Re: ++ bug or unexpected behaviour

Well, in a perfect world, most operations on NULL have undefined results. In PHP they happen to be defined because of a downwards compatibility issue, but you shouldn't draw any conclusions from that... At 22:08 10/06/2000, waldschrott wrote:

That´s the point. I thought ++ would change the type too, because NULL++ results in 1... Zeev Suraski wrote:

It is; For downwards compatibility, $foo++ when $foo is NULL results in 1. Zeev On Sat, 10 Jun 2000, Jade Nicoletti wrote:

On Sat, Jun 10, 2000 at 07:18:01PM +0300, Zeev Suraski wrote:

On Sat, 10 Jun 2000, waldschrott wrote:

I think "$t++" and "$t=$t+1" should produces the same results,

shouldn´t > > > they?

No. ++ means increment, while not changing type. $foo+1 means an

arithmetic addition of one, which always results in a conversion to a number. Is NULL not it's own type? ;)) [NULL++ results in (int) 1] -Jade.

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