jquery+php+ajax显示上传进度的多图片上传并生成缩略图代码_php技巧

完整实例代码点击此处本站下载。

效果图如下：

实现代码如下：

JavaScript代码如下：
代码如下:

javascript代码如下：
 代码如下:
上面2个js都放在index.php里面
XML/HTML代码如下：

 代码如下:
 

              

                Name  

                Size  

                Status  

                  

                  

              

  

              

  

              

                Select files to upload  

                Upload  

              

  

              

                  

                      

                          

                              

                          

                      

  

                      

                          

                          

                      

                  

              

  

              

        

upload.php页面代码如下：
 代码如下:<?php  

/* 

    @@ Including the functions.php for using the necessary functions. 

*/  

include('functions.php');  

  

/* 

    @@ This is the file upload class which does all the uploading work. 

*/  

include('class.upload.php');  

  

if(isset($_FILES["file"])) {  

    /* 

        @@ Generating unique name for the photo. 

    */  

    $time = time();  

    $rand_1 = rand(999, 999999);  

    $rand_2 = rand(999999, 999999999);  

    $rand_3 = rand();  

    $unique_value = $time.'_'.$rand_1.'_'.$rand_2.'_'.$rand_3;  

  

    /* 

        @@ Folder creation for each and every day. This ensures performance even with millions of images. 

    */  

    $folder = date('zY');  

        if(substr($folder, 0) == 0) {  

            $folder = '367'.date('Y');  

        }  

  

    /* 

        @@ This folder is for the source image files. 

    */  

    $pfolder = '../upload/source/';   

        if(!is_dir($pfolder)) {  

            mkdir($pfolder, 0755);  

        }  

  

    /* 

        @@ This folder is for the image files with 120x120 dimensions. 

    */  

    $tfolder = '../upload/small/';  

        if(!is_dir($tfolder)) {  

            mkdir($tfolder, 0755);  

        }  

  

    /* 

        @@ Assigning the upload file to the upload class for all the processing. 

    */  

    $handle = new Upload($_FILES["file"]);  

        if($handle->uploaded) {  

            $extension = $handle->file_src_name_ext;  

            $mime = $handle->file_src_mime;  

  

                if(($mime == 'image/gif') || ($mime == 'image/jpg') || ($mime == 'image/png') || ($mime == 'image/bmp') || ($mime == 'image/pjpeg') | ($mime == 'image/jpeg')) {  

                    /* 

                        @@ Check if the uploaded filetype is an image or not. 

                    */  

                    if(($extension == 'gif') || ($extension == 'jpg') || ($extension == 'jpeg') || ($extension == 'png') || ($extension == 'bmp') || ($extension == 'pjpeg')) {  

                        if($handle->image_src_x > 500) {  

                                /* 

                                    @@ Check if the filesize is smaller than 10 MB. 10 MB = 10485760 bytes. 

                                */  

                            if($handle->file_src_size < 10485760) {  

                                /* 

                                    @@ Getting the actual file name (with and without extension) and sanitizing it for inserting in the database. 

                                */  

                                $real_name = clean_input($handle->file_src_name);  

                                $body_name = clean_input($handle->file_src_name_body);  

  

                                $handle->file_new_name_body = $unique_value.'_'.$body_name;  

                                $handle->Process($pfolder);  

  

                                $handle->image_resize = true;  

                                $handle->image_ratio_crop = 'T';  

                                $handle->image_y = 120;  

                                $handle->image_x = 120;  

                                $handle->file_new_name_body = $unique_value.'_'.$body_name;  

                                $handle->Process($tfolder);  

  

                                    if($handle->processed) {  

                                        $actual_name = $handle->file_dst_name;  

                                        $size = ceil($handle->file_src_size / 1024);  

  

                                        ## Sending photo details back to the uploader.  

                                        $date = date("c", $time);  

  

                                            ## Reducing the length of real name if it exceeds 50 characters.  

                                            if(strlen($real_name) > 50) {  

                                                $real_name = substr($real_name, 0, 50).'..';  

                                            }  

                                            echo 'success,'.$real_name.','.$date.','.$folder.','.$actual_name;  

                                    } else {  

                                        echo 'error,Upload Error
There was an error uploading the photo.';  

                                    }  

                            } else {  

                                echo 'error,Upload Error
The photo is bigger than the allowed upload size of 10MB.';  

                            }  

                        } else {  

                            echo 'error,Upload Error
You are trying to upload a photo with smaller dimensions.';  

                        }  

                    } else {  

                        echo 'error,Upload Error
Only photo uploads are allowed.';  

                    }  

                } else {  

                    echo 'error,Upload Error
Only photo uploads are allowed.';  

                }  

        } else {  

            echo 'error,Upload Error
An upload error occured.';             

        }  

    /* 

        @@ Return the json response to the script. 

    */  

    $handle->Clean();  

} else {  

    echo 'error,Upload Error
An upload error occured.';  

}
希望本文所述对大家的PHP+jQuery程序设计有所帮助。