An example of image storage and browsing (Linux+Apache+PHP+MySQL)_PHP tutorial

Note that the table structure used in this program is:
use test;
create table image(
filename varchar(50),
filesize int,
filetype varchar(50),
filedata longblob
);
*/

//?cmd={read|list|form|store}

//Check the validity of cmd parameters
switch($cmd){
case 'read':
break;
case 'list':
break;
case 'form':
break;
Case 'store':
break;
default:
$cmd = 'list';
break;
}

switch($cmd){
case 'read':
//?cmd=read&id={}
//Read a picture
$server = mysql_connect("localhost","test ","") or die("Cannot connect to database server");
mysql_select_db("test",$server) or die("Unable to connect to database");
$sql = "select filetype,filedata from image where id='$id'";
$rst = mysql_query($sql,$server) or die("$sql query error");
if($row=mysql_fetch_row($rst)){
header("Content-Type:" . $row[0]);
echo $row[1];
else{
echo "The record was not found";
}
mysql_free_result($rst);
mysql_close($server) or die("Unable to disconnect from database server");
break;
case 'list':
//? cmd=list
//Show all pictures
echo '';
echo ' ';
echo '';
echo 'Show all images';
echo " " ";
echo 'Upload pictures';
$server = mysql_connect("localhost"," test","") or die("Cannot connect to database server");
mysql_select_db("test",$server) or die("Unable to connect to database");
$sql = "select id,description ,filename,filetype,filesize from image";
$rst = mysql_query($sql,$server) or die("$sql query error");
while($row=mysql_fetch_row($rst)){
echo "

---

";
echo "Description:" . $row[1] . "
";
echo "File name:" . $row[2] . "
";
  echo "Type:" . $row[3] . "
";
  echo "Size:" . $row[4] . "
";
echo '';
}
mysql_free_result($rst);
mysql_close($server) or die("Unable to disconnect from database server");
echo '';
echo '';
break;
case 'form':
?>

Description:



File:

break;
case 'store':
//?cmd=store&description={}&file={}&file_size={}&file_type={}&file_name={}
//Storing pictures
echo '';
echo '';
echo '';
echo 'show all images';
echo " ";
echo 'Upload pictures';
$server = mysql_connect("localhost","test"," ") or die("Unable to connect to the database server");
mysql_select_db("test",$server) or die("Unable to connect to the database");
$data = addslashes(fread(fopen($file, "r"),filesize($file)));
$sql = "insert into image(description,filename,filetype,filesize,filedata)
values('$description','" . basename($ file_name) . "','$file_type',$file_size,'$data')";
mysql_query($sql,$server) or die("$sql execution error");
$id = mysql_insert_id ();
echo "

---

The effect of the picture you uploaded:
";
echo '';
mysql_close($server) or die("Unable to disconnect from the database server");
echo '';
echo ' break;
}
?>

http://www.bkjia.com/PHPjc/316853.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/316853.htmlTechArticleNote that the table structure used in this program is: use test; create table image( id int unsigned auto_increment primary key, description text, filename varchar(50), filesize int, filetype varcha...