How can one resize and save an uploaded image to a different directory using PHP?

To resize and save an uploaded image to a different directory using PHP, you can use the GD library functions to manipulate the image. First, upload the image using move_uploaded_file() function, then use imagecreatefromjpeg(), imagecreatefrompng() or imagecreatefromgif() to create an image resource. Resize the image using imagecopyresampled() function and save it to a different directory using imagejpeg(), imagepng() or imagegif(). 

$uploadDir = 'uploads/';
$resizeDir = 'resized/';
$filename = $_FILES['file']['name'];
$uploadFile = $uploadDir . $filename;
$resizeFile = $resizeDir . $filename;

move_uploaded_file($_FILES['file']['tmp_name'], $uploadFile);

list($width, $height) = getimagesize($uploadFile);
$newWidth = 100; // Set new width
$newHeight = ($height / $width) * $newWidth;

$src = imagecreatefromjpeg($uploadFile);
$dst = imagecreatetruecolor($newWidth, $newHeight);

imagecopyresampled($dst, $src, 0, 0, 0, 0, $newWidth, $newHeight, $width, $height);

imagejpeg($dst, $resizeFile);

imagedestroy($src);
imagedestroy($dst);

Keywords

PHP image resizing file upload save image directory path

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