Well, that's the thing, the string is filled from some external input source and I have no idea what type of data is in it. All I know is how many bytes it contains and how many I need to extract from it. Most likely it will contain arbitrary binary data like a JPEG or tarball, however, it may also contain 8 bit ISO Latin-1 and even Unicode, which means substr() won't work right and will end up extracting entire multi-byte characters instead of just bytes.

In reply to Re: Re: How do I safely, portably extract one or more bytes from a string? by Anonymous Monk
in thread How do I safely, portably extract one or more bytes from a string? by Anonymous Monk

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