[karthikanov24]

hi

In the following php funtion code, function uploadproductimage() returns an array to $images variable in funtion addproduct().


If i use print_r ($images);
or print_r($images['image']); etc..

below the line of code in addproduct() as follows:

$images = uploadProductImage('fleImage', SRV_ROOT . 'images/product/');
print_r($images)

instead,if i use ,echo $image; i get the output of $image variable..
why is to so? Could u give me the reason?

PHP Code:

function addProduct()
{
    $catId       = $_POST['cboCategory'];
    $name        = $_POST['txtName'];
    $description = $_POST['mtxDescription'];
    $price       = str_replace(',', '', (double)$_POST['txtPrice']);
    $qty         = (int)$_POST['txtQty'];
    
    $images = uploadProductImage('fleImage', SRV_ROOT . 'images/product/');


    $mainImage = $images['image'];
    $thumbnail = $images['thumbnail'];

    $sql   = "INSERT INTO tbl_product (cat_id, pd_name, pd_description, pd_price, pd_qty, pd_image, pd_thumbnail, pd_date)
              VALUES ('$catId', '$name', '$description', $price, $qty, '$mainImage', '$thumbnail', NOW())";

    $result = dbQuery($sql);
    
    header("Location: index.php?catId=$catId");    
}

/*
    Upload an image and return the uploaded image name 
*/
function uploadProductImage($inputName, $uploadDir)
{
    $image     = $_FILES[$inputName];
    $imagePath = '';
    $thumbnailPath = '';
    
    // if a file is given
    if (trim($image['tmp_name']) != '') {
        $ext = substr(strrchr($image['name'], "."), 1); //$extensions[$image['type']];

        // generate a random new file name to avoid name conflict
        $imagePath = md5(rand() * time()) . ".$ext";
        
        list($width, $height, $type, $attr) = getimagesize($image['tmp_name']); 

        // make sure the image width does not exceed the
        // maximum allowed width
        if (LIMIT_PRODUCT_WIDTH && $width > MAX_PRODUCT_IMAGE_WIDTH) {
            $result    = createThumbnail($image['tmp_name'], $uploadDir . $imagePath, MAX_PRODUCT_IMAGE_WIDTH);
            $imagePath = $result;

        } else {
            $result = move_uploaded_file($image['tmp_name'], $uploadDir . $imagePath);
        }    
        
        if ($result) {
            // create thumbnail
            $thumbnailPath =  md5(rand() * time()) . ".$ext";



            $result = createThumbnail($uploadDir . $imagePath, $uploadDir . $thumbnailPath, THUMBNAIL_WIDTH);

            

            // create thumbnail failed, delete the image
            if (!$result) {
                unlink($uploadDir . $imagePath);
                $imagePath = $thumbnailPath = '';
            } else {
                $thumbnailPath = $result;
            }    
        } else {
            // the product cannot be upload / resized
            $imagePath = $thumbnailPath = '';
        }
        
    }

    
    return array('image' => $imagePath, 'thumbnail' => $thumbnailPath);
} 

Thanks,
Karthikanov24

[wirehopper]

Go to PHP: Hypertext Preprocessor and read the pages that describe echo and print_r.

[End User]

print_r() just output some human-readable info about a variable, it's not really intended to be part of a function or to be used programatically. It's more for debugging and as an aid in visualizing array structures.

[karthikanov24]

thanks a lot to all of you...i understood!

[GameFrame]

print_r() is actually for debugging out arrays or global variables. Like this way: print_r($_POST);

echo will not work with arrays. Now you should have even better picture