"no decode delegate" for 1 SVG, while all others work fine

[charlie1234]

I wrote a script which parses SVGs and breaks them down into layers, saving the individual layers as PNGs as well as the 1 original SVG as a PNG.

Ran through hundreds of SVGs without a problem, but this current file is being troublesome. I'm getting the good ol' "no decode delegate" error when I perform $image->readImageBlob() on the contents of the SVG file:

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magickException: no decode delegate for this image format `' @ error/blob.c/BlobToImage/349 in Imagick->readimageblob()

The line in my PHP script that is throwing the error is:

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$im->readImageBlob($svg_blob);

where $svg_blob is simply the result of file_get_contents('path/to/svg').

I can probably work with the content of this SVG (attached to this post) in a graphics program to get it working within the canvas of another (known working) SVG, but I am very curious what the actual problem with this file is as it's virtually identical to what I've already been using. Anyone have a clue?

[magick]

That particular SVG image is prefixed with a couple of binary characters which throws off ImageMagick such that it does not recognize the image as SVG. To fix, set the format explicitly with

• $im->setFormat('SVG');

[charlie1234]

Thanks for your help magick! How were you able to see the prefixed binary characters?