application/octet-stream","audio/x-ms-wmv","video/mp4","video/x-flv","audio/x-wav","application/msword","video/mpeg"];//文件类型 private $tmpName; private $fileName; private $error; private $fileSize;//上传文件大小 private $maxSize=10000000;//最大允许上传大小 private $upName; private $upDir="uploadfile/";//上传目录 //构造函数 默认为图片上传 function __construct($upType="image") { $this-&gt;tmpName = $_FILES["file"]["tmp_name"]; $this-&gt;fileName = $_FILES["file"]["name"]; $this-&gt;error = $_FILES["file"]["error"]; $this-&gt;fileSize = $_FILES["file"]["size"]; $this-&gt;upName=date('Y') . date('m') . date('d') . uniqid();//生成随机文件名 //判断文件大小 if ($this-&gt;fileSize &gt; $this-&gt;maxSize) exit ("文件超过".($this-&gt;maxSize / 1024 / 1024)." M大小"); if ($this-&gt;error &gt; 0) exit($error);//判断上传错误 if ($upType== "image") { $this-&gt;checkImage(); }else{ $this-&gt;checkFile(); } $this-&gt;uploadFile(); } //检测图片类型 function checkImage() { $ftype=getimagesize($this-&gt;tmpName); if (!in_array($ftype['mime'],$this-&gt;imageType)) { exit("非法图片类型"); } } //检测文件类型 function checkFile() { $finfo = finfo_open(FILEINFO_MIME_TYPE); $ftype= finfo_file($finfo, $this-&gt;tmpName);//根据文件内容来判断文件类型 finfo_close($finfo); if (!in_array($ftype,$this-&gt;fileType)) { exit("非法文件类型"); } } //获得文件扩展名 function getExtension($fileext) { return pathinfo($fileext, PATHINFO_EXTENSION); } //上传文件 function uploadFile() { if (!is_uploaded_file($this-&gt;tmpName)) { exit("非法上传"); } else { move_uploaded_file($this-&gt;tmpName, //"upload/" . $_FILES["file"]["name"]); $this-&gt;upDir . $this-&gt;upName .'.'. $this-&gt;getExtension($this-&gt;fileName)); echo "上传为: " . $this-&gt;upDir . $this-&gt;upName .'.'. $this-&gt;getExtension($this-&gt;fileName); } } } $up=new UploadFile();//上传图片 //$up=new UploadFile("file");//上传文件 ?>

php curl 突破防盗链 php curl 突破防盗链<?php $img=$_GET['img']; function fetch_urlpage_contents($url){ $ch = curl_init(); curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); curl_setopt($ch, CURLOPT_BINARYTRANSFER, 1); curl_setopt ($ch, CURLOPT_URL, $url); curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1); curl_setopt ($ch, CURLOPT_TIMEOUT, 1000); curl_setopt ($ch, CURLOPT_CONNECTTIMEOUT, 1000); curl_setopt($ch, CURLOPT_USERAGENT, 'Googlebot/2.1 (+http://www.google.com/bot.html)'); curl_setopt($ch, CURLOPT_HTTPHEADER, array('X-FORWARDED-FOR:110.80.7.42', 'CLIENT-IP:110.80.7.42')); //构造IP curl_setopt($ch, CURLOPT_REFERER, "http://www.baidu.com/"); //构造来路 //curl_setopt($ch, CURLOPT_HEADER, 1); $file_contents = curl_exec($ch); $imgurl=str_replace("http://","",$url); $imgurl=str_replace("/","-",$imgurl); $fp = fopen('imgs/'.$imgurl, 'w'); fwrite($fp,$file_contents); fclose($fp); header("Location:imgs/$imgurl"); curl_close($ch); return $file_contents; } $urls='http://img1.xxxxxx.com/'.$img; $haha=fetch_urlpage_contents($urls); //echo $haha;

PHP获取网页内容的几种方法 PHP获取网页内容的几种方法方法1: 用file_get_contents 以get方式获取内容<?php$url='http://www.domain.com/?para=123';$html = file_get_contents($url);echo $html;?>方法2：用file_get_contents函数,以post方式获取url<?php$url = 'http://www.domain.com/test.php?id=123';$data = array ('foo' => 'bar');$data = http_build_query($data);$opts = array ('http' => array ('method' => 'POST','header'=> "Content-type: application/x-www-form-urlencoded\r\n" ."Content-Length: " . strlen($data) . "\r\n",'content' => $data));$ctx = stream_context_create($opts);$html = @file_get_contents($url,'',$ctx);如果需要再传递cookie数据,则把'header'=> "Content-type: application/x-www-form-urlencoded\r\n" ."Content-Length: " . strlen($data) . "\r\n",修改为'header'=> "Content-type: application/x-www-form-urlencoded\r\n" ."Content-Length: " . strlen($data) . "\r\n"."cookie:cookie1=c1;cookie2=c2\r\n" ;即可方法3: 用fopen打开url, 以get方式获取内容<?php$fp = fopen($url, 'r');$header = stream_get_meta_data($fp);//获取报头信息while(!feof($fp)) {$result .= fgets($fp, 1024);}echo "url header: {$header} ":echo "url body: $result";fclose($fp);?>方法4: 用fopen打开url, 以post方式获取内容<?php$data = array ('foo2' => 'bar2','foo3'=>'bar3');$data = http_build_query($data);$opts = array ('http' => array ('method' => 'POST','header'=> "Content-type: application/x-www-form-urlencoded\r\nCookie:cook1=c3;cook2=c4\r\n" ."Content-Length: " . strlen($data) . "\r\n",'content' => $data));$context = stream_context_create($opts);$html = fopen('http://www.test.com/zzzz.php?id=i3&id2=i4','rb' ,false, $context);$w=fread($html,1024);echo $w;?>方法5：用fsockopen函数打开url，以get方式获取完整的数据，包括header和body<?phpfunction get_url ($url,$cookie=false){$url = parse_url($url);$query = $url[path]."?".$url[query];echo "Query:".$query;$fp = fsockopen( $url[host], $url[port]?$url[port]:80 , $errno, $errstr, 30);if (!$fp) {return false;} else {$request = "GET $query HTTP/1.1\r\n";$request .= "Host: $url[host]\r\n";$request .= "Connection: Close\r\n";if($cookie) $request.="Cookie: $cookie\n";$request.="\r\n";fwrite($fp,$request);while(!@feof($fp)) {$result .= @fgets($fp, 1024);}fclose($fp);return $result;}}//获取url的html部分，去掉headerfunction GetUrlHTML($url,$cookie=false){$rowdata = get_url($url,$cookie);if($rowdata){$body= stristr($rowdata,"\r\n\r\n");$body=substr($body,4,strlen($body));return $body;}return false;}?>方法6：用fsockopen函数打开url，以POST方式获取完整的数据，包括header和body<?phpfunction HTTP_Post($URL,$data,$cookie, $referrer=""){// parsing the given URL$URL_Info=parse_url($URL);// Building referrerif($referrer=="") // if not given use this script as referrer$referrer="111";// making string from $dataforeach($data as $key=>$value)$values[]="$key=".urlencode($value);$data_string=implode("&",$values);// Find out which port is needed - if not given use standard (=80)if(!isset($URL_Info["port"]))$URL_Info["port"]=80;// building POST-request:$request.="POST ".$URL_Info["path"]." HTTP/1.1\n";$request.="Host: ".$URL_Info["host"]."\n";$request.="Referer: $referer\n";$request.="Content-type: application/x-www-form-urlencoded\n";$request.="Content-length: ".strlen($data_string)."\n";$request.="Connection: close\n";$request.="Cookie: $cookie\n";$request.="\n";$request.=$data_string."\n";$fp = fsockopen($URL_Info["host"],$URL_Info["port"]);fputs($fp, $request);while(!feof($fp)) {$result .= fgets($fp, 1024);}fclose($fp);return $result;}?>方法7:使用curl库，使用curl库之前，可能需要查看一下php.ini是否已经打开了curl扩展<?php$ch = curl_init();$timeout = 5;curl_setopt ($ch, CURLOPT_URL, 'http://www.domain.com/');curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1);curl_setopt ($ch, CURLOPT_CONNECTTIMEOUT, $timeout);$file_contents = curl_exec($ch);curl_close($ch);echo $file_contents;?>

MySql类 MySql类<?php/***mysql数据库类leninx 2013.5*/class DbMysql{public $link;public $result;function __construct(){}/**连接数据库*/public function connect($dbname,$dbpassword,$dbdatabase,$dbhost='localhost',$dbcharset='UTF8'){if(!$this->link) {$this->link = mysql_connect($dbhost, $dbname, $dbpassword) or die(mysql_error());$dbVersion = mysql_get_server_info($this->link);//设置字符集mysql_set_charset($dbcharset,$this->link) or die("can not set charset");if($dbVersion >'5.0.1'){mysql_query("SET sql_mode=''",$this->link);mysql_query("SET character_set_connection=".$dbcharset.", character_set_results=".$dbcharset.", character_set_client=binary", $this->link);//为了防止采集等需要较长运行时间的程序超时，在运行这类程序时设置系统等待和交互时间// @mysql_query("SET interactive_timeout=3600, wait_timeout=3600 ;",$link);}mysql_select_db($dbdatabase, $this->link) or die("can not select datebase");}return $this->link;}/**执行查询*/public function query($sql){if(!$this->link ) return false;if($this->result) {$this->free();}if($this->result = mysql_query($sql, $this->link)) {return $this->result;//return $this;}else{return false;}}/**执行查询２*/public function queryd($sql){return mysql_query($sql,$this->link);}/*执行写入语句*/public function execute($sql){if(!$this->link ) return false;if($this->result) {$this->free();}$result = mysql_query($sql, $this->link);if($result == false) {trigger_error('MySQL execute error: ' . mysql_error() . ' ['.$sql.']');}}/**取得所有数据*/public function fetchAll($result_type = MYSQL_ASSOC){$data = null;//$query = $this->query($sql);while($row = mysql_fetch_array($this->result, $result_type)){$data[] = $row;}mysql_data_seek($this->result, 0);// 移动内部结果的指针从0行开始。//mysql_free_result($result);return $data;}/*取得一行数据*/public function fetchArray($type=MYSQL_ASSOC){return mysql_fetch_array($this->result,$type);}/**取得一行另一种用法，在递归时用等*/public function fetchRow($result,$type=MYSQL_ASSOC){return mysql_fetch_array($result,$type);}/**对象形式取得一行数据*/public function fetchObject(){return mysql_fetch_object($this->result);}/**返回记录行数*/public function numRows(){return mysql_num_rows($this->result);}/**上一次操作的影响数*/public function affectedRows(){return mysql_affected_rows($this->link);}/*取得最后一次插入记录的ID值@return int 返回最后一次插入记录的ID值*/public function insertId(){return ($id = mysql_insert_id($this->link)) >= 0 ? $id : mysql_result($this->query("SELECT last_insert_id()"), 0);}/**获取错误信息*/public function error(){return (($this->link) ? mysql_error($this->link) : mysql_error());}/**获取错误代码*/public function errno(){return intval(($this->link) ? mysql_errno($this->link) : mysql_errno());}/**释放结果集*/public function free(){mysql_free_result($this->result);}/**转义字符*/public function escape($str){return mysql_real_escape_string($str,$this->link);}/**关闭数据库连接*/public function close(){return @mysql_close($this->link);}/**析构*/function __destruct(){$this->free();$this->close();}}?>

超强php验证码升级版 超强php验证码升级版识别难度更大<?php function getCode($length = 32, $mode = 0) { switch ($mode) { case '1' : $str = '123456789'; break; case '2' : $str = 'abcdefghijklmnopqrstuvwxyz'; break; case '3' : $str = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'; break; case '4' : $str = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz'; break; case '5' : $str = 'ABCDEFGHIJKLMNPQRSTUVWXYZ123456789'; break; case '6' : $str = 'abcdefghijklmnopqrstuvwxyz1234567890'; break; case '7' ://中文验证码 break; default : $str = 'ABCDEFGHIJKLMNPQRSTUVWXYZabcdefghijkmnpqrstuvwxyz23456789'; break; } $result = ''; for($i = 0; $i < $length; $i ++) { if ($mode == 7) { $str [$i] = chr ( mt_rand ( 176, 215 ) ) . chr ( mt_rand ( 161, 249 ) ); $str [$i] = iconv ( "GB2312", "UTF-8", $str [$i] ); //imagettftext是utf-8的,所以先转换下 $result .= $str [$i]; } else { $l = strlen ( $str ) - 1; $num = mt_rand ( 0, $l ); $result .= $str [$num]; } } return $result; } //建立验证图片 function createAuthNumImg($randStr, $fontName, $imgW = 100, $imgH = 40) { header ( "content-type: image/png" ); $image = imagecreate ( $imgW, $imgH ); $fontSize = mt_rand(17,20);//字号 //$green = imagecolorallocate($image,0x6b,0xc1,0x46); $gray = imagecolorallocate ( $image, 255, 255, 255 ); //灰色 $red = imagecolorallocate ( $image, 255, 102, 204 );//粉色 $blue = imagecolorallocate($image,0x53,0x68,0xbd); $colors = array($red, $gray, $blue); $color_b = imagecolorallocate ( $image, 0, 0, 0 ); //黑色 $color_d = imagecolorallocate ( $image,98,178, 28 ); //绿色 $color_e = imagecolorallocate ( $image,38,98, 223 ); //蓝色 $color_c = imagecolorallocate ( $image,255,0, 0 ); //红色 $color_f = imagecolorallocate ( $image,128,0, 255 ); //紫色 $color_g = imagecolorallocate ( $image,0,128, 128 ); // $color = array($color_b, $color_c, $color_d,$color_e); shuffle($color); $colorrnd=imagecolorallocate ( $image,mt_rand(0,255),mt_rand(0,255), mt_rand(0,255) ); for($i = 0; $i < 1000; $i ++) { //绘背景干扰点 //imagesetpixel ( $image, mt_rand ( 0, $imgW ), mt_rand ( 0, $imgH ), $colors[rand(0,count($colors)-1)]); } imagerectangle ( $image, 0, 0, $imgW - 1, $imgH - 1, $color_b );//绘制边框 $str1=substr($randStr,0,1); $str2=substr($randStr,1,1); $str3=substr($randStr,2,1); $str4=substr($randStr,3,1); $range=mt_rand(-20,20); //imagettftext ( $image, $fontSize, 5, 3, 25, $color_b, $fontName, $randStr);///将验证字符绘入图片 字符旋转 for($i=1;$i<=4;$i++) { $p=$i-1; $str=$randStr["$p"]; //imagettftext ( $image, mt_rand(17,20), mt_rand(-20,20), $i*12, mt_rand(20,25), $color[mt_rand(0,count($color)-1)], $fontName, $str);///将验证字符绘入图片 字符旋转 imagettftext ( $image, mt_rand(17,20), mt_rand(-20,20), $i*12, mt_rand(20,25), $color[$i-1], $fontName, $str);///将验证字符绘入图片 字符旋转 } //imagettftext ( $image, mt_rand(17,20), mt_rand(-20,20), mt_rand(2,5), mt_rand(20,25), $color_b, $fontName, $str1);///将验证字符绘入图片 字符旋转 //imagettftext ( $image, mt_rand(17,20), mt_rand(-20,20), mt_rand(16,18), mt_rand(20,25), $color_c, $fontName, $str2);///将验证字符绘入图片 字符旋转 //imagettftext ( $image, mt_rand(17,20), mt_rand(-20,20), mt_rand(28,30), mt_rand(20,25), $color_d, $fontName, $str3);///将验证字符绘入图片 字符旋转 //imagettftext ( $image, mt_rand(17,20), mt_rand(-20,20), mt_rand(36,38), mt_rand(20,25), $color_e, $fontName, $str4);///将验证字符绘入图片 字符旋转 for($i=0; $i<4; $i++){ //绘背景干扰线 //imageline($image, mt_rand(0,5), mt_rand(6,18), mt_rand(65,$imgW), mt_rand(6,$imgH), $colorrnd);//一条干扰线 $h=30; $h1=rand(-5,5); $h2=rand(-1,1); $w2=rand(10,15); $h3=rand(4,6); $w=75; for($i=-$w/2;$i<$w/2;$i=$i+0.1) { $y=$h/$h3*sin($i/$w2)+$h/2+$h1; imagesetpixel($image,$i+$w/2,$y,$color[$p]); $h2!=0?imagesetpixel($image,$i+$w/2,$y+$h2,$color[$p]):null; } } imagepng ( $image ); imagedestroy ( $image ); } session_start (); $verifyCode = GetCode ( 4 ); $_SESSION ['VERIFY_CODE'] = $verifyCode ; createAuthNumImg ( $verifyCode, "font.ttf", 75, 30); //字体存放路径,如果你没有文件就去C:\WINDOWS\Fonts文件中找一个吧。 /** 问答模式 $a=GetCode(2,1); $b=GetCode(1,1); $passPort = $a."+".$b."=?"; $verifyCode = $a+$b; $_SESSION ['VERIFY_CODE'] = $verifyCode ; createAuthNumImg ( $passPort, "font.ttf", 75, 30); */ ?>