PHP getimagesizefromstring函数代码示例

 private function GetImageObjectFromString()
 {
     $this->ImageSize = getimagesizefromstring($this->PostField);
     if ($this->ImageSize) {
         $this->ImageObject = imagecreatefromstring($this->PostField);
     }
 }

 public function testGetImage()
 {
     $client = static::makeClient(true);
     $file = __DIR__ . "/Fixtures/files/uploadtest.png";
     $originalFilename = 'uploadtest.png';
     $mimeType = "image/png";
     $image = new UploadedFile($file, $originalFilename, $mimeType, filesize($file));
     $client->request('POST', '/api/temp_images/upload', array(), array('userfile' => $image));
     $response = json_decode($client->getResponse()->getContent());
     $property = "@id";
     $imageId = $response->image->{$property};
     $uri = $imageId . "/getImage";
     $client->request('GET', $uri);
     $this->assertEquals("image/png", $client->getResponse()->headers->get("Content-Type"));
     $imageSize = getimagesizefromstring($client->getResponse()->getContent());
     $this->assertEquals(51, $imageSize[0]);
     $this->assertEquals(23, $imageSize[1]);
     $iriConverter = $this->getContainer()->get("api.iri_converter");
     $image = $iriConverter->getItemFromIri($imageId);
     /**
      * @var $image TempImage
      */
     $this->getContainer()->get("partkeepr_image_service")->delete($image);
     $client->request('GET', $uri);
     $this->assertEquals(404, $client->getResponse()->getStatusCode());
 }

 /**
  * {@inheritdoc}
  */
 public static function getImagesInfo(array $urls, array $config = null)
 {
     $client = isset($config['client']) ? $config['client'] : new Client(['defaults' => static::$config]);
     $result = [];
     // Build parallel requests
     $requests = [];
     foreach ($urls as $url) {
         if (strpos($url['value'], 'data:') === 0) {
             if ($info = static::getEmbeddedImageInfo($url['value'])) {
                 $result[] = array_merge($url, $info);
             }
             continue;
         }
         $requests[] = $client->createRequest('GET', $url['value']);
     }
     // Execute in parallel
     $responses = Pool::batch($client, $requests);
     // Build result set
     foreach ($responses as $i => $response) {
         if ($response instanceof RequestException) {
             continue;
         }
         if (($size = getimagesizefromstring($response->getBody())) !== false) {
             $result[] = ['width' => $size[0], 'height' => $size[1], 'size' => $size[0] * $size[1], 'mime' => $size['mime']] + $urls[$i];
         }
     }
     return $result;
 }

 /**
  * 上传图片
  * @throws Exception
  */
 function post_upload_action()
 {
     $redirect = false;
     if (empty($_FILES['image']['tmp_name'])) {
         if (!isset($_POST['image'])) {
             throw new Exception('hapn.u_notfound');
         }
         $content = $_POST['image'];
     } else {
         $content = file_get_contents($_FILES['image']['tmp_name']);
         $redirect = true;
     }
     if (!getimagesizefromstring($content)) {
         throw new Exception('image.u_fileIllegal');
     }
     $start = microtime(true);
     $imgApi = new StorageExport();
     $info = $imgApi->save($content);
     ksort($info);
     Logger::trace(sprintf('upload cost:%.3fms', (microtime(true) - $start) * 1000));
     if ($redirect) {
         $this->response->redirect('/image/upload?img=' . $info['img_id'] . '.' . $info['img_ext']);
     } else {
         $this->request->of = 'json';
         $this->response->setRaw(json_encode($info));
     }
 }

 function check($files)
 {
     $result = true;
     /**
      * Check if the screenshots.png file exists.
      */
     $this->increment_check_count();
     if (!$this->file_exists($files, 'screenshot.png')) {
         $this->add_error('screenshot', "The theme doesn't include a screenshot.png file.", BaseScanner::LEVEL_BLOCKER);
         // We don't have a screenshot, so no further checks.
         return $result = false;
     }
     /**
      * We have screenshot, check the size.
      */
     $this->increment_check_count();
     $png_files = $this->filter_files($files, 'png');
     foreach ($png_files as $path => $content) {
         if ('screenshot.png' === basename($path)) {
             $image_size = getimagesizefromstring($content);
             $message = '';
             if (880 != $image_size[0]) {
                 $message .= ' The width needs to be 880 pixels.';
             }
             if (660 != $image_size[1]) {
                 $message .= ' The height needs to be 660 pixels.';
             }
             if (!empty($message)) {
                 $this->add_error('screenshot', 'The screenshot does not have the right size.' . $message, BaseScanner::LEVEL_BLOCKER);
                 $result = false;
             }
         }
     }
     return $result;
 }

 /**
  * 根据url获取远程图片的的基本信息
  * @param $path_url String 需要获取的图片的url地址
  * @return array|bool false-出错，否则返回基本信息数字
  */
 public static function getOnlineImageInfo($path_url)
 {
     $ch = curl_init();
     curl_setopt($ch, CURLOPT_URL, $path_url);
     curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
     curl_setopt($ch, CURLOPT_AUTOREFERER, 1);
     curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 10);
     curl_setopt($ch, CURLOPT_ENCODING, 'gzip,deflate');
     if (preg_match('/^https.*/', $path_url)) {
         curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
         curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, true);
     }
     $content = curl_exec($ch);
     curl_close($ch);
     if ($content == false) {
         return false;
     }
     $info = array();
     $info['img_url'] = $path_url;
     $info['size'] = strlen($content);
     $info['md5'] = md5($content);
     $size = @getimagesizefromstring($content);
     if ($size) {
         $info['width'] = $size[0];
         $info['height'] = $size[1];
         $info['type'] = $size[2];
         $info['mime'] = $size['mime'];
     } else {
         return false;
     }
     return $info;
 }

 public function __construct(string $imagedata)
 {
     if (!extension_loaded('gd') || !function_exists('gd_info')) {
         throw new ImageException('GD extension not available');
     }
     $this->data = imagecreatefromstring($imagedata);
     $this->info = getimagesizefromstring($imagedata);
 }

 /**
  * @param string $binaryImageData
  * @return mixed[]
  */
 private function getImageInfo(string $binaryImageData) : array
 {
     $imageInfo = @getimagesizefromstring($binaryImageData);
     if (false === $imageInfo) {
         throw new InvalidBinaryImageDataException('Failed to get image info.');
     }
     return $imageInfo;
 }

 private function updateImageString($imageString)
 {
     $this->imageString = $imageString;
     $info = getimagesizefromstring($this->imageString);
     $this->width = $info[0];
     $this->height = $info[1];
     $this->type = exif_imagetype();
 }

 /**
  * Compatibilito override of \getimagesizefromstring() function.
  * For versions lower than php-5.4 this function does not exists, thus we must replace
  * it with \getimagesize and a stream.
  *
  * @param $string
  * @return mixed
  */
 protected function getimagesizefromstring($string)
 {
     if (function_exists('getimagesizefromstring')) {
         return getimagesizefromstring($string);
     } else {
         return getimagesize("data://plain/text;base64," . base64_encode($string));
     }
 }

 public static function isValidImageData($imageData = null)
 {
     if (!$imageData) {
         return false;
     }
     $imageInfo = getimagesizefromstring($imageData);
     return !($imageInfo === false);
 }

 function upload_base64($encode, $filename, $coord, $e)
 {
     $upload_dir = wp_upload_dir();
     $upload_path = str_replace('/', DIRECTORY_SEPARATOR, $upload_dir['path']) . DIRECTORY_SEPARATOR;
     $decoded = base64_decode($encode);
     $hashed_filename = md5($filename . microtime()) . '_' . $filename;
     header('Content-Type: image/png');
     //header png data sistem
     $img = imagecreatefromstring($decoded);
     //imagen string
     list($w, $h) = getimagesizefromstring($decoded);
     //obtenemos el tamaño real de la imagen
     $w_m = 800;
     // estandar
     $h_m = 600;
     // estandar
     $wm = $h * ($w_m / $h_m);
     //calculo para obtener el width general
     $hm = $w * ($h_m / $w_m);
     // calculo para obtener el height general
     $i = imagecreatetruecolor($w_m, $h_m);
     // aplicamos el rectangulo 800x600
     imagealphablending($i, FALSE);
     // obtenemos las transparencias
     imagesavealpha($i, TRUE);
     // se guarda las transparencias
     imagecopyresampled($i, $img, 0, 0, $coord->x, $coord->y - 27, $wm, $hm, $wm, $hm);
     // corta la imagen
     imagepng($i, $upload_path . $hashed_filename);
     imagedestroy($img);
     // file_put_contents($upload_path . $hashed_filename, $decoded );
     if (!function_exists('wp_handle_sideload')) {
         require_once ABSPATH . 'wp-admin/includes/file.php';
     }
     if (!function_exists('wp_get_current_user')) {
         require_once ABSPATH . 'wp-includes/pluggable.php';
     }
     if (!function_exists("wp_generate_attachment_metadata")) {
         require_once ABSPATH . 'wp-admin/includes/image.php';
     }
     if (!function_exists("wp_get_image_editor")) {
         require_once ABSPATH . 'wp-includes/media.php';
     }
     $file = array();
     $file['error'] = '';
     $file['tmp_name'] = $upload_path . $hashed_filename;
     $file['name'] = $hashed_filename;
     $file['type'] = 'image/png';
     $file['size'] = filesize($upload_path . $hashed_filename);
     $file_ = wp_handle_sideload($file, array('test_form' => false));
     $attachment = array('post_mime_type' => $file_['type'], 'post_title' => basename($filename), 'post_content' => '', 'post_status' => 'inherit');
     $attach_id = wp_insert_attachment($attachment, $file_['file']);
     $attach_data = wp_generate_attachment_metadata($attach_id, $file_['file']);
     wp_update_attachment_metadata($attach_id, $attach_data);
     //  $edit = wp_get_image_editor( $upload_path . $hashed_filename);
     // print_r($edit);
     return $attach_id;
 }

 public function testServeResizeCrop()
 {
     //Both height and width with crop
     $url = Image::url($this->imagePath, 300, 300, array('crop' => true));
     $response = $this->call('GET', $url);
     $this->assertTrue($response->isOk());
     $sizeManipulated = getimagesizefromstring($response->getContent());
     $this->assertEquals($sizeManipulated[0], 300);
     $this->assertEquals($sizeManipulated[1], 300);
 }

 /**
  * @dataProvider frameDimensionsProvider
  */
 public function testImageIsInscribedIntoLandscapeFrame(int $frameWidth, int $frameHeight)
 {
     $imageStream = file_get_contents(__DIR__ . '/../fixture/image.jpg');
     $strategy = new GdInscribeStrategy($frameWidth, $frameHeight, 0);
     $result = $strategy->processBinaryImageData($imageStream);
     $resultImageInfo = getimagesizefromstring($result);
     $this->assertEquals($frameWidth, $resultImageInfo[0]);
     $this->assertEquals($frameHeight, $resultImageInfo[1]);
     $this->assertEquals('image/jpeg', $resultImageInfo['mime']);
 }

 /**
  * Creates an Info from a string of image data.
  *
  * @param string $data A string containing the image data
  *
  * @return Info
  */
 public static function createFromString($data)
 {
     $info = @getimagesizefromstring($data);
     if ($info === false) {
         throw new IOException('Failed to get image data from string');
     }
     $file = sprintf('data://%s;base64,%s', $info['mime'], base64_encode($data));
     $exif = static::readExif($file);
     return static::createFromArray($info, $exif);
 }