Laravle 证件照排版

<?phpnamespace App\Http\Controllers\Api;use App\Http\Controllers\Controller;
use Illuminate\Http\Request;class PhotoController extends Controller
{// 默认配置（可被请求参数覆盖）protected $config = ['paper_width' => 1500,    // 5寸照片纸宽度 (5*300)'paper_height' => 1050,   // 5寸照片纸高度 (3.5*300)'photo_width' => 280,     // 1寸照片宽度'photo_height' => 390,    // 1寸照片高度'margin' => 50,           // 边距'spacing' => 20,          // 照片间距'photos_per_row' => 5,    // 每行照片数'rows' => 2               // 行数];public function printOneInchPhotos(Request $request){// $this->config['photo_width'] = 300;try {// 更新配置参数（从请求获取或使用默认值）$this->updateConfig($request);// 验证输入照片$photoPath = '1cun.jpg';// 创建画布$canvas = $this->createCanvas();// 加载并处理照片$photo = $this->loadAndResizePhoto($photoPath);// 在画布上排列照片$this->arrangePhotosCompact($canvas, $photo);// 输出结果return $this->outputImage($canvas);} catch (\Exception $e) {return $this->handleError($e);}}/*** 从请求更新配置*/protected function updateConfig(Request $request){$this->config = array_merge($this->config, ['paper_width' => $request->input('paper_width', $this->config['paper_width']),'paper_height' => $request->input('paper_height', $this->config['paper_height']),'photo_width' => $request->input('photo_width', $this->config['photo_width']),'photo_height' => $request->input('photo_height', $this->config['photo_height']),'margin' => $request->input('margin', $this->config['margin']),'spacing' => $request->input('spacing', $this->config['spacing']),'photos_per_row' => $request->input('photos_per_row', $this->config['photos_per_row']),'rows' => $request->input('rows', $this->config['rows'])]);}/*** 紧凑排列照片*/protected function arrangePhotosCompact($canvas, $photo){// 计算总使用宽度和高度$totalWidth = $this->config['photos_per_row'] * $this->config['photo_width'] + ($this->config['photos_per_row'] - 1) * $this->config['spacing'];$totalHeight = $this->config['rows'] * $this->config['photo_height'] + ($this->config['rows'] - 1) * $this->config['spacing'];// 计算起始位置(居中)$startX = ($this->config['paper_width'] - $totalWidth) / 2;$startY = ($this->config['paper_height'] - $totalHeight) / 2;// 排列照片for ($row = 0; $row < $this->config['rows']; $row++) {for ($col = 0; $col < $this->config['photos_per_row']; $col++) {$x = $startX + $col * ($this->config['photo_width'] + $this->config['spacing']);$y = $startY + $row * ($this->config['photo_height'] + $this->config['spacing']);imagecopy($canvas, $photo,$x, $y,0, 0,$this->config['photo_width'], $this->config['photo_height']);}}imagedestroy($photo);}/*** 创建画布*/protected function createCanvas(){$canvas = imagecreatetruecolor($this->config['paper_width'], $this->config['paper_height']);$white = imagecolorallocate($canvas, 255, 255, 255);imagefill($canvas, 0, 0, $white);return $canvas;}/*** 加载并调整照片尺寸*/protected function loadAndResizePhoto($path){$photo = @imagecreatefromjpeg($path);if (!$photo) {throw new \RuntimeException("无法加载照片，可能不是有效的JPEG文件");}// 调整照片尺寸$resized = imagecreatetruecolor($this->config['photo_width'], $this->config['photo_height']);imagecopyresampled($resized, $photo,0, 0, 0, 0,$this->config['photo_width'], $this->config['photo_height'],imagesx($photo), imagesy($photo));imagedestroy($photo);return $resized;}/*** 验证照片路径*/protected function validatePhotoPath($path){if (empty($path)) {throw new \InvalidArgumentException("未提供照片路径");}$fullPath = storage_path('app/public/' . ltrim($path, '/'));if (!file_exists($fullPath)) {throw new \RuntimeException("照片文件不存在: " . $path);}return $fullPath;}/*** 输出图像*/protected function outputImage($canvas){ob_start();imagejpeg($canvas, null, 95);$imageData = ob_get_clean();imagedestroy($canvas);return response($imageData)->header('Content-Type', 'image/jpeg')->header('Content-Disposition', 'inline; filename="photo_print.jpg"');}/*** 错误处理*/protected function handleError(\Exception $e){$errorImage = imagecreatetruecolor(600, 100);$bgColor = imagecolorallocate($errorImage, 255, 255, 255);$textColor = imagecolorallocate($errorImage, 255, 0, 0);imagefill($errorImage, 0, 0, $bgColor);$lines = str_split($e->getMessage(), 80);foreach ($lines as $i => $line) {imagestring($errorImage, 5, 10, 20 + $i * 20, $line, $textColor);}ob_start();imagejpeg($errorImage);$imageData = ob_get_clean();imagedestroy($errorImage);return response($imageData)->header('Content-Type', 'image/jpeg')->header('Content-Disposition', 'inline; filename="error.jpg"');}
}

路由

Route::get('cun','Api\PhotoController@printOneInchPhotos');