{"record":{"id":"597253ebf8cb3543","repo":"Intervention/image","slug":"failed-to-encode-gif-format","errorCode":null,"errorMessage":"Failed to encode gif format","messagePattern":"Failed to encode gif format","errorType":"exception","errorClass":"EncoderException","httpStatus":null,"severity":"error","filePath":"src/Drivers/Imagick/Encoders/GifEncoder.php","lineNumber":49,"sourceCode":"        $compression = Imagick::COMPRESSION_LZW;\n\n        try {\n            $imagick = clone $image->core()->native();\n            $imagick->setFormat($format);\n            $imagick->setImageFormat($format);\n            $imagick->setCompression($compression);\n            $imagick->setImageCompression($compression);\n\n            if ($this->interlaced) {\n                $imagick->setInterlaceScheme(Imagick::INTERLACE_LINE);\n            }\n\n            $result = new EncodedImage($imagick->getImagesBlob(), 'image/gif');\n            $imagick->clear();\n\n            return $result;\n        } catch (ImagickException | ImageException $e) {\n            throw new EncoderException('Failed to encode gif format', previous: $e);\n        }\n    }\n}\n","sourceCodeStart":31,"sourceCodeEnd":53,"githubUrl":"https://github.com/Intervention/image/blob/5598b9e39751c34afc5cdee84abef77f92c26f68/src/Drivers/Imagick/Encoders/GifEncoder.php#L31-L53","documentation":"The Imagick driver's GifEncoder clones the native Imagick object, sets format 'GIF' with COMPRESSION_LZW, optionally sets INTERLACE_LINE when interlaced (src/Drivers/Imagick/Encoders/GifEncoder.php:34-42), then serializes all frames with getImagesBlob(). Any ImagickException or ImageException is rethrown as EncoderException ('Failed to encode gif format') with the original as previous. GIF support is bundled in essentially every ImageMagick build, so failures usually come from resource exhaustion on animated/multi-frame images or a coder list stripped in a custom build.","triggerScenarios":"Calling toGif() (or with interlaced: true, which triggers setInterlaceScheme(INTERLACE_LINE) at GifEncoder.php:41) on the Imagick driver when the LZW/GIF coder is missing in a minimal ImageMagick build, or when serializing a large animated multi-frame image exhausts memory or exceeds ImageMagick policy limits during getImagesBlob().","commonSituations":"Encoding long GIF animations frame-by-frame in a queue worker under a low memory_limit; Alpine/static ImageMagick builds with a reduced coder list; container environments where policy.xml caps resource usage; rarely, builds compiled without LZW.","solutions":["Read $e->getPrevious()->getMessage() for the underlying ImageMagick error.","Verify coder availability with php -r \"var_dump((new Imagick())->queryFormats('GIF'));\".","For animated images, raise PHP memory_limit and the ImageMagick policy.xml memory/area limits, or reduce frame count/dimensions before encoding.","If the coder is genuinely missing, install the full distro imagemagick package and rebuild the imagick extension."],"exampleFix":"// before\n$encoded = $image->toGif(interlaced: true);\n\n// after - catch and degrade instead of shipping a 500\ntry {\n    $encoded = $image->toGif(interlaced: true);\n} catch (EncoderException $e) {\n    report($e->getPrevious()?->getMessage() ?? $e->getMessage());\n    $encoded = $image->toGif(); // retry without interlace","handlingStrategy":"try-catch","validationCode":"if (!in_array('GIF', Imagick::queryFormats('GIF'), true)) {\n    throw new RuntimeException('GIF encoding unavailable on this ImageMagick build');\n}","typeGuard":null,"tryCatchPattern":"try {\n    $encoded = $image->toGif(interlaced: $interlace);\n} catch (EncoderException $e) {\n    $reason = $e->getPrevious()?->getMessage() ?? $e->getMessage();\n    $encoded = $image->toGif(); // retry without interlace, then log $reason\n}","preventionTips":["Limit animated frame counts and dimensions before GIF encoding to bound memory use.","Free Imagick-heavy variables and run batch jobs with periodic worker restarts.","Test interlaced output once per environment - it exercises setInterlaceScheme, an extra failure point."],"tags":["gif","imagick","encode","interlace","animated-images"],"backgroundTag":"imagick-no-encode-delegate","analyzedSha":"5598b9e39751c34afc5cdee84abef77f92c26f68","analyzedAt":"2026-08-23T02:17:31.068Z","schemaVersion":2},"datasetVersion":"2026-08-23T08:06:27.607Z"}