Imagick::getImageIterations

(PECL imagick 2, PECL imagick 3)

Imagick::getImageIterations — Gets the image iterations

说明

public Imagick::getImageIterations(): int

Gets the image iterations.

参数

此函数没有参数。

返回值

Returns the image iterations as an integer.

错误／异常

错误时抛出 ImagickException。

add a note

User Contributed Notes 2 notes

down

admin at zasmeshi dot ru ¶

5 years ago


If you want get the number of the animation (GIF) frames you need to use Imagick::getNumberImages()

down

holdoffhunger at gmail dot com ¶

10 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

官方地址：https://www.php.net/manual/en/imagick.getimageiterations.php

有任何技术问题请点击这里网站运营推广招聘

IT PHP 编程语言 Linux 开发编程科技 Elasticsearch HTML/CSS/XML 网络数据库 JAVA 面试 NoSQL C/C++ Golang Git 算法操作系统正则表达式 Redis 互联网 MySql JavaScript 运维软件国际架构设计 Mac OS TCP/IP Excel Vim Windows Socket Oracle VR MongoDB Python 运营 MemCache 商业硬件电子娱乐设计 nginx 摄影游戏 WordPress HTTP 团建数码电器

php7 安装fileinfo扩展 preg_split — 通过一个正则表达式分隔字符串 php位值,解决 PHP 中 usort 在值相同时改变原始位置的问题 [PHP] inet_pton/inet_ntop IP地址转换函数 PHP 8.1 [鸟哥]PHP_INT_MIN 和 -9223372036854775808 ADORecordSet对象 adodb手册 opcache预加载 Composer的Packagist资源 array_multisort() 多字段排序 PHPMailer设置utf8 PHPMailer字符集CharSet PHP json解析（json_decode）页面工具 mysql面试题 [原创]诡异的php-fpm超时问题 php中几种注释规范纯php实现DES以及TripleDES加密算法 php 修改图片大小支持php7的性能采集扩展 PHP mkdir()写出来的权限与mode值不符合

略微加速

PHP官方手册 - 互联网笔记

Imagick::getImageIterations

说明

参数

返回值

错误／异常

User Contributed Notes 2 notes