note 126859 added to imagick.getimagealphachannel

From: Date: Thu, 17 Feb 2022 08:54:00 +0000
Subject: note 126859 added to imagick.getimagealphachannel
Groups: php.notes 
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You want to check wether an image has an alpha channel? But you have no control which Imagick Version is used? Background: Method available since ImageMagick 6.4.0 Method returns boolean instead of int since 6.9.x Example: $image= new Imagick(); $image->readImage($source_file); $imageHasAlphaChannel = (method_exists($image, 'getImageAlphaChannel') && ($document->getImageAlphaChannel() === \Imagick::ALPHACHANNEL_ACTIVATE || $document->getImageAlphaChannel() === true)); ---- Server IP: 45.112.84.4 Probable Submitter: 80.90.5.135 (proxied: 217.91.239.72) ---- Manual Page -- https://php.net/manual/en/imagick.getimagealphachannel.php Edit -- https://main.php.net/note/edit/126859 Del: integrated -- https://main.php.net/note/delete/126859/integrated Del: useless -- https://main.php.net/note/delete/126859/useless Del: bad code -- https://main.php.net/note/delete/126859/bad+code Del: spam -- https://main.php.net/note/delete/126859/spam Del: non-english -- https://main.php.net/note/delete/126859/non-english Del: in docs -- https://main.php.net/note/delete/126859/in+docs Del: other reasons-- https://main.php.net/note/delete/126859 Reject -- https://main.php.net/note/reject/126859 Search -- https://main.php.net/manage/user-notes.php

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