很多時候我們上傳圖片，跟顯示圖片是在同一頁面，不需要但單獨跳到一個頁面，所以我們本節就將兩個頁面融合在一起，代碼如下】
# #提示：需要將程式碼複製到本機運行
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>图片上传</title>
</head>
<body>
<form id="form1" name="upload" enctype="multipart/form-data" method="post" action="">
<input type="hidden" name="max_file_size " />
<input type="file" name="file" />
<input type="submit" name="submit" value="上传" />
</form>
<div>
<?php
header("content-type:text/html;charset=utf-8");
class upload
{
var $upload_name;
var $upload_tmp_address;
var $upload_server_name;
var $upload_filetype ;
var $file_type;
var $file_server_address;
var $image_w=600; //要显示图片的宽
var $image_h=350; //要显示图片的高
var $upload_file_size;
var $upload_must_size= 500000; //允许上传文件的大小，自己设置
function upload_file()
{
$this->upload_name =$_FILES["file"]["name"]; //取得上传文件名
$this->upload_filetype = $_FILES["file"]["type"];
$this->upload_server_name = date('y_m_dh_i_s').$this->upload_name;
// var_dump($this->upload_server_name );
// exit;
$this->upload_tmp_address = $_FILES["file"]["tmp_name"]; //取得临时地址
$this->file_type = array(
'image/jpg',
'image/jpeg',
'image/png',
'image/gif',); //允许上传文件的类型
$this->upload_file_size = $_FILES["file"]["size"]; //上传文件的大小
if(in_array($this->upload_filetype,$this->file_type))
{
if($_POST){if($this->upload_file_size < $this->upload_must_size)
{
echo("上传成功，谢谢支持");
$this->file_server_address = "../images/".$this->upload_server_name;
// var_dump($this->file_server_address );
// exit;
move_uploaded_file($this->upload_tmp_address,$this->file_server_address);//从temp目录移出
echo("<img src=$this->file_server_address width=$this->image_w height=$this->image_h/>"); //显示图片
}
else
{
echo("文件容量太大");
}
}
else
{
echo("不支持此文件类型，请重新选择");
}
}
}
}
$dd = new upload;
$dd->upload_file();
?>
</div>
</body>
</html>