PHP - Image resizing issue when uploaded - php

Question

I'm having a hard time to make my web-application work properly. I have been trying to make my avatar not feel pushed and make it resize automatically when uploaded. I'm not the best with PHP hence why I can't do this on my own. I would appreciate if someone could help me out. That's the code of the file that is the avatar.
Best regards!
if (isset($_FILES['myfile']) && !empty($_FILES['myfile']['name'])) {
$name = $_FILES['myfile']['name'];
$tmp_name = $_FILES['myfile']['tmp_name'];
$allowed_ext = array('jpg', 'jpeg', 'png', 'gif' );
$a = explode('.', $name);
$file_ext = strtolower(end($a)); unset($a);
$file_size = $_FILES['myfile']['size'];
$path = "avatars";
if (in_array($file_ext, $allowed_ext) === false) {
$errors[] = 'Image file type not allowed';
}
if ($file_size > 2097152) {
$errors[] = 'File size must be under 2mb';
}
} else {
$newpath = $user['image_location'];
}

Answer 1

You'll require to store Uploaded Picture on your webserver
For that:
You'll Require:
move_uploaded_file()
and for resizing purpose you can use:
imagecopyresampled()
as follows:
function resizeIMG($o_img // original image
, $target_image // Resized New Image
, $newWidth, $newHeight){
// Get Original Dimensions as follows:
$original_width=imagesx($o_image); //Returns width of image
$original_height=imagesy($o_image); //Returns height of image
$tmp = imagecreatetruecolor($newWidth, $newHeight); // Create New temp. image with new dimensions
imagecopyresampled($tmp_img, $o_img, 0, 0, 0, 0, $newWidth, $newHeight, $original_width, $original_height); // Resize original image to temporary Image
imagejpeg($tmp, $target_image, $quality); // Copy temp Image to Target File for JPG images
imagedestroy($tmp); // Destroy Temporary Image.
/* Use
imagepng() instead of imagejpeg() for PNG images
imagegif() instead of imagejpeg() for GIF images
*/
}
For all these functions mentioned you'll need to enable gd_drivers for your php. By simply removing ; before line extension=php_gd2.dll if you're using windows or See this for others.
Or you can Use image_magick for php.
also do have a look at: Resize images in PHP without using third-party libraries?
hope it helps.. cheers :).