php檔案上傳類upload_class的擴充類及樣本

本文介紹下，一個用於上傳圖片的php類，是基於之前的upload_class類的一個擴充。有需要的朋友，可以參考下。 分享一個上傳圖片檔案的php擴充類，基於前文：php檔案上傳類與執行個體的一個擴充。主要用於上傳圖片檔案。 代碼： upload_dir.$this->file_copy; $this->check_dir($this->thumb_folder); // run these checks to create not existing directories $this->check_dir($this->foto_folder); // the upload dir is created during the file upload (if not already exists) $thumb = $this->thumb_folder.$this->file_copy; $foto = $this->foto_folder.$this->file_copy; if ($landscape_only) { $this->get_img_size($filename); if ($this->y_size > $this->x_size) { $this->img_rotate($filename, $compression); } } $this->check_dimensions($filename); // check which size is longer then the max value if ($this->larger_curr_value > $this->larger_dim_value) { $this->thumbs($filename, $foto, $this->larger_dim_value, $compression); } else { copy($filename, $foto); } if ($create_thumb) { if ($this->larger_curr_value > $this->larger_dim_thumb_value) { $this->thumbs($filename, $thumb, $this->larger_dim_thumb_value, $compression); // finally resize the image } else { copy($filename, $thumb); } } if ($delete_tmp_file) $this->del_temp_file($filename); // note if you delete the tmp file the check if a file exists will not work } function get_img_size($file) { $img_size = getimagesize($file); $this->x_size = $img_size[0]; $this->y_size = $img_size[1]; } function check_dimensions($filename) { $this->get_img_size($filename); $x_check = $this->x_size - $this->x_max_size; $y_check = $this->y_size - $this->y_max_size; if ($x_check < $y_check) { $this->larger_dim = "y"; $this->larger_curr_value = $this->y_size; $this->larger_dim_value = $this->y_max_size; $this->larger_dim_thumb_value = $this->y_max_thumb_size; } else { $this->larger_dim = "x"; $this->larger_curr_value = $this->x_size; $this->larger_dim_value = $this->x_max_size; $this->larger_dim_thumb_value = $this->x_max_thumb_size; } } function img_rotate($wr_file, $comp) { $new_x = $this->y_size; $new_y = $this->x_size; if ($this->use_image_magick) { exec(sprintf("mogrify -rotate 90 -quality %d %s", $comp, $wr_file)); } else { $src_img = imagecreatefromjpeg($wr_file); $rot_img = imagerotate($src_img, 90, 0); $new_img = imagecreatetruecolor($new_x, $new_y); imageantialias($new_img, TRUE); imagecopyresampled($new_img, $rot_img, 0, 0, 0, 0, $new_x, $new_y, $new_x, $new_y); imagejpeg($new_img, $this->upload_dir.$this->file_copy, $comp); } } function thumbs($file_name_src, $file_name_dest, $target_size, $quality = 80) { //print_r(func_get_args()); $size = getimagesize($file_name_src); if ($this->larger_dim == "x") { $w = number_format($target_size, 0, ',', ''); $h = number_format(($size[1]/$size[0])*$target_size,0,',',''); } else { $h = number_format($target_size, 0, ',', ''); $w = number_format(($size[0]/$size[1])*$target_size,0,',',''); } if ($this->use_image_magick) { exec(sprintf("convert %s -resize %dx%d -quality %d %s", $file_name_src, $w, $h, $quality, $file_name_dest)); } else { $dest = imagecreatetruecolor($w, $h); imageantialias($dest, TRUE); $src = imagecreatefromjpeg($file_name_src); imagecopyresampled($dest, $src, 0, 0, 0, 0, $w, $h, $size[0], $size[1]); imagejpeg($dest, $file_name_dest, $quality); } } } $max_size = 1024*1024; // the max. size for uploading (~1MB) define("MAX_SIZE", $max_size); $foto_upload = new Foto_upload; $foto_upload->upload_dir = $_SERVER['DOCUMENT_ROOT']."/files/"; // "files" is the folder for the uploaded files (you have to create these folder) $foto_upload->foto_folder = $_SERVER['DOCUMENT_ROOT']."/files/photo/"; $foto_upload->thumb_folder = $_SERVER['DOCUMENT_ROOT']."/files/thumb/"; $foto_upload->extensions = array(".jpg"); // specify the allowed extension(s) here $foto_upload->language = "en"; $foto_upload->x_max_size = 300; $foto_upload->y_max_size = 200; $foto_upload->x_max_thumb_size = 120; $foto_upload->y_max_thumb_size = 150; if (isset($_POST['Submit']) && $_POST['Submit'] == "Upload") { $foto_upload->the_temp_file = $_FILES['upload']['tmp_name']; $foto_upload->the_file = $_FILES['upload']['name']; $foto_upload->http_error = $_FILES['upload']['error']; $foto_upload->replace = (isset($_POST['replace'])) ? $_POST['replace'] : "n"; // because only a checked checkboxes is true $foto_upload->do_filename_check = "n"; if ($foto_upload->upload()) { $foto_upload->process_image(false, true, 80); $foto_upload->message[] = "Processed foto: ".$foto_upload->file_copy."!"; // "file_copy is the name of the foto" } } $error = $foto_upload->show_error_string(); ?> 2，上傳圖片的調用樣本 php圖片上傳類的調用樣本-bbs.it-home.org 上傳圖片

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