As the aforementioned RFC does not include any reference of encoding spaces as +, I guess using %20 is the way to go today. For example, "%20" is the percent-encoding for the binary.

Sometimes the spaces get URL encoded to the + sign, and some other times to %20. What is the difference and why should this happen?

A bit of explaining as to what that %2520 is : The common space character is encoded as %20 as you noted yourself. The % character is encoded as %25. The way you get %2520 is when.

Understanding the Context

@MetaByter I think it is more technically correct to phrase the question as "In a URL, should I encode the spaces using %20 or + in the query part of a URL?" because while the example you show.

20263-20 -20.

2020

URL%20 %20 URL%20.

Key Insights

They are indeed fools. If you look at RFC 3986 Appendix A, you will see that "space" is simply not mentioned anywhere in the grammar for defining a URL. Since it's not mentioned anywhere in the.

I am interested in knowing why '%20' is used as a space in URLs, particularly why %20 was used and why we even need it in the first place.

202020!20!=2019181716151413121110987654321=2432902008176640000.

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