php文件图片上传类
这款文件上传实用代码,可以方便的上传你指定的文件或图片,同时也可以快速的限制上传图片文件类或大小,实例代码如下:
/* * created on 2010-6-21 * * the class for image to upload * * made by s71ence * * @$user_id * @$max_file_size * @$max_image_side * @$destination_folder * * return: * @$_cookie['img_path'] * @$img_unfind * @$img_type * @$mkdir_warry * @$img_side_too_big * @$img_exist * @$img_move * @$img_upload_sucess */ 代码如下 复制代码 header( 'content-type:text/html;charset=utf-8' ); class image_upload extends fn_function { private $user_id ; private $max_file_size ; //allow the image's size private $max_image_side ; //allow the image's side private $destination_folder ; //image's storage path private $img_preview ; private $img_preview_size ; private $cookie_set ; //the cookie's name function __construct( $user_id , $max_file_size , $max_image_side , $destination_folder , $img_preview , $img_preview_size , $cookie_set ) { $this ->user_id= $user_id ; $this ->max_file_size= $max_file_size ; $this ->max_image_side= $max_image_side ; $this ->destination_folder= $destination_folder ; $this ->img_preview= $img_preview ; $this ->img_preview_size= $img_preview_size ; $this ->cookie_set= $cookie_set ; $this ->get_date(); $this ->get_image_type(); } private function get_date() { $this -> date =fn_function::get_server_date(); return $this -> date ; } function get_image_type() { $this ->up_img_types= array ( 'image/jpg' , 'image/jpeg' , 'image/png' , 'image/pjpeg' , 'image/gif' , 'image/bmp' , 'image/x-png' ); return $this ->up_img_types; } function upload_image() { if ( $_server [ 'request_method' ] == 'post' ) { //check the iamge is exist if (! is_uploaded_file ( $_files [ "upfile" ][ "tmp_name" ])) { return $img_unfind =fn_function::alert_msg( '图片不存在!' ); exit ; } $file = $_files [ "upfile" ]; //check the iamge's size if ( $this ->max_file_size < $file [ "size" ]) { return $img_side_too_big =fn_function::alert_msg( '图片大小超过系统允许最大值!' ); exit ; } //check the iamge's type if (!in_array( $file [ "type" ], $this ->up_img_types)) { return $img_type =fn_function::alert_msg( '图片类型不符!' ); exit ; } if (! file_exists ( $this ->destination_folder)) { if (!fn_function::mkdirs( $this ->destination_folder)) { return $mkdir_warry =fn_function::alert_msg( '目录创建失败!' ); exit ; } } $file_name = $file [ "tmp_name" ]; $image_size = getimagesize ( $file_name ); $pinfo = pathinfo ( $file [ "name" ]); $file_type = $pinfo [ 'extension' ]; $destination = $this ->destination_folder.time(). "." . $file_type ; setcookie( $this ->cookie_set, $destination ); if ( $image_size [0]> $this ->max_image_side || $image_size [1]> $this ->max_image_side) { return $img_side_too_big =fn_function::alert_msg( '图片分辨率超过系统允许最大值!' ); exit ; } $overwrite = "" ; if ( file_exists ( $destination ) && $overwrite != true) { return $img_exist =fn_function::alert_msg( '同名文件已经存在了!' ); exit ; } if (!move_uploaded_file ( $file_name , $destination )) { return $img_move =fn_function::alert_msg( '移动文件出错!' ); exit ; } $img_upload_sucess = "<font color=red face=微软雅黑>上传成功</font><br>" ; if ( $this ->img_preview==1) { $img_src = "<img src=" ".$destination." " width=" .( $image_size [0]* $this ->img_preview_size). " height=" .( $image_size [1]* $this ->img_preview_size); //开源代码phpfensi.com $img_upload_sucess .= $img_src ; } return $img_upload_sucess ; } } function __destruct() { //clear } }查看更多关于php文件图片上传类 - php上传下载的详细内容...
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