$urldecode(<url-encoded-text>)

This function performs the reverse-rfc3986 transformation on <url-encoded-text>. Each byte of input in <url-encoded-text> is copied to the output, except that when the 0x25 value (“%”) is found followed by two hexidecimal digits (0-9 or A-F), those three characters are converted into the corresponding byte.

For example, “%20” in the <url-encoded-text> is replaced with a space.

Unfortunately, because everything in the client is done as a C string, if the <url-encoded-text> contains a nul, or an encoded nul (“%00”), you won't see any data after that point.

This function has been superceded by xform which has a URL transform.

This can be used to de-mangle text that has been passed through $urlencode().

The input <url-encoded-text> with url-encoded-sequences substituted for the equivalent punctuation mark.