![]() ![]() The load_image() function accepts two parameters, the path or URL of the image file and the image type. The list() function is used to assign values to multiple variables at once. The $filename variable can contain either the path of the image or its URL. $old_image = load_image($filename, $type) List($width, $height, $type) = getimagesize($filename) Use the value of this returned constant to determine the type of image and appropriate function to use. The IMAGETYPE_XXX constants are stored at index 2 of the returned array. The width and height of the image are stored at index 0 and 1 respectively. This function returns an array with up to 7 elements. The function you use will depend on the type of image you are resizing.įirst, use the getimagesize() function to get important information about the image like its width, height and type. Loading the image will require to use different functions like The first step before you resize an image is loading it as an image resource inside the script. GD has all the necessary functions to manipulate images so you won't have to use any other 3rd party library. You can make use of the PHP's GD library to resize images in PHP. Maybe you need to resize images that your users are uploading. Maybe you have to create multiple sizes of the same image to serve on different devices. $extension = strtolower(strrchr($file, '.Many times, you have to programmatically resize images. $this->image = $this->openImage($fileName) # $resizeObj -> saveImage('images/cars/large/output.jpg', 100) Resize-class.php resizeImage(150, 100, 0) $resizeObj -> saveImage('sample-resizeda.jpg', 1000) Imagerezise.php resizeImage(200, 200, 'crop') In this variable $resizeObj = new resize('sample.png') you need to link your uploaded picture url Check read/write permissions on the directory" Make sure you chmod the directory to be writeable A common cause of file moving failures is because of bad permissions on the directory attempting to be written to $q = $conn->prepare($sql2) or die("failed!") $sql2 = "UPDATE people SET surname = (SELECT surname FROM user WHERE username=:user_id1) WHERE username=:user_id2" ![]() ![]() $q = $conn->prepare($sql1) or die("failed!") $sql1 = "UPDATE people SET firstname = (SELECT firstname FROM user WHERE username=:user_id1) WHERE username=:user_id2" $q->bindParam(':conditional', $conditional, PDO::PARAM_STR) $q->bindParam(':imagename', $imagename, PDO::PARAM_STR) $q->bindParam(':lname', $lname, PDO::PARAM_STR) $q->bindParam(':fname', $fname, PDO::PARAM_STR) $q->bindParam(':user_id', $user_id, PDO::PARAM_STR) $q->bindParam(':category', $category, PDO::PARAM_STR) $q->bindParam(':contact', $contact, PDO::PARAM_STR) $q->bindParam(':price', $price, PDO::PARAM_STR) $q = $conn->prepare($sql) or die("failed!") $sql = "insert into people (price, contact, category, username, fname, lname, expire, filename, conditional, posttime) values (:price, :contact, :category, :user_id, :fname, :lname, now() + INTERVAL 1 MONTH, :imagename, :conditional, now())" We are *not* putting the image into the database we are putting a reference to the file's location on the server NOTE: This is where a lot of people make mistakes. If (move_uploaded_file($image, $TARGET_PATH)) Lets attempt to move the file from its temporary directory to its new home $_SESSION = "A file with that name already exists" You could get past filename problems by appending a timestamp to the filename and then continuing Here we check to see if a file with that name already exists $_SESSION = "You must upload a jpeg, gif, or bmp" You check the file type instead of the extension because the extension can easily be faked Check to make sure that our file is actually an image Make sure all the fields from the form have inputs $TARGET_PATH = "img/users/$category/$user_id/" Note that there is a trailing forward slash This variable is the path to the image folder where all the images are going to be stored Grab the User ID we sent from our form How would i resize the image before or during the upload? ![]()
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