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Upload image to folder - how can i mainpulate for several?

Posted: Tue May 18, 2010 9:59 am
by tom8521
I have a code that works when uploading an image to a webserver folder. However, I need to uplaod many images. How can I edit this code for say 6 images?

Code: Select all

<?php
//define a maxim size for the uploaded images in Kb
 define ("MAX_SIZE","100"); 

//This function reads the extension of the file. It is used to determine if the file  is an image by checking the extension.
 function getExtension($str) {
         $i = strrpos($str,".");
         if (!$i) { return ""; }
         $l = strlen($str) - $i;
         $ext = substr($str,$i+1,$l);
         return $ext;
 }

//This variable is used as a flag. The value is initialized with 0 (meaning no error  found)  
//and it will be changed to 1 if an errro occures.  
//If the error occures the file will not be uploaded.
 $errors=0;
//checks if the form has been submitted
 if(isset($_POST['Submit'])) 
 {
 	//reads the name of the file the user submitted for uploading
 	$image=$_FILES['image']['name'];
 	//if it is not empty
 	if ($image) 
 	{
 	//get the original name of the file from the clients machine
 		$filename = stripslashes($_FILES['image']['name']);
 	//get the extension of the file in a lower case format
  		$extension = getExtension($filename);
 		$extension = strtolower($extension);
 	//if it is not a known extension, we will suppose it is an error and will not  upload the file,  
	//otherwise we will do more tests
 if (($extension != "jpg") && ($extension != "jpeg") && ($extension != "png") && ($extension != "gif")) 
 		{
		//print error message
 			echo '<h2>Unknown extension!</h2>';
 			$errors=1;
 		}
 		else
 		{
//get the size of the image in bytes
 //$_FILES['image']['tmp_name'] is the temporary filename of the file
 //in which the uploaded file was stored on the server
 $size=filesize($_FILES['image']['tmp_name']);

//compare the size with the maxim size we defined and print error if bigger
if ($size > MAX_SIZE*91024)
{
	echo '<h2>You have exceeded the size limit!</h2>';
	$errors=1;
}

//we will give an unique name, for example the time in unix time format
$image_name=time().'.'.$extension;
//the new name will be containing the full path where will be stored (images folder)
$newname="images/".$image_name;
//we verify if the image has been uploaded, and print error instead
$copied = copy($_FILES['image']['tmp_name'], $newname);
if (!$copied) 
{
	echo '<h2>Copy unsuccessfull!</h2>';
	$errors=1;
}}}}

//If no errors registred, print the success message
 if(isset($_POST['Submit']) && !$errors) 
 {
 		
	$sellerid = $_SESSION['Seller_id'];

$con = mysql_connect("localhost","XXX","XXX");
if (!$con)
  {
  die('Could not connect: ' . mysql_error());
  }

mysql_select_db("XXXXXX", $con);

$sql="UPDATE property
SET Prop_image_address='$newname'
WHERE Prop_owner_id='$sellerid'";

if (!mysql_query($sql,$con))
  {
  die('Error: ' . mysql_error());
  }
echo "<h2>Your Photo Uploaded Successfully!</h2>";
mysql_close($con);
}
 ?>

Re: Upload image to folder - how can i mainpulate for severa

Posted: Wed May 19, 2010 5:03 am
by Benjamin
I've modified your code to support this. You will want to name the upload fields image_1, image_2, image_3, etc. This is not tested.

Code: Select all

<?php
//define a maxim size for the uploaded images in Kb
 define ("MAX_SIZE","100");

 # added
 define('IMAGE_UPLOADS', 6);
 # end

//This function reads the extension of the file. It is used to determine if the file  is an image by checking the extension.
 function getExtension($str) {
         $i = strrpos($str,".");
         if (!$i) { return ""; }
         $l = strlen($str) - $i;
         $ext = substr($str,$i+1,$l);
         return $ext;
 }

//This variable is used as a flag. The value is initialized with 0 (meaning no error  found)
//and it will be changed to 1 if an errro occures.
//If the error occures the file will not be uploaded.
 $errors=0;
//checks if the form has been submitted
 if(isset($_POST['Submit']))
 {
        # added
        for ($i = 0; $i < IMAGE_UPLOADS; $i++) {
            # end

            //reads the name of the file the user submitted for uploading
            #$image=$_FILES['image']['name'];
            # added
            $image=$_FILES["image_$i"]['name'];
            # end
            //if it is not empty
            if ($image)
            {
            //get the original name of the file from the clients machine
                    #$filename = stripslashes($_FILES['image']['name']);

                # added
                $filename = stripslashes($_FILES["image_$i"]['name']);
                # end
            //get the extension of the file in a lower case format
                    $extension = getExtension($filename);
                    $extension = strtolower($extension);
            //if it is not a known extension, we will suppose it is an error and will not  upload the file,
            //otherwise we will do more tests
     if (($extension != "jpg") && ($extension != "jpeg") && ($extension != "png") && ($extension != "gif"))
                    {
                    //print error message
                            echo '<h2>Unknown extension!</h2>';
                            $errors=1;
                    }
                    else
                    {
    //get the size of the image in bytes
     //$_FILES['image']['tmp_name'] is the temporary filename of the file
     //in which the uploaded file was stored on the server
     $size=filesize($_FILES['image']['tmp_name']);

    //compare the size with the maxim size we defined and print error if bigger
    if ($size > MAX_SIZE*91024)
    {
            echo '<h2>You have exceeded the size limit!</h2>';
            $errors=1;
    }

    //we will give an unique name, for example the time in unix time format
    $image_name=time().'.'.$extension;
    //the new name will be containing the full path where will be stored (images folder)
    $newname="images/".$image_name;
    //we verify if the image has been uploaded, and print error instead
    $copied = copy($_FILES['image']['tmp_name'], $newname);
    if (!$copied)
    {
            echo '<h2>Copy unsuccessfull!</h2>';
            $errors=1;
    }}}}

    //If no errors registred, print the success message
     if(isset($_POST['Submit']) && !$errors)
     {

            $sellerid = $_SESSION['Seller_id'];

    $con = mysql_connect("localhost","XXX","XXX");
    if (!$con)
      {
      die('Could not connect: ' . mysql_error());
      }

    mysql_select_db("XXXXXX", $con);

    $sql="UPDATE property
    SET Prop_image_address='$newname'
    WHERE Prop_owner_id='$sellerid'";

    if (!mysql_query($sql,$con))
      {
      die('Error: ' . mysql_error());
      }
    echo "<h2>Your Photo Uploaded Successfully!</h2>";
    mysql_close($con);
     }
}
 ?>