[[reference()]]
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en:create:functions:reference [24.01.2015 12:47] – [Example 2] alexander.ritteren:create:functions:reference [25.03.2022 22:06] (current) – admin
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 The use of the reference can be useful if other information is encoded within it. In the following example, social scientists would have "Axxx" as a reference (e.g. A100, A201, A991), and natural scientists would have a "BXXX" reference (e.g. B100, B201, B990) in the URL. The use of the reference can be useful if other information is encoded within it. In the following example, social scientists would have "Axxx" as a reference (e.g. A100, A201, A991), and natural scientists would have a "BXXX" reference (e.g. B100, B201, B990) in the URL.
  
-Depending on the reference, question "AB01" or "AB02" will now be displayed. In order to do so, the first character of the reference has to be extracted by using ''{0}''. PHP's own function ''[[http://php.net/manual/en/function.strtoupper.php|strtoupper()]]'' ensures potential lower case letters are converted into upper case.+Depending on the reference, question "AB01" or "AB02" will now be displayed. In order to do so, the first character of the reference has to be extracted by using ''[0]''. PHP's own function ''[[http://php.net/manual/en/function.strtoupper.php|strtoupper()]]'' ensures potential lower case letters are converted into upper case.
  
 <code php> <code php>
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   // No reference submitted (less than 1 character)   // No reference submitted (less than 1 character)
   goToPage('next');   goToPage('next');
-} elseif ($ref{0} == 'A') {+} elseif ($ref[0] == 'A') {
   question('AB01');  // question for social scientists   question('AB01');  // question for social scientists
-} elseif ($ref{0} == 'B') {+} elseif ($ref[0] == 'B') {
   question('AB02');  // question for natural scientists   question('AB02');  // question for natural scientists
 } else { } else {
en/create/functions/reference.1422100042.txt.gz · Last modified: by alexander.ritter
 
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