Variable within a variable

Mazarin

Hello,

I think this sample code will try and explain what I'm doing fairly well.. I hope..

for($i=0;$i<$papers;$i++) {
echo "Paper $i: papers[$i]\n<br>";
}

I'll explain it, just in case. On the previous page, I submitted a lost of checkboxes, with the names papers0, papers1, papers2, etc.. Depending on the results of the search, there will be a varying number of check boxes. I would like to echo out the $papers0 $papers1 $papers2 variables by cycling through them, and the total number of papers is stored in the variable $paper.

If anyone could help, I'd greatly appreciate it.

PHP-Editors_com

You should have used the checkbox name of paper[], and the value set uniquely. This way you this problem will not arise.

for example:

while($r = each($paper))  {
  echo "paper$r = ".$paper[$r];
}

Weedpacket

PHP-Editors.com's solution is simpler, easier, and faster; If the precise number makes a difference, then you can name your checkboxes paper[0], paper[1], etc. Otherwise, (as noted), calling all of them paper[] will work nicely.

If you still insist on the naming scheme you have now then you will want to look at this page.

Mazarin

I never thought of doing that, thank you!

Mazarin

Sorry, but now I get the error.

Warning: Illegal offset type in /home/careerlobby.com/public_html/process/cm_send.php on line 7
paperArray =
Warning: Illegal offset type in /home/careerlobby.com/public_html/process/cm_send.php on line 7

with line 7 being "echo "paper$r = ".$paper[$r];"

I changed the names of the checkboxes so that they would be generated as paper[0] paper[1] etc

GSHelpBoy

$r is an array, so you have to use [$i] or some other identifier.

Mazarin

I did, I was using the code posted above in this thread..

while($r = each($paper)) {
echo "paper$r = ".$paper[$r];
}

Weedpacket

Actually, foreach() would be simpler:

foreach ($paper as $key=>$value)
{ echo "paper$key = $value";
}