(PECL imagick 2, PECL imagick 3)
Imagick::pingImageFile — Get basic image attributes in a lightweight manner
$filehandle, string $fileName = ?): boolThis method can be used to query image width, height, size, and format without reading the whole image to memory. 此方法在Imagick基于ImageMagick 6.2.9以上版本編譯時(shí)可用。
filehandleAn open filehandle to the image.
fileNameOptional filename for this image.
成功時(shí)返回 true。
示例 #1 Using Imagick::pingImageFile()
Opening a remote location
<?php
/* fopen a remote location */
$fp = fopen("http://example.com/test.jpg");
/* create new imagick object */
$im = new Imagick();
/* pass the handle to imagick */
$im->pingImageFile($fp);
?>