diff --git a/cgi-bin/uebung09/questions-edit.php b/cgi-bin/uebung09/questions-edit.php
index 6aa0f3c..d5aabfe 100644
--- a/cgi-bin/uebung09/questions-edit.php
+++ b/cgi-bin/uebung09/questions-edit.php
@@ -25,7 +25,13 @@ echo <<<END
     <div class="form-box">
 END;
 
-        echo('<input class="form-solution" type="radio" name="solution" value="0" required' . (($sol == 0) ? 'checked' : '') . '>');
+        if ($sol == 0) {
+                //checked
+                echo('<input class="form-solution" type="radio" name="solution" value="0" required checked >');
+        } else {
+                //unchecked
+                echo('<input class="form-solution" type="radio" name="solution" value="0" required >');
+        }
 
 echo <<<END
         <input class="form-answer" type="text" name="answer0" id="answer0" required value="$an0">
@@ -34,7 +40,14 @@ echo <<<END
     <label for="answer1">Antwort 1:</label>
     <div class="form-box">
 END;
-        echo('<input class="form-solution" type="radio" name="solution" value="1" required' . (($sol == 1) ? 'checked' : '') . '>');
+
+        if ($sol == 0) {
+                //checked
+                echo('<input class="form-solution" type="radio" name="solution" value="1" required checked >');
+        } else {
+                //unchecked
+                echo('<input class="form-solution" type="radio" name="solution" value="1" required >');
+        }
 
 echo <<<END
         <input class="form-answer"type="text" name="answer1" id="answer1" value="$an1">
@@ -43,7 +56,14 @@ echo <<<END
     <label for="answer2">Antwort 2:</label>
     <div class="form-box">
 END;
-        echo('<input class="form-solution" type="radio" name="solution" value="2" required' . (($sol == 2) ? 'checked' : '') . '>');
+        
+        if ($sol == 0) {
+                //checked
+                echo('<input class="form-solution" type="radio" name="solution" value="2" required checked >');
+        } else {
+                //unchecked
+                echo('<input class="form-solution" type="radio" name="solution" value="2" required >');
+        }
 
 echo <<<END
         <input class="form-answer" type="text" name="answer2" id="answer2" value="$an2">