PHP开发 图片上传之上传显示...登陆

PHP开发 图片上传之上传显示同一页面

很多时候我们上传图片,跟显示图片是在同一页面,不需要但单独跳到一个页面,所以我们本节就将两个页面融合在一起,代码如下】

提示:需要将代码复制到本地运行

<!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>

可以将这些代码放到你需要放的页面中去


<!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>
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