PHPのお勉強！

PHP TOP
PHP 8.4.2 Released!

    Imagick::getImageIterations

    (PECL imagick 2, PECL imagick 3)

    Imagick::getImageIterations — 画像の反復を取得する

    説明

    public Imagick::getImageIterations(): int

    画像の反復を取得します。

    パラメータ

    この関数にはパラメータはありません。

    戻り値

    画像の反復を表す整数値を返します。

    エラー / 例外

    エラー時に ImagickException をスローします。

    Found A Problem?

    Learn How To Improve This Page • Submit a Pull Request • Report a Bug
    ＋add a note

    User Contributed Notes 2 notes

    up
    3
    admin at zasmeshi dot ru
    8 years ago
    If you want get the number of the animation (GIF) frames you need to use Imagick::getNumberImages()
    up
    2
    holdoffhunger at gmail dot com
    12 years ago
    By using the PHP function getImageIterations, you'll receive back a value indicating the animated nature of the image. You'll get back a '0' for a still image that is not animated (like a .BMP or a .JPEG file) and a '1' for an animated image (like an animated .GIF file).

    I have been unable to get any other results from this function, after extensive use. There is some discussion among the ImageMagick user's group saying that the Iterations should indicate the number of times an animated .Gif file repeats itself. However, it's possible that either modern browsers default the value to infinity or that this ImageMagick functionality is only available at the Linux command-line. See more at the discussion group here: http://studio.imagemagick.org/pipermail/magick-users/2002-October/005814.html

    And some sample code :

    <?php

    // Author: holdoffhunger@gmail.com

    // Imagick Type
    // ---------------------------------------------

    $imagick_type = new Imagick();

    // Open File
    // ---------------------------------------------

    $file_to_grab = "image_workshop_directory/test.gif";

    $file_handle_for_viewing_image_file = fopen($file_to_grab, 'a+');

    // Grab File
    // ---------------------------------------------

    $imagick_type->readImageFile($file_handle_for_viewing_image_file);

    // Get Image Iterations
    // (Detect Animated Image Versus Non-Animated Image)
    // ---------------------------------------------

    $image_iterations = $imagick_type->getImageIterations();

    // Print Iteration Value Interpreted
    // ---------------------------------------------

    if($image_iterations == 1)
    {
    print(    "$file_to_grab *IS* an animated image.");
    }
    else
    {
    print(    "$file_to_grab *IS NOT* an animated image.");
    }

    ?>
    ＋add a note