Re: Problems w/ goto

On Fri, 2010-12-17 at 12:22 -0500, Robert Cummings wrote: > On 10-12-17 12:08 PM, Steve Staples wrote: > > On Fri, 2010-12-17 at 10:50 -0600, Jay Blanchard wrote: > >> [snip] > >> Thank you with your excellent help in the past. Here is another > >> puzzler.... > >> > >> I am trying to write a program that can have two(2) independent forms > >> in one PHP file. When I run the code below [from PHP - A Beginner's > >> Guide], to which I have added a second form, it freezes. Without the > >> goto statements, it runs. When it does run, it displays both forms > >> on one Web screen. What I desire is for the first form to be > >> displayed, the data entered and then the second form displayed. In > >> an actual, not test program like this one, the data in the second > >> form would be dependent on the first form. > >> > >> What did I do wrong? > >> [/snip] > >> > >> You used GOTO. > >> > >> In this case I would recommend using something like jQuery to 'hide' one > >> form until the other form is complete. PHP has sent the output to the > >> browser already, both forms are there and display when you remove the > >> GOTO. > >> > >> GOTO should never be used like this. > >> > >> GOTO should never be used. > >> > > > > Wow... that brought me back to 1990... using basic and batch files... > > I honestly didn't even know that the GOTO was still in existence, > > especially within PHP. > > > > I had to show the people in my office, and we all got a chuckle from teh > > XKCD comic in the PHP documentation for GOTO > > http://ca2.php.net/goto > > > > Steve > > I was one of the people that argued in favour of GOTO on the Internals > list a few years ago. GOTO has a use, and a very good one at that. It is > by far the most efficient construct when creating parsers or other > similar types of logic flow. The demonized GOTO of the 80s was primarily > due to jumping to arbitrary points in the code, or in the case of basic > to arbitrary line numbers in the code which had little meaning for > future readers. When used properly within a well defined scope and with > well named labels, GOTO can be a superior choice. If you think GOTO > doesn't exist in many types of software, you need only grep for it in > the C source code for PHP, MySQL, and Apache. > > Cheers, > Rob. Oh, i can see where it would be useful, i just hadn't realized it was still in existence... and the cartoon, was blown up, and put in my cubical :) RAWR!!