WOOF :: image_from_url( String $url, String $name = "", String $dir = "", String $assume_extension = "txt" )
Returns:
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WOOF_Image
An object representing the image, which can then be manipulated.
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WOOF_Silent
An object for silent failure, if the image could not be downloaded.
Downloads an image file from the given URL if it has not been downloaded before, caches it to a directory specified, and returns an image file object representing it.
Parameters:
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The URL of the file to retrieve
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The name of the output file. If this is not specified, the function will automatically choose a name that is a hash on the URL, to guarantee its uniqueness.
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An absolute directory path to download the image to. If this is not specified, a default directory will be used.
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String $assume_extension = "txt"
The extension to assume if it cannot be inferred from the URL.