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30 Oct 2014

Upload images to mysql database using php

                         In this method, You won't need to store images in mysql database. Just store image name in mysql database and store image in particular directory. Then you can retrieve image from particular directory using image name in database. You can done it using php.

Create table using mysql query:


                create table image(
                     no int(4) AUTO_INCREMENT, img_name varchar(30), 
                     PRIMARY KEY(no) )
Now the table 'image' is created. Then you can store values to mysql database using php.

Upload images using php and mysql:


                  The php script for upload images to mysql database is:


<html>
<body>
<form action="#" method="post" enctype="multipart/form-data">
File: <input type="file" name="file">
       <input type="submit" name="submit" value="Upload">
</form>
<?php
 if(isset($_POST['submit']))
 { 
   mysql_connect('localhost','root','');
   mysql_select_db('new');
   $name=$_FILES['file']['name'];
   $type=$_FILES['file']['type'];
   if($type=='image/jpeg' || $type=='image/png' || $type=='image/gif' || $type=='image/pjpeg')
   {
if(file_exists(dirname($_SERVER['DOCUMENT_ROOT']).'/oops/upload/image/'.$name))
     {
      echo'file is already present';
     }
     else
     {
      $up=move_uploaded_file($_FILES['file']['tmp_name'],dirname($_SERVER['DOCUMENT_ROOT']).'/oops/upload/image/'.$name);
      $q=mysql_query("insert into image values('','".$name."')");
  if($up && $q)
  {
   echo'image uploaded and stored';
  }
  elseif(!$up) 
  {
   echo'image not uploaded';
  }
  elseif(!$q)
  {
   echo'image not stored';
  }
 }
   }
   else
   {
    echo'Invalid file type';
   }
 }
?>
</body>
</html>


        where,
                   $_FILES['file']['type'] is used to return the type of uploaded file.
                   move_uploaded_file() is used to upload the file.
You want to know about upload files in php.
                    if($type=='image/jpeg' || $type=='image/png' || $type=='image/gif' || $type=='image/pjpeg' ) is used to check the file type whether it is image or not. If it is image, then it is stored. Otherwise, it is not upload and also stored.
                   Now you can see the directory, the image is stored here and also stored in mysql database.

29 Oct 2014

Upload files using PHP

                       You can see upload files at all social media sites to upload your photos. You can upload files using php. You can upload both text and binary files in php. You can upload any files such as .txt, .png, .jpg, .gif, .doc, .csv. At the same time you control the file extensions and file size while uploading files using php. For example, you allows the user can upload only .doc and docx file with particular file size.

PHP script for upload file:


                       Your form should be like this:

<form action="#" method="post" enctype="multipart/form-data">
File: <input type="file" name="file">
<input type="submit" name="submit" value="Upload">
</form>

                where,
                          enctype="multpart/form-data  -  must be present in form. Otherwise file does not upload.
                         type="file" in <input>  tag is used to take input as a file.

The php script for upload file is:

<html>
<body>
<form action="#" method="post" enctype="multipart/form-data">
File: <input type="file" name="file">
       <input type="submit" name="submit" value="Upload">
</form>
<?php
 if(isset($_POST['submit']))
 {
   $name=$_FILES['file']['name'];
   if(file_exists(dirname($_SERVER['DOCUMENT_ROOT']).'/oops/upload/files/'.$name))
   {
    echo'file is already present';
   }
   else
   {
    move_uploaded_file($_FILES['file']['tmp_name'],dirname($_SERVER['DOCUMENT_ROOT']).'/oops/upload/files/'.$name);
     echo'file added';
}
 }
?>
</body>
</html>

  where,

  

$_FILES:


                   It is the php global variable. It keeps information about uploaded file like below.
  $_FILES['file']['name'] - name of uploaded file.
  $_FILES['file']['type'] - type of uploaded file.
  $_FILES['file']['size'] - size of uploaded file.
  $_FILES['file']['tmp_name'] - temporary name of uploaded file which is in server.
  $_FILES['file']['error'] - errors while uploadeding file.
 ' file' is the name of <input> tag
  $_SERVER['DOCUMENT_ROOT'] - return the directory.
  move_uploaded_file()
 - uploaded file to specified directory.

                  Now you can upload any file without any restriction using php. The file is stored in '/upload/file/' directory already if it is not present in the directory. Otherwise you'll get error message ' file is laready present'.