Imagick::getImageLength

(PECL imagick 2, PECL imagick 3)

Imagick::getImageLength — Returns the image length in bytes

说明

public Imagick::getImageLength(): int

Returns the image length in bytes

参数

此函数没有参数。

返回值

Returns an int containing the current image size.

示例

示例 #1 Using Imagick::getImageLength():

Getting image length in bytes

<?php
$image = new Imagick('test.jpg');
echo $image->getImageLength() . ' bytes';
?>

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seb dot gibbs at ymail dot com ¶

1 year ago

Quite often a jpeg image blob filesize will grow when reading back the image blob data!

eg.

$img = new Imagick();
$img->readImage($filename);

$sizeA = $img->getImageLength();
$blobdata = $img->getImageBlob();
$sizeB = $img->getImageLength();

Quite often sizeB will be greater than sizeA depending on the jpeg image being read