Imagick::pingImageFile

(PECL imagick 2.0.0)

Imagick::pingImageFileGet basic image attributes in a lightweight manner

说明

bool Imagick::pingImageFile ( resource $filehandle [, string $fileName ] )

This 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以上版本编译时可用。

参数

filehandle

An open filehandle to the image.

fileName

Optional filename for this image.

返回值

成功时返回 TRUE

范例

Example #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);
?>

参见

add a note add a note

User Contributed Notes

There are no user contributed notes for this page.
To Top