本文实例为大家分享了PHP文件上传小程序的具体代码,供大家参考,具体内容如下
废话略过,直接上代码:
首先前端代码:index.html
<html <head <meta http-equiv="Content-Type" content="text/html;charset=UTF-8" <title 文件上传Demo</title </head <body <form method="post" action="upload.php" enctype="multipart/form-data" <table border=0 cellspacing=0 cellpadding=0 align=center width="100%" <tr <td width=55 height=20 align="center" <input type="hidden" name="MAX_FILE_SIZE" value="2000000" 文件: </td <td height="16" <input name="file" type="file" value="浏览" / <input type="submit" value="上传" name="submit" / </td </tr </table </form </body </html
接下来是重点:upload.php
<?php /** * @title 文件上传示例 * @author FeoniX */ header("Content-Type:text/html; charset=utf-8"); if($_POST['submit']){ $upfiles = new Upload(); $upfiles- upload_file(); } class Upload{ public $upload_name; //上传文件名 public $upload_tmp_name; //上传临时文件名 public $upload_final_name; //上传文件的最终文件名 public $upload_target_dir; //文件被上传到的目标目录 public $upload_target_path; //文件被上传到的最终路径 public $upload_filetype ; //上传文件类型 public $allow_uploadedfile_type;//允许的上传文件类型 public $upload_file_size; //上传文件的大小 public $allow_uploaded_maxsize=10000000;//允许上传文件的最大值 //构造函数 public function __construct() { $this- upload_name = $_FILES["file"]["name"]; //取得上传文件名 $this- upload_filetype = $_FILES["file"]["type"]; $this- upload_tmp_name = $_FILES["file"]["tmp_name"]; $this- allow_uploadedfile_type = array('jpeg','jpg','png','gif','bmp','doc','xls','csv','zip','rar','txt','wps'); $this- upload_file_size = $_FILES["file"]["size"]; $this- upload_target_dir="./upload"; } //文件上传 public function upload_file() { $upload_filetype = $this- getFileExt($this- upload_name);//获取文件扩展名 if(in_array($upload_filetype,$this- allow_uploadedfile_type))//判断文件类型是否符合要求 { if($this- upload_file_size < $this- allow_uploaded_maxsize)//判断文件大小是否超过允许的最大值 { if(!is_dir($this- upload_target_dir))//如果文件上传目录不存在 { mkdir($this- upload_target_dir);//创建文件上传目录 chmod($this- upload_target_dir,0777);//改权限 } $this- upload_final_name = date("YmdHis").rand(0,100).'.'.$upload_filetype;//生成随机文件名 $this- upload_target_path = $this- upload_target_dir."/".$this- upload_final_name;//文件上传目标目录 if(!move_uploaded_file($this- upload_tmp_name,$this- upload_target_path))//文件移动失败 { echo "<font color=red 文件上传失败!</font "; } else { echo "<font color=green 文件上传成功!</font "; } } else { echo("<font color=red 文件太大,上传失败!</font "); } } else { echo("<font color=red 仅支持一下文件类型,请重新选择:<br ".implode(',',$this- allow_uploadedfile_type)."</font "); } } /** *获取文件扩展名 *@param String $filename 要获取文件名的文件 */ public function getFileExt($filename){ $info = pathinfo($filename); return @$info["extension"]; } } ?
以上就是本文的全部内容,希望对大家的学习有所帮助。
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