Re: Using $HTTP_POST_VARS

On Fri, 05 Jan 2001, Todd Cary wrote: > $HTTP_POST_VARS contains variables like cans_1=a,cans_2=c,cans_3=b *and* > sans_1=a,sand_2=d,sans_3=a. > > I want to take all of the cans_x variables and put them into an array > keyed on the 1,2,3. For example, MyArray1 would contain from the above > example $MyArray1[1]=>a,$MyArray1[2]=>c,$MyArray1[3]=>b. > > Then I want to do the same with the sans_x variables. This is so I can > compare the values to see if they are the same. For example, does > $MyArray1[1]==$MyArray2[1]? > > Can this be done? Can a wildcard be used to get all variables like > "cans_..."? this is probably a FAQ. but i'm not sure since i haven't read the FAQ yet :). the simple way would be to not use cans_* and sans_* variables in there. instead, use an array, e.g. <input name="cans[1]" value="xxx"> if you do that for all the cans_* variables, in PHP you'll have a $cans array in HTTP_POST_VARS. just grab the array entries ($cans[1], $cans[2], etc). do the same for sans. if you want to do it the hard way for some reason, it wouldn't be hard to write a program that scans through $HTTP_POST_VARS for variables of a certain pattern and write them into an array, e.g. /* warning, code written in email client, untested pattern would be something like "cans_" or "sans_" or whatever. */ function myFunc($pattern) { global $HTTP_POST_VARS; $keys=array_keys($HTTP_POST_VARS); $ret=array(); $patlen=strlen($pattern); // or use while(each(....)) or something. for($ctr=0;$ctr<count($keys);$ctr++) { $k=$keys[$ctr]; /* warning, probably off by one errors there :). actually, you should probably use regexps or sscanf there. or write more code to make it more robust. this is just a demo OTTOMH*/ if(substr($k,0,$patlen)==$pattern) { // yeah, and there too :). $nx=(int)substr($k,$patlen+1); $ret[$nx]=$HTTP_POST_VARS[$key]; } } return $ret; } in the caller, you could then just assign to whatever, e.g., $cans=myFunc("cans_"); $sans=myFunc("sans_"); this works in apache. no idea if it works in other web servers. probably does though. tiger -- Gerald Timothy Quimpo tiger@kami.com http://members.xoom.com/TigerQuimpo entia non sunt multiplicanda veritas liberabit vos praetere necessitatem mene sakhet ur-seveh