本文整理汇总了PHP中exif_thumbnail函数的典型用法代码示例。如果您正苦于以下问题：PHP exif_thumbnail函数的具体用法？PHP exif_thumbnail怎么用？PHP exif_thumbnail使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。
在下文中一共展示了exif_thumbnail函数的15个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的PHP代码示例。
示例1: thumb_href
private function thumb_href($source_path, $width, $height)
{
if (!file_exists($source_path)) {
return null;
}
$name = 'thumb-' . sha1($source_path) . '-' . $width . 'x' . $height . '.jpg';
$thumb_path = $this->thumbs_path . '/' . $name;
$thumb_href = $this->thumbs_href . '/' . $name;
if (!file_exists($thumb_path) || filemtime($source_path) >= filemtime($thumb_path)) {
$image = new Image();
$et = false;
if ($this->setup->get('HAS_PHP_EXIF') && $this->context->query_option('thumbnails.exif', false) === true && $height != 0) {
$et = @exif_thumbnail($source_path);
}
if ($et !== false) {
file_put_contents($thumb_path, $et);
$image->set_source($thumb_path);
$image->normalize_exif_orientation($source_path);
} else {
$image->set_source($source_path);
}
$image->thumb($width, $height);
$image->save_dest_jpeg($thumb_path, 80);
}
return file_exists($thumb_path) ? $thumb_href : null;
}示例2: thumb_href
private function thumb_href($source_abs_path, $mode, $width, $height)
{
if (!file_exists($source_abs_path)) {
return null;
}
if (!is_dir($this->thumbs_path)) {
@mkdir($this->thumbs_path, 0755, true);
}
$name = "thumb-" . sha1("{$source_abs_path}-{$width}-{$height}-{$mode}") . ".jpg";
$thumb_abs_path = $this->thumbs_path . "/" . $name;
$thumb_abs_href = $this->thumbs_href . "/" . $name;
if (!file_exists($thumb_abs_path) || filemtime($source_abs_path) >= filemtime($thumb_abs_path)) {
$image = new Image();
$et = false;
$opts = $this->app->get_options();
if ($opts["thumbnails"]["exif"] === true && function_exists("exif_thumbnail")) {
$et = @exif_thumbnail($source_abs_path);
}
if ($et !== false) {
file_put_contents($thumb_abs_path, $et);
$image->set_source($thumb_abs_path);
$image->normalize_exif_orientation($source_abs_path);
} else {
$image->set_source($source_abs_path);
}
$image->thumb($mode, $width, $height);
$image->save_dest_jpeg($thumb_abs_path, 80);
}
return file_exists($thumb_abs_path) ? $thumb_abs_href : null;
}示例3: thumb_href
private function thumb_href($source_path, $width, $height)
{
if (!file_exists($source_path)) {
return null;
}
$name = "thumb-" . sha1("{$source_path}") . "-" . $width . "x" . $height . ".jpg";
$thumb_path = $this->thumbs_path . "/" . $name;
$thumb_url = $this->thumbs_href . "/" . $name;
if (!file_exists($thumb_path) || filemtime($source_path) >= filemtime($thumb_path)) {
$image = new Image();
$et = false;
$opts = $this->app->get_options();
if (HAS_PHP_EXIF && $opts["thumbnails"]["exif"] === true && $height != 0) {
$et = @exif_thumbnail($source_path);
}
if ($et !== false) {
file_put_contents($thumb_path, $et);
$image->set_source($thumb_path);
$image->normalize_exif_orientation($source_path);
} else {
$image->set_source($source_path);
}
$image->thumb($width, $height);
$image->save_dest_jpeg($thumb_path, 80);
}
return file_exists($thumb_path) ? $thumb_url : null;
}示例4: __construct
function __construct($image, $isfile = false)
{
if (!empty($image) || $this->filename !== null) {
if (is_readable($this->filename) && function_exists('exif_thumbnail') && in_array(image_type_to_mime_type(exif_imagetype($this->filename)), array('image/jpeg', 'image/tiff'))) {
$this->thumb = @exif_thumbnail($this->filename);
if (trim($this->thumb) == "") {
$this->thumb = NULL;
}
}
$this->classname = get_class($this);
if ($isfile) {
$this->filename = $image;
} else {
$this->data = $image;
}
}
}示例5: ExtractEXIFgetImageSize
function ExtractEXIFgetImageSize()
{
if ($this->getimagesizeinfo = @GetImageSize($this->sourceFilename)) {
$this->source_width = $this->getimagesizeinfo[0];
$this->source_height = $this->getimagesizeinfo[1];
if (function_exists('exif_thumbnail') && $this->getimagesizeinfo[2] == 2) {
// Extract EXIF info from JPEGs
$this->exif_thumbnail_width = '';
$this->exif_thumbnail_height = '';
$this->exif_thumbnail_type = '';
// The parameters width, height and imagetype are available since PHP v4.3.0
if (phpthumb_functions::version_compare_replacement(phpversion(), '4.3.0', '>=')) {
$this->exif_thumbnail_data = @exif_thumbnail($this->sourceFilename, $this->exif_thumbnail_width, $this->exif_thumbnail_height, $this->exif_thumbnail_type);
} else {
// older versions of exif_thumbnail output an error message but NOT return false on failure
ob_start();
$this->exif_thumbnail_data = exif_thumbnail($this->sourceFilename);
$exit_thumbnail_error = ob_get_contents();
ob_end_clean();
if (empty($exit_thumbnail_error) && !empty($this->exif_thumbnail_data)) {
if ($gdimg_exif_temp = $this->ImageCreateFromStringReplacement($this->exif_thumbnail_data, false)) {
$this->exif_thumbnail_width = ImageSX($gdimg_exif_temp);
$this->exif_thumbnail_height = ImageSY($gdimg_exif_temp);
$this->exif_thumbnail_type = 2;
// (2 == JPEG) before PHP v4.3.0 only JPEG format EXIF thumbnails are returned
unset($gdimg_exif_temp);
} else {
$this->ErrorImage('Failed - $this->ImageCreateFromStringReplacement($this->exif_thumbnail_data) in ' . __FILE__ . ' on line ' . __LINE__);
}
}
}
}
// see if EXIF thumbnail can be used directly with no processing
if (!empty($this->exif_thumbnail_data)) {
while (true) {
if (!empty($this->xto)) {
if (isset($this->w) && $this->w != $this->exif_thumbnail_width) {
break;
}
if (isset($this->h) && $this->h != $this->exif_thumbnail_height) {
break;
}
$CannotBeSetParameters = array('sx', 'sy', 'sh', 'sw', 'bw', 'bg', 'bc', 'usa', 'usr', 'ust', 'wmf', 'wmp', 'wmm', 'wma');
foreach ($CannotBeSetParameters as $parameter) {
if (!empty($this->{$parameter})) {
break 2;
}
}
}
if (!empty($this->xto) && empty($this->phpThumbDebug)) {
// write cached file
$ImageTypesLookup = array(2 => 'jpeg');
// EXIF thumbnails are (currently?) only availble from JPEG source images
if (is_dir($this->config_cache_directory) && is_writable($this->config_cache_directory) && isset($ImageTypesLookup[$this->exif_thumbnail_type])) {
$cache_filename = $this->GenerateCachedFilename($ImageTypesLookup[$this->exif_thumbnail_type]);
if (is_writable($cache_filename)) {
if ($fp_cached = @fopen($cache_filename, 'wb')) {
fwrite($fp_cached, $this->exif_thumbnail_data);
fclose($fp_cached);
}
}
}
if ($mime_type = ImageTypeToMIMEtype($this->exif_thumbnail_type)) {
header('Content-type: ' . $mime_type);
echo $this->exif_thumbnail_data;
exit;
} else {
$this->ErrorImage('ImageTypeToMIMEtype(' . $this->exif_thumbnail_type . ') failed in ' . __FILE__ . ' on line ' . __LINE__);
}
}
break;
}
}
if ($this->config_max_source_pixels > 0 && $this->source_width * $this->source_height > $this->config_max_source_pixels) {
// Source image is larger than would fit in available PHP memory
if (!empty($this->exif_thumbnail_data)) {
// EXIF thumbnail exists, and will be use as source image
$this->gdimg_source = $this->ImageCreateFromStringReplacement($this->exif_thumbnail_data);
$this->source_width = $this->exif_thumbnail_width;
$this->source_height = $this->exif_thumbnail_height;
// override allow-enlarging setting if EXIF thumbnail is the only source available
// otherwise thumbnails larger than the EXIF thumbnail will be created at EXIF size
$this->config_output_allow_enlarging = true;
} else {
// EXIF thumbnail is unavailable
// if ImageMagick is installed, use it to thumbnail,
// otherwise no choice but to abort
if ($this->ImageMagickThumbnailToGD()) {
// excellent, we have a thumbnail
} else {
$this->ErrorImage('Source image is more than ' . sprintf('%1.1f', $this->config_max_source_pixels / 1000000) . ' megapixels - insufficient memory.' . "\n" . 'EXIF thumbnail unavailable.');
}
}
}
}
return true;
}示例6: auth
// access a file in a user's directory
require_once $_SERVER['DOCUMENT_ROOT'] . '/include/main_func.php';
auth();
$file = IMAGEBASEDIR . $_GET['file'];
preg_match("/^\\d{1,11}\\//", $_GET['file'], $project);
$project = str_replace('/', '', $project[0]);
$user = $_SESSION['user_id'];
// apply your logic here
$userCanDownloadThisFile = in_array($project, $_SESSION['projects']);
if (file_exists($file) && $userCanDownloadThisFile && underPath($file)) {
$ext = pathinfo($file, PATHINFO_EXTENSION);
if (array_key_exists('thumb', $_GET) && in_array($ext, array('jpg', 'gif', 'png')) && filesize($file) > 5000) {
header('Content-Type: image/jpeg');
if ($ext == 'jpg') {
echo exif_thumbnail($file);
} else {
if ($ext == 'png' || $ext == 'gif') {
$img = $ext == 'png' ? imagecreatefrompng($file) : imagecreatefromgif($file);
$width = imagesx($img);
$height = imagesy($img);
$new_height = 100;
$new_width = $width * $new_height / $height;
$thumb_img = imagecreatetruecolor($new_width, $new_height);
imagecopyresampled($thumb_img, $img, 0, 0, 0, 0, $new_width, $new_height, $width, $height);
imagedestroy($img);
imagejpeg($thumb_img);
imagedestroy($thumb_img);
}
}
} else {示例7: dirname
<?php
/*
test1.jpg is a 1*1 image that does not contain any Exif/Comment information
test2.jpg is the same image but contains Exif/Comment information and a
copy of test1.jpg as a thumbnail.
*/
$infile = dirname(__FILE__) . '/test1.jpg';
echo md5_file($infile) . '_' . filesize($infile);
$thumb = exif_thumbnail(dirname(__FILE__) . '/test2.jpg');
echo " == ";
echo md5($thumb) . '_' . strlen($thumb);
echo "\n";示例8: Header
<?php
Header('Content-type: image/tiff');
echo exif_thumbnail('p0004557.jpg');示例9: basename
$target_path = $target_path . basename($_FILES['archivo']['name']);
if (move_uploaded_file($_FILES['archivo']['tmp_name'], $target_path)) {
$jsondata['success'] = "El archivo " . basename($_FILES['archivo']['name']) . " ha sido subido";
} else {
$jsondata['error'] = error_get_last();
//echo "Ha ocurrido un error, trate de nuevo!";
}
$archivador = "./images/" . $jsondata['nombre_archivo'];
//$v_imagen = $target_path.$_FILES['archivo']['name'];
$v_imagen = "../images/" . $jsondata['nombre_archivo'];
$jsondata['v_imagen'] = $v_imagen;
// Generar thumbnail.
$v_ancho_imagen = 1234;
$v_alto_imagen = 800;
$v_tipo_imagen = 'jpg';
$v_thumbnail = exif_thumbnail($v_imagen, $v_ancho_imagen, $v_alto_imagen, $v_tipo_imagen);
$v_exif = exif_read_data($v_imagen);
$v_longitud = getGps($v_exif["GPSLongitude"], $v_exif['GPSLongitudeRef']);
$v_latitud = getGps($v_exif["GPSLatitude"], $v_exif['GPSLatitudeRef']);
$jsondata['latitud'] = "La latitud de la imagen es: " . $v_latitud;
$jsondata['longitud'] = "La longitud de la imagen es: " . $v_longitud;
$query = "INSERT INTO TIO_IMAGENES(direccion_imagen,latitud_imagen,longitud_imagen) VALUES('{$archivador}',{$v_latitud},{$v_longitud})";
if ($conn->query($query) === TRUE) {
$jsondata['success'] = "El archivo se ha subido correctamente al servidor";
} else {
$jsondata['success'] = "Error al subir archivo: " . $conn->error;
}
function getGps($exifCoord, $hemi)
{
$degrees = count($exifCoord) > 0 ? gps2Num($exifCoord[0]) : 0;
$minutes = count($exifCoord) > 1 ? gps2Num($exifCoord[1]) : 0;示例10: extractEmbeddedThumbnail
/**
* Extracts the embedded thumbnail picture of a jpeg or tiff image
*
* @return string thumbnail
*/
protected function extractEmbeddedThumbnail()
{
if (!function_exists('exif_thumbnail')) {
return false;
}
$width = $height = $type = 0;
$thumbnail = @exif_thumbnail($this->sourceFile, $width, $height, $type);
if ($thumbnail && $type && $width && $height) {
// resize the extracted thumbnail again if necessary
// (normally the thumbnail size is set to 160px
// which is recommended in EXIF >2.1 and DCF)
$this->mimeType = image_type_to_mime_type($type);
if (!$this->checkSize($width, $height)) {
// get temporary file name
$this->sourceFile = FileUtil::getTemporaryFilename('thumbnail_');
// create tmp file
$tmpFile = new File($this->sourceFile);
$tmpFile->write($thumbnail);
$tmpFile->close();
unset($thumbnail, $tmpFile);
// resize tmp file again
return $this->makeThumbnail(true);
}
return $thumbnail;
}
return false;
}示例11: getThumbnail
public function getThumbnail()
{
return exif_thumbnail($this->sFilename);
}示例12: loadExifThumbnail
/**
* Load exif thumbnail
* We can load thumbnail only if we want because in loadExifData() in
* function read_exif_data() parameter $read_thumbnail = false
*/
protected function loadExifThumbnail()
{
if (is_array($this->exifData) && array_key_exists('THUMBNAIL', $this->exifData)) {
// read an exif data
// exif_thumbnail($filename, $width, $height, $imagetype)
$this->exifThumbnail = exif_thumbnail($this->file, $this->tnWidth, $this->tnHeight, $this->tnType);
}
}示例13: exif_thumbnail
<?php
if (array_key_exists('file', $_REQUEST)) {
$image = exif_thumbnail($_REQUEST['file'], $width, $height, $type);
} else {
$image = false;
}
if ($image !== false) {
header('Content-type: ' . image_type_to_mime_type($type));
echo $image;
exit;
} else {
// no thumbnail available, handle the error here
echo 'No thumbnail available';
}示例14: exif_thumbnail
<?php
$filename = 'test/images/test1pix.jpg';
$image = exif_thumbnail($filename, $width, $height, $type);
if ($image !== false) {
header('Content-type: ' . image_type_to_mime_type($type));
var_dump($width, $height, $type);
} else {
echo 'No thumbnail available';
}示例15: _resizeTo
/**
* Resize this image and save the output as another File object.
*
* This is used on conjunction with getPreview* and getQuickPreview.
* QuickPreview creates the destination file in the correct directory
* and getPreview* methods request the actual resizing.
*
* @param Filestore\File $file The destination file
* @param int $width Width of the final image (in px)
* @param int $height Height of the final image (in px)
* @param string $mode Mode (part of the geometry)
*/
private function _resizeTo(Filestore\File $file, $width, $height, $mode){
if(!$this->isImage()){
// :/
return;
}
\Core\Utilities\Logger\write_debug('Resizing image ' . $this->getFilename('') . ' to ' . $width . 'x' . $height . $mode);
$m = $this->getMimetype();
// Make sure the directory of the destination file exists!
// By touching the file, Core will create all parent directories as necessary.
$file->putContents('');
if($m == 'image/gif' && exec('which convert 2>/dev/null')){
// The GIF resizer handles EVERYTHING :)
// Granted of course, that imagemagick's convert is available on the server.
$resize = escapeshellarg($mode . $width . 'x' . $height);
exec('convert ' . escapeshellarg($this->getFilename()) . ' -resize ' . $resize . ' ' . escapeshellarg($file->getFilename()));
\Core\Utilities\Logger\write_debug('Resizing complete (via convert)');
return;
}
// Traditional resizing logic.
switch ($m) {
case 'image/jpeg':
$thumbType = 'JPEG';
$thumbWidth = $width;
$thumbHeight = $height;
if($width <= 200 && $height <= 200 && function_exists('exif_thumbnail')){
// Try to write out from the thumbnail img instead of the full size.
// This is done to increase server performance.
// eg: resizing a 5MB JPEG can take upwards of 50-100ms,
// whereas the embedded thumbnail will take only 2-10ms.
// Not to mention professional JPEG management tools such as PS and Gimp
// produce marginally higher-quality thumbnails than GD will.
// (The resulting filesize is negligible.)
// Of course if the requested image is larger than a thumbnail size, (200x200 in this case),
// using the thumbnail is counter-productive!
$img = exif_thumbnail($this->getFilename(), $thumbWidth, $thumbHeight, $thumbType);
if($img){
\Core\Utilities\Logger\write_debug('JPEG has thumbnail data of ' . $thumbWidth . 'x' . $thumbHeight . '!');
$file->putContents($img);
$img = imagecreatefromjpeg($file->getFilename());
}
else{
$img = imagecreatefromjpeg($this->getFilename());
}
}
else{
$img = imagecreatefromjpeg($this->getFilename());
}
break;
case 'image/png':
$img = imagecreatefrompng($this->getFilename());
break;
case 'image/gif':
$img = imagecreatefromgif($this->getFilename());
break;
default:
// Hmmm...
\Core\Utilities\Logger\write_debug('Resizing complete (failed, not sure what it was)');
return;
}
if ($img) {
$sW = imagesx($img);
$sH = imagesy($img);
$nW = $sW;
$nH = $sH;
switch($mode){
// Standard mode, images are scaled down (only) while preserving aspect ratio
case '':
case '<':
if ($nW > $width) {
$nH = $width * $sH / $sW;
$nW = $width;
}
if ($nH > $height) {
$nW = $height * $sW / $sH;
$nH = $height;
}
//.........这里部分代码省略.........