Developer
<?php
namespace Intervention\Image\Commands;
use Intervention\Image\Exception\NotReadableException;
use Intervention\Image\Exception\NotSupportedException;
class ExifCommand extends AbstractCommand
{
/**
* Read Exif data from the given image
*
* Note: Windows PHP Users - in order to use this method you will need to
* enable the mbstring and exif extensions within the php.ini file.
*
* @param \Intervention\Image\Image $image
* @return boolean
*/
public function execute($image)
{
if (!function_exists('exif_read_data')) {
throw new NotSupportedException(
"Reading Exif data is not supported by this PHP installation."
);
}
$key = $this->argument(0)->value();
// try to read exif data from image file
try {
if ($image->dirname && $image->basename) {
$stream = $image->dirname . '/' . $image->basename;
} elseif (version_compare(PHP_VERSION, '7.2.0', '>=')) {
// https://www.php.net/manual/en/function.exif-read-data.php#refsect1-function.exif-read-data-changelog
$stream = $image->stream()->detach();
} else {
// https://bugs.php.net/bug.php?id=65187
$stream = $image->encode('data-url')->encoded;
}
$data = @exif_read_data($stream);
if (!is_null($key) && is_array($data)) {
$data = array_key_exists($key, $data) ? $data[$key] : false;
}
} catch (\Exception $e) {
throw new NotReadableException(
sprintf(
"Cannot read the Exif data from the filename (%s) provided ",
$image->dirname . '/' . $image->basename
),
$e->getCode(),
$e
);
}
$this->setOutput($data);
return true;
}
}
Developer
To ensure a smooth integration process and optimal performance, follow these best practices: