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实例简单php图片上传类

 更新时间：2016年11月25日 15:58  点击：1669

class Uploadimg{
 private $_fileName="";         //文件域名称 如 'userfile'
 private $_uploadDir = '';       //上传路径 如 ./upload/
 
 /*上传参数配置*/
 private $_config = array(
  'type'=>array('image/jpeg','image/jpg',
    'image/pjpeg','image/gif'),         //上传的类型
  'size'=>1,                     //文件最大容量单位是M
  'width'=>1000,                   //图片的最大宽度
  'height'=>800                   //图片的最大高度
 );
 
 /**
  * 构造函数
  *
  * @param string $fileName
  * @param string $uploadDir
  * @param array $config
  */
 function __construct($fileName,$uploadDir,$config='')
 {
  $this->_fileName = $fileName;
  $this->_uploadDir = $uploadDir;
  if($config == "" or empty($config) or !is_array($config)){
   $this->_config = $this->_config;
  }else{
   $this->_config = $config;
  }
 }
 
 /**
  * 检测容量是否超过
  *
  * @return boolean
  */
 function checkSize()
 {
  if($_FILES[$this->_fileName]['size'] > $this->_config['size']*1024*1024){
   return false;
  }else{
   return true;
  } 
 }
 
 /**
  * 获取图片信息
  *
  * @return boolean
  */
 function getInfo()
 {
  return @getimagesize($_FILES[$this->_fileName]['tmp_name']);
 }
 
 /**
  * 检测后缀名
  *
  * @return boolean
  */
 function checkExt()
 {
  $imageInfo = $this->getInfo();
  if(in_array($imageInfo['mime'],$this->_config['type'])){
   return true;
  }else{
   return false;
  }
 }
 
 /**
  * 获取后缀名
  *
  * @return boolean
  */
 function getExt()
 {
  $imageInfo = $this->getInfo();
  switch($imageInfo['mime']){
   case 'image/jpeg':$filenameExt = '.jpg';break;
   case 'image/jpg':$filenameExt = '.jpg';break;
   case 'image/pjpeg':$filenameExt = '.jpg';break;
   case 'image/gif':$filenameExt = '.gif';break;
   default:break;
  }
  return $filenameExt;  
 }
 
 /**
  * 检测尺寸
  *
  * @return boolean
  */
 function checkWh()
 {
  $imageInfo = $this->getInfo();
  if(($imageInfo[0] > $this->_config['width']) or ($imageInfo[1] > $this->_config['height'])){
   return false;
  }else{
   return true;
  }
 }
 
 /**
  * 上传一张图片
  *
  * @return string or int
  */
 function uploadSingleImage()
 {
  if($this->checkSize() == false){
   return (-3); /*上传容量过大*/
   exit();
  }  
  if($this->checkExt() == true){
   $filenameExt = $this->getExt();
  }else{
   return (-2);  /*上传格式错误*/
   exit();
  }
  if($this->checkWh() == false){
   return (-1);  /*上传图片太宽或太高*/
   exit();
  }
  $file_new_name = date('YmdHis').$filenameExt;
  $file_new_name_upload = rtrim($_SERVER['DOCUMENT_ROOT'],'/').$this->_uploadDir.$file_new_name;
  if(@move_uploaded_file($_FILES[$this->_fileName]['tmp_name'],$file_new_name_upload)){
   return $file_new_name;
  }else{
   return (0); /*上传失败*/
  } 
 }
 
 /**
  * 删除图片
  *
  * @param string $imageName
  * @return boolen
  */
 function delImage($imageName)
 {
  $path = rtrim($_SERVER['DOCUMENT_ROOT'],'/').$this->_uploadDir.$imageName;
  if(unlink($path) == true){
   return true;
  }else{
   return false;
  }
 }
}

<?php
$action = $_GET['action'];
require_once('auc.main.class.inc.php');

$auc = new auc();

if ($action == 'uploadfile') {
 $auc = new auc();
 
 $result = $auc->upload("file");
 if (is_array($result)) {
  echo 'Something Went Wrong';
  echo '<pre>';
  var_dump($result);
  echo '</pre>';
 } else {
  echo 'All OK';
 }
} else {
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<title>advanced Upload Class - Demo</title>
</head>
<body>
<form action="auc.demo.php?action=uploadfile" method="post" enctype="multipart/form-data">
  <input name="file[]" type="file" /><br />
  <input name="file[]" type="file" /><br />
  <input name="upload" type="submit" value="Upload File" />
</form>
</body>
</html>
<?php  } ?>

类文件

<?php

class auc {
 public $errors = array(); //array used to store any errors that occur.
 public $upload_dir = ''; //the upload_dir being used by the script
 public $make_safe = false; //default don't modify the file name to safe version
 public $max_file_size = 1048576; //Max File Size in Bytes, 1MB
 public $overwrite = false; //default don't overwrite files that already exsist
 public $check_file_type = false; //don't check for file type by default but can check for allowed and denied files.
 public $allowed_mime_types = array('image/jpeg', 'image/png', 'image/gif', 'image/tiff'); //array of allowed mime types used when check_file_type is set to allowed
 public $denied_mime_types = array('application/x-php', 'text/html'); //array of denied mime types used when check_file_type is set to denied
 
 /**
  * Check if the upload dir is valid, if it is not valid attempt to make the dir, if dir is succesfully created chmod it to 0777.
  * If any elments fail return false else set upload_dir and return true.
  * @param string $dir
  * @param boolean $mkdir
  * @return true or false
  */
 public function upload_dir($dir, $mkdir = false) {
  $errors =& $this->errors;
  $status = true;
  
  if (!is_dir($dir)) {
   if ($mkdir) {
    if (!mkdir($dir)) {
     $status = false;
    } else {
     if (!chmod($dir, 0777)) $status = false;
    }
   } else {
    $status = false;
   }
  }
  
  if ($status) {
   $this->upload_dir = $dir;
   return true;
  } else {
   $errors['general'][] = 'Upload Dir is Not Valid and/or a dir could not be created/chmod.';
   return false;
  }
 }
 
 /**
  * check that the upload dir is valid and that it is writeable
  *
  * @param string $dir
  * @return true or false
  */
 public function check_dir($dir) {
  if (!is_dir($dir) || !is_writable($dir)) return false;
  
  return true;
 }
 

 /**
  * make the uploaded file name safe
  *
  * @param string $file_name
  * @return safe file name
  */
 public function make_safe($file_name) {
  return str_replace(' ', '_', $file_name);
 }
  
 /**
  * Check the Attemted Uploads for errors etc if everything goes good move the file, to the upload_dir.
  *
  * @param array $object
  * @return unknown
  */
 public function upload($object) {
  $errors =& $this->errors;
  
  if (empty($errors['general'])) {
   if (empty($this->upload_dir)) $this->upload_dir = dirname(__FILE__).'/'; //if no default upload_dir has been specified used the current dir.
     
   if ($this->check_dir($this->upload_dir)) {
    $files = $_FILES[$object];
    $count = count($files['name']) - 1;
    
    echo '<pre>';
    var_dump($files);
    echo '</pre>';
    
    for ($current = 0; $current <= $count; $current++) {
     $error = '';
     try {
      //check for $_FILES Errors
      switch ($files['error'][$current]) {
       case 0 : break;
       case 1 : $error = $files['name'][$current].' exceeds the upload_max_filesize directive in php.ini'; break;
       case 2 : $error = $files['name'][$current].' exceeds the MAX_FILE_SIZE directive that was specified in the HTML form'; break;
       case 3 : $error = $files['name'][$current].' was only partially uploaded'; break;
       case 4 : $error = 'No file was uploaded'; break;
       case 6 : $error = 'Missing a temporary folder'; break;
       case 7 : $error = 'Failed to write '.$files['name'][$current].' to disk'; break;
       case 8 : $error = $files['name'][$current].' stopped by extension'; break;
       default : $error = 'Unidentified Error, caused by '.$files['name'][$current]; break;
      }
      if ($error)
       throw new TrigerErrorException($error, $files['name'][$current]);
      
      //check that the file is not empty
      if ($files['size'][$current] <= 0)
       throw new TrigerErrorException($files['name'][$current].' is empty', $files['name'][$current]);
      
      //check that the file does not exceed the defined max_file_size
      if ($this->max_file_size) {
       if ($files['size'][$current] >= $this->max_file_size)
        throw new TrigerErrorException($files['name'][$current].' exceeds defined max_file_size', $files['name'][$current]);
      }
      
      if ($this->check_file_type == 'allowed' && !in_array($files['type'][$current], $this->allowed_mime_types)) {
       throw new TrigerErrorException($files['name'][$current].' is not an allowed type', $files['name'][$current]);
      } elseif ($this->check_file_type == 'denied' && in_array($files['type'][$current], $this->denied_mime_types)) {
       throw new TrigerErrorException($files['name'][$current].' is a denied type', $files['name'][$current]);
      }
      
      //if make_safe is true call make safe function  
      if ($this->make_safe)
       $files['name'][$current] = $this->make_safe($files['name'][$current]);
      
      //if overwrite is false and the file exists error
      if (!$this->overwrite && file_exists($this->upload_dir.$files['name'][$current]))
       throw new TrigerErrorException($files['name'][$current].' already exsists', $files['name'][$current]);
       
      //move the uploaded file, error if anything goes wrong.
      if (!move_uploaded_file($files['tmp_name'][$current], $this->upload_dir.$files['name'][$current]))
       throw new TrigerErrorException($files['name'][$current].' could not be moved', $files['name'][$current]);
     } catch (TrigerErrorException $e) {
      $errors[$files['name'][$current]][] = $e->Message();
     }
    }
    
    if (empty($errors)) {
     //return true if there where no errors
     return true;
    } else {
     //return the errors array if there where any errros
     return $errors;
    }
   } else {
    //return false as dir is not valid
    $errors['general'][] = "The Specified Dir is Not Valid or is Not Writeable";
    return false;
   }
  }
 } 
}

/**
 * Handle the Exceptions trigered by errors within upload code.
 *
 */
class TrigerErrorException extends Exception {
 protected $file = "";
 public function __construct($message, $file = "", $code = 0) {
  $this->file = $file;
     parent::__construct($message, $code);
 }

   public function Message() {
  return "{$this->message}";
    }
}
?>

class Trees{
 private $_keyId = 'Id';
 private $_keyName = 'Name';
 private $_keyFid = 'Fid';
 
 function __construct($keyId='',$keyName='',$keyFid='')
 {
  if($keyId==""){$this->_keyId = $this->_keyId;}else{$this->_keyId = $keyId;}
  if($keyName==""){$this->_keyName = $this->_keyName;}else{$this->_keyName = $keyName;}
  if($keyFid==""){$this->_keyFid = $this->_keyFid;}else{$this->_keyFid = $keyFid;}
 }
 
 public function treeListAll($fid,$step=0,&$fromArray,&$resultArray)
 {
  $step++;
  foreach ($fromArray as $k=>$v){
   if($v[$this->_keyFid] == $fid){
    $newArray[] = $v;
   }
  }
  if(isset($newArray)){
   foreach ($newArray as $k=>$v){
    $this->treeListAll($v[$this->_keyId],$step,$fromArray,$resultArray);
    $v['Step'] = $step;
    $resultArray[] = $v;
   }
  }
 }
 
 public function getTreeListAll($fid=0,$step=0,&$fromArray,&$resultArray)
 {
  $step++;
  foreach ($fromArray as $k=>$v){
   if($v[$this->_keyFid] == $fid){
    $newArray[] = $v;
   }
  }
  if(isset($newArray)){
   foreach ($newArray as $k=>$v){
    $this->getTreeListAll($v[$this->_keyId],$step,$fromArray,$resultArray);
    $v['Step'] = $step;
    $resultArray[] = $v;
   }
  }  
 }
 
 public function getTreeList($id = 0,&$fromArray)
 {
  $resultArray = array();
  $this->getTreeListAll($id,0,$fromArray,$resultArray);
  $resultArray = array_reverse($resultArray);
  return $resultArray;
 }
 
 public function getTreeArray($id = 0,&$fromArray)
 {
  $result_one_array = $this->getTreeList($id,$fromArray);
  foreach ($result_one_array as $k=>$v){
   $result_two_array[] = array($v[$this->_keyId]);
  }
  if(isset($result_two_array)){
  for ($i=0;$i<count($result_two_array);$i++){
   for ($j=0;$j<count($result_two_array[$i]);$j++){
    $result[] = $result_two_array[$i][$j];
   }
  }
  }else{
   $result = array();
  }
  return $result;
 }

 public function treeListAllTop($fid,$step=0,&$fromArray,&$resultArray)
 {
  $step++;
  foreach ($fromArray as $k=>$v){
   if($v[$this->_keyId] == $fid){
    $newArray[] = $v;
   }
  }
  if(isset($newArray)){
   foreach ($newArray as $k=>$v){
    $this->treeListAllTop($v[$this->_keyFid],$step,$fromArray,$resultArray);
    $v['Step'] = $step;
    $resultArray[] = $v;
   }
  }
 }
 
 public function getTreeListAllTop($fid=0,$step=0,&$fromArray,&$resultArray)
 {
  $step++;
  foreach ($fromArray as $k=>$v){
   if($v[$this->_keyId] == $fid){
    $newArray[] = $v;
   }
  }
  if(isset($newArray)){
   foreach ($newArray as $k=>$v){
    $this->getTreeListAllTop($v[$this->_keyFid],$step,$fromArray,$resultArray);
    $v['Step'] = $step;
    $resultArray[] = $v;
   }
  }  
 }
 
 public function getTreeListTop($id = 0,&$fromArray)
 {
  $resultArray = array();
  $this->getTreeListAllTop($id,0,$fromArray,$resultArray);
  $resultArray = array_reverse($resultArray);
  return $resultArray;
 }
 
 public function getTreeArrayTop($id = 0,&$fromArray)
 {
  $result_one_array = $this->getTreeListTop($id,$fromArray);
  foreach ($result_one_array as $k=>$v){
   $result_two_array[] = array($v[$this->_keyFid]);
  }
  if(isset($result_two_array)){
  for ($i=0;$i<count($result_two_array);$i++){
   for ($j=0;$j<count($result_two_array[$i]);$j++){
    $result[] = $result_two_array[$i][$j];
   }
  }
  }else{
   $result = array();
  }
  return $result;
 }
  
 public function makeOptionString($sourcArray,$firstHint="顶级分类",$selectId=array('-1'),$type=0)
 {
  if($type==0){
   if($firstHint != ""){
    $str = '<option value="0">'.$firstHint.'</option>';
   }else{
    $str = ''; 
   }
   foreach ($sourcArray as $value){
    $level="";
    for($i=1;$i<$value['Step'];$i++){
     $level =$level."----|";
    }
    $selectStr = "";
    if(in_array($value[$this->_keyId],$selectId)){
     $selectStr = "selected";
    }else{
     
    }
    $str.='<option value="'.$value[$this->_keyId].'" '.$selectStr.'>|'.$level.$value[$this->_keyName]."</option>";
    $level="";
   }
  }else{
   $flagStep =-1;
   $str = '<option value="0">'.$firstHint.'</option>';
   foreach ($sourcArray as $value){
    $level="";
    for($i=1;$i<$value['Step'];$i++){
     $level =$level."----|";
    }
    $selectStr = "";
    if($type==$value[$this->_keyId]){
     $flagStep = $value['Step'];
    }else{
     if($flagStep != -1 && $value['Step']>$flagStep){
     
     }else{
      if($flagStep != -1 && $value['Step']<=$flagStep){
       $flagStep = -1;
      }
      if($value[$this->_keyId] == $selectId){
       $selectStr = "selected";
      }
      $str.='<option value="'.$value[$this->_keyId].'" '.$selectStr.'>|'.$level.$value[$this->_keyName]."</option>";
     }
    }
    
    $level="";
   }
  }
  return $str;
 }
}

 
 public function funcStr($str,$num1='',$num2='') //字符正则表达试
 {
  if($num1!='' and $num2!=''){
   return (preg_match("/^[a-zA-Z]{".$num1.",".$num2."}$/",$str))?true:false;
  }else{
   return (preg_match("/^[a-zA-Z]/",$str))?true:false;
  }  
 }
 
 public function funcNum($str,$num1='',$num2='')//数字正则表达试
 {
  if($num1!='' and $num2!=''){
   return (preg_match("/^[0-9]{".$num1.",".$num2."}$/",$str))?true:false;
  }else{
   return (preg_match("/^[0-9]/",$str))?true:false;
  }
 }
 
 public function funcCard($str)//
 {
  return (preg_match('/(^([d]{15}|[d]{18}|[d]{17}x)$)/',$str))?true:false;
 }
 
 public function funcEmail($str)//邮箱正则表达式
 {
  return (preg_match('/^[_.0-9a-z-A-Z-]+@([0-9a-z][0-9a-z-]+.)+[a-z]{2,4}$/',$str))?true:false;
 }
 
 public function funcPhone($str)//电话号码正则表达试
 {
  return (preg_match("/^(((d{3}))|(d{3}-))?((0d{2,3})|0d{2,3}-)?[1-9]d{6,8}$/",$str))?true:false;
 }    
 
 public function funcMtel($str)//手机号码正则表达试
 {
  return (preg_match("/(?:13d{1}|15[03689])d{8}$/",$str))?true:false;
 } 
 
 public function funcZip($str)//邮编正则表达试
 {
  return (preg_match("/^[0-9]d{5}$/",$str))?true:false;
 } 
 
 public function funcUrl($str)//url正则表达试
 {
  return (preg_match("/^http://[A-Za-z0-9]+.[A-Za-z0-9]+[/=?%-&_~`@[]':+!]*([^<>""])*$/",$str))?true:false;
 }  

class Client{
 
 public function __construct()
 {
  /**/
 }
 
 /**
  * 获取浏览器客户端
  *
  * @return string
  */
 public function browser()
 {
  $info = $_SERVER['HTTP_USER_AGENT'];
  if(strstr($info,'MSIE 6.0') != false){
   return 'IE6';
  }elseif (strstr($info,'MSIE 7.0') != false){
   return 'IE7';
  }elseif (strstr($info,'Firefox') != false){
   return 'Firefox';
  }elseif (strstr($info,'Chrome') != false){
   return 'Chrome';
  }elseif (strstr($info,'Safari') != false){
   return 'Safari';         
  }else{
   return 'unknow';
  }
  }
 
     /**
      * 获取操作系统
      * @return string
      */
  public function getOS ()
     {
      $agent = $_SERVER['HTTP_USER_AGENT'];
      $os = false;
      if (eregi('win', $agent) && strpos($agent, '95')){
          $os = 'Windows 95';
      }
      else if (eregi('win 9x', $agent) && strpos($agent, '4.90')){
          $os = 'Windows ME';
      }
      else if (eregi('win', $agent) && ereg('98', $agent)){
         $os = 'Windows 98';
      }
      else if (eregi('win', $agent) && eregi('nt 5.1', $agent)){
          $os = 'Windows XP';
      }
      else if (eregi('win', $agent) && eregi('nt 5', $agent)){
          $os = 'Windows 2000';
      }
      else if (eregi('win', $agent) && eregi('nt', $agent)){
          $os = 'Windows NT';
      }
      else if (eregi('win', $agent) && ereg('32', $agent)){
          $os = 'Windows 32';
      }
      else if (eregi('linux', $agent)){
          $os = 'Linux';
      }
      else if (eregi('unix', $agent)){
          $os = 'Unix';
      }
      else if (eregi('sun', $agent) && eregi('os', $agent)){
          $os = 'SunOS';
      }
      else if (eregi('ibm', $agent) && eregi('os', $agent)){
          $os = 'IBM OS/2';
      }
      else if (eregi('Mac', $agent) && eregi('PC', $agent)){
          $os = 'Macintosh';
      }
      else if (eregi('PowerPC', $agent)){
          $os = 'PowerPC';
      }
      else if (eregi('AIX', $agent)){
          $os = 'AIX';
      }
      else if (eregi('HPUX', $agent)){
          $os = 'HPUX';
      }
      else if (eregi('NetBSD', $agent)){
          $os = 'NetBSD';
      }
      else if (eregi('BSD', $agent)){
          $os = 'BSD';
      }
      else if (ereg('OSF1', $agent)){
          $os = 'OSF1';
      }
      else if (ereg('IRIX', $agent)){
          $os = 'IRIX';
      }
      else if (eregi('FreeBSD', $agent)){
          $os = 'FreeBSD';
      }
      else if (eregi('teleport', $agent)){
          $os = 'teleport';
      }
      else if (eregi('flashget', $agent)){
          $os = 'flashget';
      }
      else if (eregi('webzip', $agent)){
          $os = 'webzip';
      }
      else if (eregi('offline', $agent)){
          $os = 'offline';
      }
      else {
          $os = 'Unknown';
      }
     return $os;
     } 

     /**
      * 获取IP地址
      * @return string
      */
 public function getIp()
 {
  if (getenv("HTTP_CLIENT_IP") && strcasecmp(getenv("HTTP_CLIENT_IP"), "unknown")){
   $ip = getenv("HTTP_CLIENT_IP");
        }elseif (getenv("HTTP_X_FORWARDED_FOR") && strcasecmp(getenv("HTTP_X_FORWARDED_FOR"), "unknown")){
            $ip = getenv("HTTP_X_FORWARDED_FOR");
        }elseif (getenv("REMOTE_ADDR") && strcasecmp(getenv("REMOTE_ADDR"), "unknown")){
            $ip = getenv("REMOTE_ADDR");
        }elseif (isset($_SERVER['REMOTE_ADDR']) && $_SERVER['REMOTE_ADDR'] && strcasecmp($_SERVER['REMOTE_ADDR'], "unknown"))  {
            $ip = $_SERVER['REMOTE_ADDR'];
        }else{
            $ip = "unknown";
        }
        return($ip);
 }    
} 

[!--infotagslink--]

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