这里是来自网络朋友的一个实现的文件上传类代码,我们详细的介绍了每个变量的用处,下面看看吧,有需要可以参考一下,实例类代码如下:
- <?php
-
-
-
- class uploadFile {
-
- public $max_size = '1000000';
- public $file_name = 'date';
- public $allow_types;
- public $errmsg = '';
- public $uploaded = '';
- public $save_path;
- private $files;
- private $file_type = array();
- private $ext = '';
-
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-
-
-
-
- public function __construct($save_path = './upload/',$file_name = 'date',$allow_types = '') {
- $this->file_name = $file_name;
- $this->save_path = (preg_match('//$/',$save_path)) ? $save_path : $save_path . '/';
- $this->allow_types = $allow_types == '' ? 'jpg|gif|png|zip|rar' : $allow_types;
- }
-
-
-
-
-
-
-
- public function upload_file($files) {
- $name = $files['name'];
- $type = $files['type'];
- $size = $files['size'];
- $tmp_name = $files['tmp_name'];
- $error = $files['error'];
-
- switch ($error) {
- case 0 : $this->errmsg = '';
- break;
- case 1 : $this->errmsg = '超过了php.ini中文件大小';
- break;
- case 2 : $this->errmsg = '超过了MAX_FILE_SIZE 选项指定的文件大小';
- break;
- case 3 : $this->errmsg = '文件只有部分被上传';
- break;
- case 4 : $this->errmsg = '没有文件被上传';
- break;
- case 5 : $this->errmsg = '上传文件大小为0';
- break;
- default : $this->errmsg = '上传文件失败!';
- break;
- }
- if($error == 0 && is_uploaded_file($tmp_name)) {
-
- if($this->check_file_type($name) == FALSE){
- return FALSE;
- }
-
- if($size > $this->max_size){
- $this->errmsg = '上传文件<font color=red>'.$name.'</font>太大,最大支持<font color=red>'.ceil($this->max_size/1024).'</font>kb的文件';
- return FALSE;
- }
- $this->set_save_path();
- $new_name = $this->file_name != 'date' ? $this->file_name.'.'.$this->ext : date('YmdHis').'.'.$this->ext;
- $this->uploaded = $this->save_path.$new_name;
-
- if(move_uploaded_file($tmp_name,$this->uploaded)){
- $this->errmsg = '文件<font color=red>'.$this->uploaded.'</font>上传成功!';
- return TRUE;
- }else{
- $this->errmsg = '文件<font color=red>'.$this->uploaded.'</font>上传失败!';
- return FALSE;
- }
-
- }
- }
-
-
-
-
-
-
-
- public function check_file_type($filename){
- $ext = $this->get_file_type($filename);
- $this->ext = $ext;
- $allow_types = explode('|',$this->allow_types);
-
-
- if(in_array($ext,$allow_types)){
- return TRUE;
- }else{
- $this->errmsg = '上传文件<font color=red>'.$filename.'</font>类型错误,只支持上传<font color=red>'.str_replace('|',',',$this->allow_types).'</font>等文件类型!';
- return FALSE;
- }
- }
-
-
-
-
-
-
-
- public function get_file_type($filename){
- $info = pathinfo($filename);
- $ext = $info['extension'];
- return $ext;
- }
-
-
-
-
- public function set_save_path(){
- $this->save_path = (preg_match('//$/',$this->save_path)) ? $this->save_path : $this->save_path . '/';
- if(!is_dir($this->save_path)){
-
- $this->set_dir();
- }
- }
-
-
-
-
-
-
-
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- public function set_dir($dir = null){
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- if(!$dir){
- $dir = $this->save_path;
- }
- if(is_dir($dir)){
- $this->errmsg = '需要创建的文件夹已经存在!';
- }
- $dir = explode('/', $dir);
- foreach($dir as $v){
- if($v){
- $d .= $v . '/';
- if(!is_dir($d)){
- $state = mkdir($d, 0777);
- if(!$state)
- $this->errmsg = '在创建目录<font color=red>' . $d . '时出错!';
- }
- }
- }
- return true;
- }
- }
-
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-
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- class uploadImg extends uploadFile {
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- public $mark_str = 'kickflip@php100';
- public $str_r = 0;
- public $str_g = 0;
- public $str_b = 0;
- public $mark_ttf = './upload/SIMSUN.TTC';
- public $mark_logo = './upload/logo.png';
- public $resize_h;
- public $resize_w;
- public $source_img;
- public $dst_path = './upload/';
-
-
-
-
-
-
-
-
- public function img_resized($w,$h,$source_img = NULL){
- $source_img = $source_img == NULL ? $this->uploaded : $source_img;
- if(!is_file($source_img)) {
- $this->errmsg = '文件'.$source_img.'不存在';
- return FALSE;
- }
- $this->source_img = $source_img;
- $img_info = getimagesize($source_img);
- $source = $this->img_create($source_img);
- $this->resize_w = $w;
- $this->resize_h = $h;
- $thumb = imagecreatetruecolor($w,$h);
- imagecopyresized($thumb,$source,0,0,0,0,$w,$h,$img_info[0],$img_info[1]);
- $dst_path = $this->dst_path == '' ? $this->save_path : $this->dst_path;
- $dst_path = (preg_match('//$/',$dst_path)) ? $dst_path : $dst_path . '/';//将目标文件夹后加上/
- if(!is_dir($dst_path)) $this->set_dir($dst_path);
- $dst_name = $this->set_newname($source_img);
- $this->img_output($thumb,$dst_name);
- imagedestroy($source);
- imagedestroy($thumb);
- }
-
-
-
-
-
-
-
-
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- public function img_mark($source_img = NULL,$mark_type = 1,$mark_postion = 2) {
- $source_img = $source_img == NULL ? $this->uploaded : $source_img;
- if(!is_file($source_img)) {
- $this->errmsg = '文件'.$source_img.'不存在';
- return FALSE;
- }
- $this->source_img = $source_img;
- $img_info = getimagesize($source_img);
- $source = $this->img_create($source_img);
- $mark_xy = $this->get_mark_xy($mark_postion);
- $mark_color = imagecolorallocate($source,$this->str_r,$this->str_g,$this->str_b);
-
- switch($mark_type) {
-
- case 1 :
- $str = $this->mark_str;
- imagestring($source,5,$mark_xy[0],$mark_xy[1],$str,$mark_color);
- $this->img_output($source,$source_img);
- break;
-
- case 2 :
- if(!is_file($this->mark_ttf)) {
- $this->errmsg = '打水印失败:字体文件'.$this->mark_ttf.'不存在!';
- return FALSE;
- }
- $str = $this->mark_str;
-
- imagettftext($source,12,0,$mark_xy[2],$mark_xy[3],$mark_color,$this->mark_ttf,$str);
- $this->img_output($source,$source_img);
- break;
-
- case 3 :
- if(is_file($this->mark_logo)){
- $logo_info = getimagesize($this->mark_logo);
- }else{
- $this->errmsg = '打水印失败:logo文件'.$this->mark_logo.'不存在!';
- return FALSE;
- }
-
- $logo_info = getimagesize($this->mark_logo);
- if($logo_info[0]>$img_info[0] || $logo_info[1]>$img_info[1]) {
- $this->errmsg = '打水印失败:源图片'.$this->source_img.'比'.$this->mark_logo.'小!';
- return FALSE;
- }
-
- $logo = $this->img_create($this->mark_logo);
- imagecopy ( $source, $logo, $mark_xy[4], $mark_xy[5], 0, 0, $logo_info[0], $logo_info[1]);
- $this->img_output($source,$source_img);
- break;
-
- default:
- $str = $this->mark_str;
- imagestring($source,5,$mark_xy[0],$mark_xy[1],$str,$mark_color);
- $this->img_output($source,$source_img);
- break;
- }
- imagedestroy($source);
- }
-
-
-
-
-
-
-
-
- private function get_mark_xy($mark_postion){
- $img_info = getimagesize($this->source_img);
-
- $stre_w = strlen($this->mark_str)*9+5 ;
-
-
- $strc_w = strlen($this->mark_str)*7+5 ;
-
- if(is_file($this->mark_logo)){
- $logo_info = getimagesize($this->mark_logo);
- }
-
-
-
- switch($mark_postion){
-
- case 1:
- $mark_xy[0] = 5;
- $mark_xy[1] = $img_info[1]-20;
- $mark_xy[2] = 5;
- $mark_xy[3] = $img_info[1]-5;
- $mark_xy[4] = 5;
- $mark_xy[5] = $img_info[1]-$logo_info[1]-5;
- break;
-
- case 2:
- $mark_xy[0] = $img_info[0]-$stre_w;
- $mark_xy[1] = $img_info[1]-20;
- $mark_xy[2] = $img_info[0]-$strc_w;
- $mark_xy[3] = $img_info[1]-5;
- $mark_xy[4] = $img_info[0]-$logo_info[0]-5;
- $mark_xy[5] = $img_info[1]-$logo_info[1]-5;
- break;
-
- case 3:
- $mark_xy[0] = 5;
- $mark_xy[1] = 5;
- $mark_xy[2] = 5;
- $mark_xy[3] = 15;
- $mark_xy[4] = 5;
- $mark_xy[5] = 5;
- break;
-
- case 4:
- $mark_xy[0] = $img_info[0]-$stre_w;
- $mark_xy[1] = 5;
- $mark_xy[2] = $img_info[0]-$strc_w;
- $mark_xy[3] = 15;
- $mark_xy[4] = $img_info[0]-$logo_info[0]-5;
- $mark_xy[5] = 5;
- break;
-
- default :
- $mark_xy[0] = $img_info[0]-$stre_w;
- $mark_xy[1] = $img_info[1]-5;
- $mark_xy[2] = $img_info[0]-$strc_w;
- $mark_xy[3] = $img_info[1]-15;
- $mark_xy[4] = $img_info[0]-$logo_info[0]-5;
- $mark_xy[5] = $img_info[1]-$logo_info[1]-5;
- break;
- }
- return $mark_xy;
- }
-
-
-
-
-
-
-
- private function img_create($source_img) {
- $info = getimagesize($source_img);
- switch ($info[2]){
- case 1:
- if(!function_exists('imagecreatefromgif')){
- $source = @imagecreatefromjpeg($source_img);
- }else{
- $source = @imagecreatefromgif($source_img);
- }
- break;
- case 2:
- $source = @imagecreatefromjpeg($source_img);
- break;
- case 3:
- $source = @imagecreatefrompng($source_img);
- break;
- case 6:
- $source = @imagecreatefromwbmp($source_img);
- break;
- default:
- $source = FALSE;
- break;
- }
- return $source;
- }
-
-
-
-
-
-
-
- private function set_newname($sourse_img) {
- $info = pathinfo($sourse_img);
- $new_name = $this->resize_w.'_'.$this->resize_h.'_'.$info['basename'];
- if($this->dst_path == ''){
- $dst_name = str_replace($info['basename'],$new_name,$sourse_img);
- }else{
- $dst_name = $this->dst_path.$new_name;
- }
- return $dst_name;
- }
-
-
-
-
-
-
-
-
- public function img_output($im,$dst_name) {
- $info = getimagesize($this->source_img);
- switch ($info[2]){
- case 1:
- if(!function_exists('imagegif')){
- imagejpeg($im,$dst_name);
- }else{
- imagegif($im, $dst_name);
- }
- break;
- case 2:
- imagejpeg($im,$dst_name);
- break;
- case 3:
- imagepng($im,$dst_name);
- break;
- case 6:
- imagewbmp($im,$dst_name);
- break;
- }
- }
-
- }
- ?>
这个写成了上传文件类就方便多了,把上面代码保存一个文件它就可以公共调用与修改删除了. |