/***图片缩放*/functionresizeImage($p_w_picpath,$prefix='',$width=266,$compression=0){//判断操作系统转换图片名称编码if(strtoupper(substr(PHP_OS,0,3))==='WIN'){$p_w_picpath=iconv('utf-8','gbk',$p_w_picpath);}//获取图片相关信息$imgInfo=getp_w_picpathsize($p_w_picpath);$imgInfo['width']=$imgInfo[0];$imgInfo['height']=$imgInfo[1];$width=$imgInfo['width']<$width?$imgInfo['width']:$width;if(!empty($imgInfo['width'])&&!empty($imgInfo['height'])){switch($imgInfo['mime']){case'p_w_picpath/jpeg':$imgRes=p_w_picpathcreatefromjpeg($p_w_picpath);break;case'p_w_picpath/gif':$imgRes=p_w_picpathcreatefromgif($p_w_picpath);break;case'p_w_picpath/png':$imgRes=p_w_picpathcreatefrompng($p_w_picpath);break;case'p_w_picpath/bmp':$imgRes=p_w_picpathcreatefromwbmp($p_w_picpath);break;}if($imgRes){$proportion=$width/$imgInfo['width'];$height=$imgInfo['height']*$proportion;$white=p_w_picpathcreatetruecolor($width,$height);//缩小图片p_w_picpathcopyresampled($white,$imgRes,0,0,0,0,$width,$height,$imgInfo['width'],$imgInfo['height']);$imgName=$prefix?$prefix.$this->nameToChina($p_w_picpath):$this->nameToChina($p_w_picpath);$p_w_picpathName=dirname($p_w_picpath).DS.$imgName;if(file_exists($p_w_picpathName)){unlink($p_w_picpathName);}if(!$compression){p_w_picpathpng($white,$p_w_picpathName);}else{p_w_picpathjpeg($white,$p_w_picpathName);}//销毁资源p_w_picpathdestroy($white);p_w_picpathdestroy($imgRes);}}}