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Add getExtension() method - helps with uploaded file renaming #336

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Add getExtension() method - helps with uploaded file renaming #336

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22 changes: 22 additions & 0 deletions src/claviska/SimpleImage.php
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Original file line number Diff line number Diff line change
Expand Up @@ -603,6 +603,28 @@ public function getMimeType(): string
return $this->mimeType;
}

/**
* Gets the corresponding extension for the current MIME type
*
* @throws Exception Thrown if invalid MIME type found (edge case)
*/
public function getExtension(): string
{
return match (strtolower($this->mimeType)) {
'image/jpeg' => 'jpg',
'image/png' => 'png',
'image/gif' => 'gif',
'image/webp' => 'webp',
'image/avif' => 'avif',
'image/bmp', 'image/x-ms-bmp', 'image/x-windows-bmp' => 'bmp',
//other image types supported are WAP BMP and GD's internal pics
default => throw new \Exception(
'Unsupported format: '.$this->mimeType,
self::ERR_UNSUPPORTED_FORMAT
)
};
}

/**
* Gets the image's current orientation.
*
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