WildGoose Posted May 2, 2006 Share Posted May 2, 2006 I want to build a series of very simple pages as an exercise, where a variable is passed via a form from one page to the next, where a calculation is performed on the variable's numeric value, and then passed via a form to a third page. I can't seem to get it to work. The first page--I'll call it q1.php--has something like this:[code]<html><body><form action="q2.php" method="post"><p><b>1. Choose an option:</b><br><input type="radio" name="q1" value="Increment"> Increment <br><input type="radio" name="q1" value="NoIncrement"> No Increment<br><br><input type="submit" value="Go to the next page"></form></body></html>[/code]Then, on the second page (q2.php):[code] <?php$score = 0;$q1 = $_POST['q1'];if ($_POST['q1'] == 'Increment')$score++;?><html><body><form action="result.php" method="post"><p><b>2. Choose an option:</b><br><input type="radio" name="q2" value="Increment"> Increment <br><input type="radio" name="q2" value="NoIncrement"> No Increment<br><input type="hidden" name="score" value="<? $_POST['score']; ?>"><br><input type="submit" value="Go to the next page"></form></body></html>[/code]And finally, the result page (result.php):[code] <?php$score = $_POST['score'];$q2 = $_POST['q2'];if ($_POST['q2'] == 'Increment')$score++;?><html><body><?phpecho '<b>The number of increments was ' . $score . '</b><br><br>';?></body></html>[/code]So, starting at q1.php, this little trio of pages asks whether the user wants to increment twice. Then on the third page, what I WANT it to do is display the number of times the user told it to increment. However, it doesn't; it says there was only one increment if the user chose that option on q2.php, and the variable $score is NULL if no increment is selected on q2. I know this is probably completely elementary, but I'm new at this.What am I doing wrong here? Link to comment https://forums.phpfreaks.com/topic/8870-passing-variables/ Share on other sites More sharing options...
OOP Posted May 2, 2006 Share Posted May 2, 2006 Hi there,in the second form try to do this....change the following :[code]<input type="hidden" name="score" value="<? $_POST['score']; ?>">[/code]to this:[code]<input type="hidden" name="score" value="<? $score; ?>">[/code]regards Link to comment https://forums.phpfreaks.com/topic/8870-passing-variables/#findComment-32540 Share on other sites More sharing options...
WildGoose Posted May 3, 2006 Author Share Posted May 3, 2006 Thanks, OOP. Unfortunately, that had no effect in the result. Link to comment https://forums.phpfreaks.com/topic/8870-passing-variables/#findComment-32814 Share on other sites More sharing options...
WildGoose Posted May 3, 2006 Author Share Posted May 3, 2006 I tried changing the POSTs to GETs so that I could easily see the variable values being passed. Interestingly, the URL of the third page ends in:result.php?q2=Increment&score="score" has no value. Is that a clue as to what might be happening here? Link to comment https://forums.phpfreaks.com/topic/8870-passing-variables/#findComment-32820 Share on other sites More sharing options...
WildGoose Posted May 3, 2006 Author Share Posted May 3, 2006 I figured it out!I had to change this:[code]<input type="hidden" name="score" value="<? $score; ?>">[/code]to this:[code]<input type="hidden" name="score" value="<? echo $score; ?>">[/code]I guess I assumed the echo was implied, but apparently it has to be there. Link to comment https://forums.phpfreaks.com/topic/8870-passing-variables/#findComment-32862 Share on other sites More sharing options...
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