php图片上传类

class upload_class{
private $ptname;    //上传表单名称;
private $udname;    //是否以月份建立子目录(0为否,其他为真);
private $ufname;    //是否以时间建立文件名(0为否,其他为真);
private $ultype;    //上传文件类型;
private $ulsize;    //上传文件大小;
private $ulname;    //输出文件名称;
private $ulpath;    //输出文件路径;
private $wm;     //水印附加(0为不加,其他为加);
private $wmtype;    //水印类型(0为文字,其他为图片);
private $wmpic;     //水印图片;
private $wmpicquality;   //图片质量;
private $wmpictrans;   //图片透明;
private $wmstr;     //水印字符;
private $wmstrsize;    //字符大小;
private $wmstrfont;    //字符字体;
private $wmstrcolor;   //字符颜色;
private $wmpos;     //水印位置(1为顶端居左,2为顶端居中,3为顶端居右……);
function __construct($ptname='upfile',$udname=1,$ufname=1,$ultype=array('image/jpg','image/jpeg','image/png','image/pjpeg','image/gif','image/bmp','image/x-png'),$wm=1,$wmtype=1,$wmpic='images/wm.gif',$ulsize=2097152,$ulpath='images/temp/',$wmpictrans=20,$wmpicquality=80,$wmstr='DONLINE',$wmstrsize=5,$wmstrfont='./font/cour.ttf',$wmstrcolor='#ff0000',$wmpos=9){
  $this->ptname=$_FILES[$ptname];
  $this->udname=$udname;
  $this->ufname=$ufname;
  $this->ultype=$ultype;
  $this->ulsize=$ulsize;
  $this->ulpath=$ulpath;
  $this->wm=$wm;
  $this->wmtype=$wmtype;
  $this->wmpic=$wmpic;
  $this->wmpicquality=$wmpicquality;
  $this->wmpictrans=$wmpictrans;
  $this->wmstr=$wmstr;
  $this->wmstrsize=$wmstrsize;
  $this->wmstrfont=$wmstrfont;
  $this->wmstrcolor=$wmstrcolor;
  $this->wmpos=$wmpos;
}
function uploadfun(){
  if($_SERVER['REQUEST_METHOD']=='POST'){
   if(!is_uploaded_file($this->ptname['tmp_name']))$this->errorfun('上传失败！');
   if(!in_array($this->ptname['type'],$this->ultype))$this->errorfun('不支持的文件类型！');
   if($this->ulsize<$this->ptname['size'])$this->errorfun('文件太大！');
   if($this->udname){date_default_timezone_set('UTC');$this->ulpath=$this->ulpath.'month_'.date('Ym').'/';}
   else{$this->ulpath=$this->ulpath;}
   $this->createfun($this->ulpath);
   if($this->ufname){$t=pathinfo($this->ptname['name']);$this->ulname=$this->ulpath.time().'.'.$t['extension'];}
   else{$this->ulname=$this->ulpath.$this->ptname['name'];}
   if(file_exists($this->ulname))$this->errorfun('该文件已存在！');
   if(!move_uploaded_file($this->ptname['tmp_name'],$this->ulname))$this->errorfun('移动文件错误！');
   $this->wmfun();
   $this->errorfun('上传成功！');
  }
}
function createfun($d){
  if(!file_exists($d)){$this->createfun(dirname($d));mkdir($d);}
}
function wmfun(){
  if($this->wm){
   if(file_exists($this->ulname)){
    $groundimg=getimagesize($this->ulname);
    $ow=$groundimg[0];
    $oh=$groundimg[1];
    switch($groundimg[2]){
     case 1:$g=imagecreatefromgif($this->ulname);break;
     case 2:$g=imagecreatefromjpeg($this->ulname);break;
     case 3:$g=imagecreatefrompng($this->ulname);break;
     case 4:$g=imagecreatefromwbmp($this->ulname);break;
     default:$this->errorfun('不支持的背景图片类型！');
    }
   }
   else{$this->errorfun('背景图片不存在！');}
   if(file_exists($this->wmpic)){
    $wmimg=getimagesize($this->wmpic);
    $ww=$wmimg[0];
    $wh=$wmimg[1];
    switch($wmimg[2]){
     case 1:$w=imagecreatefromgif($this->wmpic);break;
     case 2:$w=imagecreatefromjpeg($this->wmpic);break;
     case 3:$w=imagecreatefrompng($this->wmpic);break;
     case 4:$w=imagecreatefromwbmp($this->wmpic);break;
     default:$this->errorfun('不支持的水印图片类型！');
    }
   }
   else{$this->errorfun('水印图片不存在！');}
   switch($this->wmtype){
    case 0:$tp=imagettfbbox(ceil($this->wmstrsize*2.5),0,$this->wmstrfont,$this->wmstr);$ww=$tp[2]-$tp[6];$wh=$tp[3]-$tp[7];unset($tp);break;
    case 1:$ww=$ww;$wh=$wh;break;
    default:$ww=$ww;$wh=$wh;break;
   }
   if($ow<$ww || $oh<$wh)$this->errorfun('背景图片太小！无法生成水印！');
   switch($this->wmpos){  
    case 0:$x=rand(0,($ow-$ww));$y=rand(0,($oh-$wh));break;//随机
          case 1:$x=0;$y=0;break;//1为顶端居左     
          case 2:$x=($ow-$ww)/2;$y=0;break;//2为顶端居中     
          case 3:$x=$ow-$ww;$y=0;break;//3为顶端居右     
          case 4:$x=0;$y=($oh-$wh)/2;break;//4为中部居左     
          case 5:$x=($ow-$ww)/2;$y=($oh-$wh)/2;break;//5为中部居中   
          case 6:$x=$ow-$ww;$y=($oh-$wh)/2;break;//6为中部居右     
          case 7:$x=0;$y=$oh-$wh;break;//7为底端居左  
          case 8:$x=($ow-$ww)/2;$y=$oh-$wh;break;//8为底端居中     
          case 9:$x=$ow-$ww;$y=$oh-$wh;break;//9为底端居右     
          default:$x=rand(0,($ow-$ww));$y=rand(0,($oh-$wh));break;//随机         
      }
   imagealphablending($g, true);
   switch($this->wmtype){
    case 0:
    if($this->wmstrcolor){$R=hexdec(substr($this->wmstrcolor,1,2));$G=hexdec(substr($this->wmstrcolor,3,2));$B=hexdec(substr($this->wmstrcolor,5));}
    else{$this->errorfun('水印文字颜色不存在！');}
    imagestring($g,$this->wmstrfont,$x,$y,$this->wmstr,imagecolorallocate($g,$R,$G,$B));break;
    case 1;imagecopymerge($g,$w,$x,$y,0,0,$ww,$wh,$this->wmpictrans);break;
    default:imagecopymerge($g,$w,$x,$y,0,0,$ww,$wh,$this->wmpictrans);break;
   }
   @unlink($this->ulname);
   switch($groundimg[2]){
          case 1:imagegif($g,$this->ulname);break;
          case 2:imagejpeg($g,$this->ulname,$this->wmpicquality);break;
          case 3:imagepng($g,$this->ulname);break;
    case 4:imagewbmp($g,$this->ulname);break;
          default:$this->errorfun('生成图片失败！');
   }
   if(isset($wmimg))unset($wmimg);
      if(isset($w))imagedestroy($w);
      unset($groundimg);
      imagedestroy($g);
  }
}
function errorfun($e='未知错误！'){
  $msg='<script language="javascript" type="text/javascript">';
  $msg.='alert("'.$e.'");';
  $msg.='history.back();';
  $msg.='</script>';
  echo $msg;
  exit;
}
}
?>

第二步. 把$img_array 数组循环一下. 做图片保存和文章位置替换

class tree
{
 /**
 * 生成树型结构所需要的2维数组
 * @var array
 */
 var $arr = array();

 /**
 * 生成树型结构所需修饰符号，可以换成图片
 * @var array
 */
 var $icon = array('│','├','└');

 /**
 * @access private
 */
 var $ret = '';

 /**
 * 构造函数，初始化类
 * @param array 2维数组，例如：
 * array(
 *      1 => array('id'=>'1','parentid'=>0,'name'=>'一级栏目一'),
 *      2 => array('id'=>'2','parentid'=>0,'name'=>'一级栏目二'),
 *      3 => array('id'=>'3','parentid'=>1,'name'=>'二级栏目一'),
 *      4 => array('id'=>'4','parentid'=>1,'name'=>'二级栏目二'),
 *      5 => array('id'=>'5','parentid'=>2,'name'=>'二级栏目三'),
 *      6 => array('id'=>'6','parentid'=>3,'name'=>'三级栏目一'),
 *      7 => array('id'=>'7','parentid'=>3,'name'=>'三级栏目二')
 *      )
 */
 function tree($arr=array())
 {
       $this->arr = $arr;
    $this->ret = '';
    return is_array($arr);
 }

    /**
 * 得到父级数组
 * @param int
 * @return array
 */
 function get_parent($myid)
 {
  $newarr = array();
  if(!isset($this->arr[$myid])) return false;
  $pid = $this->arr[$myid]['parentid'];
  $pid = $this->arr[$pid]['parentid'];
  if(is_array($this->arr))
  {
   foreach($this->arr as $id => $a)
   {
    if($a['parentid'] == $pid) $newarr[$id] = $a;
   }
  }
  return $newarr;
 }

    /**
 * 得到子级数组
 * @param int
 * @return array
 */
 function get_child($myid)
 {
  $a = $newarr = array();
  if(is_array($this->arr))
  {
   foreach($this->arr as $id => $a)
   {
    if($a['parentid'] == $myid) $newarr[$id] = $a;
   }
  }
  return $newarr ? $newarr : false;
 }

    /**
 * 得到当前位置数组
 * @param int
 * @return array
 */
 function get_pos($myid,&$newarr)
 {
  $a = array();
  if(!isset($this->arr[$myid])) return false;
        $newarr[] = $this->arr[$myid];
  $pid = $this->arr[$myid]['parentid'];
  if(isset($this->arr[$pid]))
  {
      $this->get_pos($pid,$newarr);
  }
  if(is_array($newarr))
  {
   krsort($newarr);
   foreach($newarr as $v)
   {
    $a[$v['id']] = $v;
   }
  }
  return $a;
 }

    /**
 * 得到树型结构
 * @param int ID，表示获得这个ID下的所有子级
 * @param string 生成树型结构的基本代码，例如："<option value=$id $selected>$spacer$name</option>"
 * @param int 被选中的ID，比如在做树型下拉框的时候需要用到
 * @return string
 */
 function get_tree($myid, $str, $sid = 0, $adds = '', $str_group = '')
 {
  $number=1;
  $child = $this->get_child($myid);
  if(is_array($child))
  {
      $total = count($child);
   foreach($child as $id=>$a)
   {
    $j=$k='';
    if($number==$total)
    {
     $j .= $this->icon[2];
    }
    else
    {
     $j .= $this->icon[1];
     $k = $adds ? $this->icon[0] : '';
    }
    $spacer = $adds ? $adds.$j : '';
    $selected = $id==$sid ? 'selected' : '';
    @extract($a);
    $parentid == 0 && $str_group ? eval("$nstr = "$str_group";") : eval("$nstr = "$str";");
    $this->ret .= $nstr;
    $this->get_tree($id, $str, $sid, $adds.$k.'&nbsp;',$str_group);
    $number++;
   }
  }
  return $this->ret;
 }
    /**
 * 同上一方法类似,但允许多选
 */
 function get_tree_multi($myid, $str, $sid = 0, $adds = '')
 {
  $number=1;
  $child = $this->get_child($myid);
  if(is_array($child))
  {
      $total = count($child);
   foreach($child as $id=>$a)
   {
    $j=$k='';
    if($number==$total)
    {
     $j .= $this->icon[2];
    }
    else
    {
     $j .= $this->icon[1];
     $k = $adds ? $this->icon[0] : '';
    }
    $spacer = $adds ? $adds.$j : '';
    
    $selected = $this->have($sid,$id) ? 'selected' : '';
    //echo $sid.'=>'.$id.' : '.$selected.' . <br/>';
    @extract($a);
    eval("$nstr = "$str";");
    $this->ret .= $nstr;
    $this->get_tree_multi($id, $str, $sid, $adds.$k.'&nbsp;');
    $number++;
   }
  }
  return $this->ret;
 }
 
 function have($list,$item){
  return(strpos(',,'.$list.',',','.$item.','));
 }
}

这个文件上传类可以上传gif",".jpg",".jar",".jad",".mid",".mp3",".mid",".bmp",".wav",".rm",".wmv文件格式哦，如果你还想支持其它的话可以设计$this->file_type();就OK了，。

<?php
class upload{

var $file_type;
var $file_size;
var $file_name;
var $exname;
var $datetime;

function up($post_name,$path){
 $this->file_name=$_FILES[$post_name]["name"];
 $this->exname=strtolower(substr($this->file_name,strrpos($this->file_name,".")));
 $this->file_size=$_FILES[$post_name]["size"];
 $this->file_type=array(".gif",".jpg",".jar",".jad",".mid",".mp3",".mid",".bmp",".wav",".rm",".wmv");
 $this->datetime=date("YmdHis");
 if(!in_array($this->exname,$this->file_type)){
  print("<script language='javascript'>");
  print("alert('格式不支持！');");
  print("history.back();");
  print("</script>");
  break;
 }elseif($this->file_size>"50000"){
  print("<script language='javascript'>");
  print("alert('图片大小不能超过50KB！');");
  print("history.back();");
  print("</script>");
  break;
 }else{
  move_uploaded_file($_FILES[$post_name]["tmp_name"],$path.$this->datetime.$this->exname);
  }
}

function fileName(){
   $pic=$this->datetime.$this->exname;
   return $pic;
}

}
?>
 

本文章提供一款功能全面的获取上一级页面的函数哦，就是来路函数了。

function getref(&$ref,&$fullref) {
  global $err,$conf,$HTTP_GET_VARS,$_GET;

  if(isset($_GET['anr'])) $refer=$_GET['anr'];
  elseif(isset($HTTP_GET_VARS['anr'])) $refer=$HTTP_GET_VARS['anr'];
  else $refer='undefined';
  if(empty($refer)) $refer='undefined';
  if(!strcmp($refer,'null')) $refer='undefined';
  $refer=urldecode($refer);
  $refer=modsec($refer);
  $refer=txtproc($refer);

  //to correct back slashes            http://111cn.netindex
  $refer=str_replace("\","/",$refer);
  //to remove unnecessary points       http://111cn.net.
  $refer=preg_replace("//./",'/',$refer);
  $refer=preg_replace("/.//",'/',$refer);
  $refer=preg_replace("/.*$/",'',$refer);
  $refer=preg_replace("/("|')*$/",'',$refer);
  //to remove unnecessary duplicates of slashes             http://111cn.net///
  $refer=preg_replace("/([^:])(/)+/",'$1/',$refer);
  $fullref=$refer;

  $refer=preg_replace("/^(https?://)(www.)?/i",'',$refer);
  $ref=preg_replace("/[?|&|#|;].*$/i",'',$refer);
  $ref=preg_replace("/(/)*$/",'',$ref);
  $ref=trim($ref);
  $ref=preg_replace("/.*$/",'',$ref);
  $ref=preg_replace("/("|')*$/",'',$ref);
  $ref=trim($ref);

  //check referrer (bad)
  if(empty($ref)) $ref='undefined';
  //search "." in domain name
  if(!preg_match("/^([^./]+.)+([^./])+/i",$ref))  $ref='undefined';
}

}