(PECL imagick 2.0.0)
Imagick::pingImageBlob — Quickly fetch attributes
This method can be used to query image width, height, size, and format without reading the whole image to memory. 이 메쏘드는 Imagick을 ImageMagick 6.2.9 이상으로 컴파일 했을 때만 사용할 수 있습니다.
A string containing the image.
성공시에 TRUE를 반환합니다.
Example #1 Using Imagick::pingImageBlob()
Pinging an image from a string
<?php
/* read image contents */
$image = file_get_contents("test.jpg");
/* create new imagick object */
$im = new Imagick();
/* pass the string to the imagick object */
$im->pingImageBlob($image);
/* output image width and height */
echo $im->getImageWidth() . 'x' . $im->getImageHeight();
?>