PHP实例开发源码—IDE Bee 社会互动营销平台GBK.zip

<?php //==================================================== // FileName:upload.inc.php // Summary: 上传类 // Author: Space.As // CreateTime:20090323 // LastModifed:20090323 // copyright e000s#php //==================================================== define('E000S', TRUE); /********************************************************************* * sa_upload(FormName, Directroy, MaxSize); 实例化上传类 * FormName 文件域名称 * Directroy 指定上传路径 * MaxSize 设置可上传文件大小 * * 调用方法 * upload(fileName);文件上传,强制命名fileName * cut_upload(fileName, Width, Height);裁剪上传,强制命名fileName,尺寸 * thumb(dscChar, Width, Height);创建缩略图,前缀,尺寸 * filePath();文件路径 * thumbMap();缩略图路径 * get_Time();上传时间 * * 错误代码 * 错误参数： * 0=正常, * 1=文件域未定义, * 2=文件不存在或者无法读取, * 3=上传失败目录不可写? * 4=无法执行裁剪上传(文件格式不支持?), * 6=未知错误!, * 7=无法创建缩略图(文件格式不支持?), *********************************************************************/ class sa_upload{ var $FormName; //文件域名称 var $Directroy; //上传至目录 var $MaxSize; //最大上传大小 var $CanUpload; //是否可以上传 var $doUpFile; //上传的文件名 var $sm_File; //缩略图名称 var $a_Time;//附件上传时间 var $Error; //构造函数 function sa_upload($formName='', $dirPath='', $maxSize=8) //formName=文件域,dirPath=上传目录,maxSize=上传大小限制 { //初始化各种参数 $this->FormName = $formName; $this->MaxSize = $maxSize; $this->CanUpload = true; $this->doUpFile = ''; $this->sm_File = ''; $this->Error = 0; //文件域检测 if ($formName == ''){ $this->CanUpload = false; $this->Error = 1; break; } //上传路径处理 if ($dirPath == ''){ $this->Directroy = $dirPath; }else{ $this->Directroy = $dirPath.'/'; } //文件大小检测 if($this->getSize(M) > $this->MaxSize){ $this->CanUpload = false; $this->Error = 7; return $this->Error; break; } } //检查文件是否存在 function scanFile() { if ($this->CanUpload){ $scan = is_readable($_FILES[$this->FormName]['name']); if ($scan){ $this->Error = 2; } return $this->scan; } } //获取文件大小 function getSize($format = 'B') { if ($this->CanUpload){ if ($_FILES[$this->FormName]['size'] == 0){ $this->Error = 2; $this->CanUpload = false; } //计算文件大小 switch ($format){ case 'B': return $_FILES[$this->FormName]['size'].'kb'; break; case 'M': return sprintf("%01.2f",($_FILES[$this->FormName]['size'])/(1024*1024)).'mb'; } } } //获取文件类型 function getExt() { if ($this->CanUpload){ $ext=$_FILES[$this->FormName]['name']; $extStr=explode('.',$ext); $count=count($extStr)-1; } return $extStr[$count]; } //获取文件名称 function getName() { if ($this->CanUpload){ return $_FILES[$this->FormName]['name']; } } //获取上传时间 function get_Time() { if ($this->CanUpload){ return $this->a_Time; } } //重命名 function newName() { if ($this->CanUpload){ $FullName=$_FILES[$this->FormName]['name']; $extStr=explode('.',$FullName); $count=count($extStr)-1; $ext = $extStr[$count]; $tempTimes=time(); $this->a_Time=$tempTimes; return $FullName.'-'.$tempTimes.'.'.$ext; } } //上传文件 function upload($fileName = '') { if ($this->CanUpload){ if ($_FILES[$this->FormName]['size'] == 0){ $this->Error = 2; $this->CanUpload = false; return $this->Error; break; } } if($this->CanUpload){ //未指定名称则执行默认重命名 if ($fileName == ''){ $fileName = $this->newName(); }else{ $this->a_Time=time(); $fileName = $fileName.'.'.$this->getExt(); } //上传 $this->doUpload=@copy($_FILES[$this->FormName]['tmp_name'], $this->Directroy.$fileName); if($this->doUpload) {//上传成功则返回重命名之后名称,更改文件属性 $this->doUpFile = $fileName; chmod($this->Directroy.$fileName, 0777); return true; }else{//上传失败,返回错误代码 $this->Error = 3; return $this->Error; } } } //裁剪上传 function cut_upload($fileName = '',$width=500,$height=500){ if ($this->CanUpload){ if ($_FILES[$this->FormName]['size'] == 0){ $this->Error = 2; $this->CanUpload = false; return $this->Error; break; } } if($this->CanUpload){ //未指定名称则执行默认重命名 if ($fileName == ''){ $fileName = $this->newName(); }else{ $this->a_Time=time(); $fileName = $fileName.'.'.$this->getExt(); } //检查是否可自行裁剪操作(图片),特殊原因png不支持裁剪上传 $data = getimagesize($_FILES[$this->FormName]['tmp_name'],&$info); switch ($data[2]) { case 1: $temp_img = @imagecreatefromgif($_FILES[$this->FormName]['tmp_name']); break; case 2: $temp_img = @imagecreatefromjpeg($_FILES[$this->FormName]['tmp_name']); break; default: $this->Error = 4; $this->CanUpload = false; return $this->Error; break; } $o_width = imagesx($temp_img); //取得原图宽 $o_height = imagesy($temp_img); //取得原图高 if($width>$o_width && $height>$o_height){//原图小于裁剪尺寸,直接使用原图,并且返回文件名称. $this->doUpload=@copy($_FILES[$this->FormName]['tmp_name'], $this->Directroy.$fileName); if($this->doUpload) {//上传成功则返回重命名之后名称,更改文件属性 $this->doUpFile = $fileName; chmod($this->Directroy.$fileName, 0777); return true; }else{//上传失败,返回错误代码 $this->Error = 3; return $this->Error; } }else{//原图大于裁剪尺寸,执行裁剪 //等比缩放尺寸计算 if($o_width/$o_height >= $width/$height){ if($o_width>$width){ $newwidth=$width; $newheight=$o_height*$width/$o_width; }else{ $newwidth=$o_width; $newheight=$o_height; } }else{ if($o_height>$height){ $newheight=$height; $newwidth=$o_width*$height/$o_height; }else{ $newwidth=$o_width; $newheight=$o_height; } } //图片生成 $new_img = imagecreatetruecolor($newwidth, $newheight); imagecopyresampled($new_img, $temp_img, 0, 0, 0, 0, $newwidth, $newheight, $o_width, $o_height); $cr=imagejpeg($new_img , $this->Directroy.$fileName); $this->doUpFile=$fileName; imagedestroy($new_img); //返回执行结果 if ($cr){ $this->sm_File = $dscFile; return true; }else{ $this->Error = 15; return $this->Error; } } } } //创建图片缩略图 function thumb($dscChar='',$width=150,$height=113) { if ($this->CanUpload && $this->doUpFile != ''){ $srcFile = $this->doUpFile; //缩略图前缀 if ($dscChar == ''){ $dscChar = 'sm_'; } $dscFile = $this->Directroy.$dscChar.$srcFile; $data = getimagesize($this->Directroy.$srcFile,&$info); switch ($data[2]) { case 1: $im = @imagecreatefromgif($this->Directroy.$srcFile); break; case 2: $im = @imagecreatefromjpeg($this->Directroy.$srcFile); break; case 3: $im = @imagecreatefrompng($this->Directr