MINI

files >> C:/siak/app/ktpel/upload_foto.php
 <?php

$nik = isset($_POST['nik']) ? trim($_POST['nik']) : '';

if (!preg_match('/^[0-9]{16}$/', $nik)) {
    die('NIK tidak valid.');
}

if (!isset($_FILES['foto'])) {
    die('Foto belum dipilih.');
}

$file = $_FILES['foto'];

if ($file['error'] !== UPLOAD_ERR_OK) {
    die('Upload foto gagal.');
}

$allowed = array(
    'image/jpeg',
    'image/jpg',
    'image/png'
);

if (!in_array($file['type'], $allowed)) {
    die('Format foto harus JPG atau PNG.');
}

if ($file['size'] > 5 * 1024 * 1024) {
    die('Ukuran foto maksimal 5 MB.');
}

$folder = __DIR__ . '/uploads/foto/';

if (!is_dir($folder)) {
    mkdir($folder, 0777, true);
}

$target = $folder . $nik . '.jpg';

/*
 * Simpan JPEG
 */
$imageInfo = getimagesize($file['tmp_name']);

if (!$imageInfo) {
    die('File bukan gambar yang valid.');
}

switch ($imageInfo[2]) {

    case IMAGETYPE_JPEG:

        $image = imagecreatefromjpeg(
            $file['tmp_name']
        );

        break;

    case IMAGETYPE_PNG:

        $image = imagecreatefrompng(
            $file['tmp_name']
        );

        break;

    default:

        die('Format gambar tidak didukung.');
}

if (!$image) {
    die('Gagal membaca gambar.');
}

/*
 * Resize maksimum
 */
$width  = imagesx($image);
$height = imagesy($image);

$maxWidth  = 600;
$maxHeight = 800;

$ratio = min(
    $maxWidth / $width,
    $maxHeight / $height,
    1
);

$newWidth  = (int)($width * $ratio);
$newHeight = (int)($height * $ratio);

$newImage = imagecreatetruecolor(
    $newWidth,
    $newHeight
);

imagecopyresampled(
    $newImage,
    $image,
    0,
    0,
    0,
    0,
    $newWidth,
    $newHeight,
    $width,
    $height
);

imagejpeg(
    $newImage,
    $target,
    90
);

imagedestroy($image);
imagedestroy($newImage);

header(
    'Location: index.php?nik=' .
    urlencode($nik)
);

exit;