141 lines
3.9 KiB
PHP
141 lines
3.9 KiB
PHP
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<?php
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class files{
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/**
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* upload
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*
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* 文件上传
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*
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* @param String $path e.g. Zend_Registry::get('upload')
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* @param Array $files e.g. $_FILES['Filedata']
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* @param String $dir e.g. $_POST['dir']
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*
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* return Array $msg e.g. if($msg['error'])
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*/
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static function upload($path,$files,$dir)
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{
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$msg=array();
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//文件保存目录路径
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$save_path = $path;
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//文件保存目录URL
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$save_url = $path;
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//定义允许上传的文件扩展名
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$ext_arr = array(
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'image' => array('gif', 'jpg', 'jpeg', 'png', 'bmp'),
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'flash' => array('swf', 'flv'),
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'media' => array('swf', 'flv', 'mp3', 'wav', 'wma', 'wmv', 'mid', 'avi', 'mpg', 'asf', 'rm', 'rmvb'),
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'file' => array('doc', 'docx', 'xls', 'xlsx', 'ppt', 'htm', 'html', 'txt', 'zip', 'rar', 'gz', 'bz2'),
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);
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//最大文件大小
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$max_size = 1000000;
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$save_path = realpath($save_path) . '/';
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//有上传文件时
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if (empty($_FILES) === false) {
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//原文件名
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$file_name = $files['name'];
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//服务器上临时文件名
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$tmp_name = $files['tmp_name'];
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//文件大小
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$file_size = $files['size'];
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//目录名
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$dir_name = empty($dir) ? 'image' : trim($dir);
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//检查文件名
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if (!$file_name) {
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$msg['error'] = "请选择文件。";
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}
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//检查目录
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else if (@is_dir($save_path) === false) {
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$msg['error'] = "上传目录不存在。请联系管理员";
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}
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//检查目录写权限
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else if (@is_writable($save_path) === false) {
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$msg['error'] = "上传目录没有写权限。请联系管理员";
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}
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//检查是否已上传
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else if (@is_uploaded_file($tmp_name) === false) {
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$msg['error'] = "临时文件可能不是上传文件。请重新上传";
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}
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//检查文件大小
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else if ($file_size > $max_size) {
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$msg['error'] = "上传文件大小超过限制。";
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}
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//检查目录名
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else if (empty($ext_arr[$dir_name])) {
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$msg['error'] = "目录名不正确。";
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}
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else
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{
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//获得文件扩展名
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$temp_arr = explode(".", $file_name);
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$file_ext = array_pop($temp_arr);
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$file_ext = trim($file_ext);
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$file_ext = strtolower($file_ext);
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//检查扩展名
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if (in_array($file_ext, $ext_arr[$dir_name]) === false) {
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$msg['error'] = "上传文件扩展名是不允许的扩展名。\n只允许" . implode(",", $ext_arr[$dir_name]) . "格式。";
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}
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else
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{
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//创建文件夹
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$dbsave = ""; //数据库中存放的路径
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if ($dir_name !== '') {
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$save_path .= $dir_name . "/";
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$save_url .= $dir_name . "/";
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$dbsave = $dir_name.'/';
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if (!file_exists($save_path)) {
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mkdir($save_path);
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}
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}
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$y = date("Y");
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$m = date("m");
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$d = date("d");
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$save_path .= $y . "/";
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$save_url .= $y . "/";
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$dbsave .= $y.'/';
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if (!file_exists($save_path)) {
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mkdir($save_path);
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}
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$save_path .= $m . "/";
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$save_url .= $m . "/";
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$dbsave .= $m.'/';
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if (!file_exists($save_path)) {
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mkdir($save_path);
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}
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$save_path .= $d . "/";
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$save_url .= $d . "/";
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$dbsave .= $d.'/';
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if (!file_exists($save_path)) {
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mkdir($save_path);
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}
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//新文件名
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$new_file_name = date("YmdHis") . '_' . rand(10000, 99999) . '.' . $file_ext;
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//移动文件
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$file_path = $save_path . $new_file_name;
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if (move_uploaded_file($tmp_name, $file_path) === false) {
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$msg['error'] = "上传文件失败。";
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}
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//数据库最终存储的文件
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$dbsave .= $new_file_name;
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@chmod($file_path, 0644);
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$file_url = $save_url . $new_file_name;
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$msg['file_url'] = $file_url;
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$msg['file_size'] = $file_size;
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$msg['db_path'] = $dbsave;
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}//检查扩展名
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}//目录正确性
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return $msg;
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}
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}
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//文件上传
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}
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