0

I am having an issue with my variables value after the IF function. I am looking to change the value of the variable depending on the outcome value of $answer1 on the sender page. However, when I print $answer1 after the IF process, the value has not changed. Before IF it is 5, after the IF process, the Print still produces a 5.

Please can someone advise me how I can increment/decrement using the IF function and affect the value of $answer1 afterwards.

Thank you.

<?php $finalvalue=5; $answer1=$_GET['answer1']; if ($answer1=="1"){$finalvalue+2;} elseif ($answer1=="2"){$finalvalue+1;} elseif ($answer1=="3"){$finalvalue-1;} elseif ($answer1=="4"){$finalvalue-2;}; print "$finalvalue" ?>
Improve this question
1
  • are you looking for somthing like $finalvalue=$finalvalue+2; and so on? Commented Nov 21, 2015 at 15:08

2 Answers 2

Reset to default
1

You need to increment on the variable. Have a look here and try the following:

$finalvalue = 5; $answer1 = $_GET['answer1']; if ($answer1 == "1") { $finalvalue += 2; } elseif ($answer1 == "2") { $finalvalue++; } elseif ($answer1 == "3") { $finalvalue--; } elseif ($answer1 == "4") { $finalvalue -= 2; } echo $finalvalue;
Improve this answer
Sign up to request clarification or add additional context in comments.

Comments

0

You are not properly updating the $finalvalue. It should be as follows - 

<?php $finalvalue=5; $answer1=$_GET['answer1']; if ($answer1=="1"){ $finalvalue = $finalvalue+2;} elseif ($answer1=="2"){ $finalvalue = $finalvalue+1;} elseif ($answer1=="3"){$finalvalue = $finalvalue-1;} elseif ($answer1=="4"){$finalvalue = $finalvalue-2;}; echo $finalvalue; ?>
Improve this answer

5 Comments

Thank you very much, this has worked, I did try something similar to this earlier however I used the ++ function and I am not sure I coded it correctly!
Thank you very much for your help
Thank you for your help earlier Chandan, I have encountered one issue with it though, on application, the last three increments of the final "else if" function have not been affecting the value or $finalvalue, is there something I should be adding to the end of my string for them to take effect? or should I be using pre incrementation as opposed to post incrementation? Please see below. thanks.
$answer5=$_GET['answer5']; if ($answer5=="17"){ $finalvalue = $finalvalue+2;} elseif ($answer1=="18"){ $finalvalue = $finalvalue+1;} elseif ($answer1=="19"){$finalvalue = $finalvalue-1;} elseif ($answer1=="20"){$finalvalue = $finalvalue-2;}; print "$finalvalue";
this should work. Can you confirm by putting echo statements in those elseif block if it is getting called ?

Start asking to get answers

Find the answer to your question by asking.

Ask question

Explore related questions

See similar questions with these tags.