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PHP basic question about if statements and echo.?
Hey all I have a basic question. I want to have an answer page (script below) and it only it display "correct" if the person has the correct answer. My if statement with echo is not working and i cannot figure out whats wrong with it. Please tell me how to fix it.
<?php
// Set up arrays of things we want to tell people about this answer
$title[1] = "Blue";
$title[2] = "Green";
$title[3] = "Red";
$title[4] = "Purple";
$title[5] = "Orange";
$page_title = "Quiz Answer: You Are " . $title[$_GET['q1']];
$correctanswer = "c";
$answer_display = "The correct answer is 'C'";
$useranswer = $_GET['q1'];
?>
<HTML>
<HEAD>
<TITLE>
<? echo $page_title; ?>
</TITLE>
</HEAD>
<BODY>
<!--
<? echo $answer_display; ?>
//-->
<?php
if ($useranswer = $correctanswer)
{ echo "Correct!";
}
?>
<? echo $useranswer?>
<? echo correctanswer?>
<? echo htmlspecialchars($answer_display); ?>
</BODY>
</HTML>
3 Answers
- RatchetrLv 79 years agoFavorite Answer
Change this:
if ($useranswer = $correctanswer)
To this:
if ($useranswer == $correctanswer)
In PHP (and every other language derived from C), a single = means assignment, == means test for equality.
Your if statement assigns the value $correctanswer to $useranswer, then evaluates the value assigned to determine if it is true or false.
- 9 years ago
Just briefly scanning over your code when I noticed your if statement has a single equal sign. If you want to compare that the two variables are equal in PHP, you need two equal signs like this:
if($useranswer == $correctanswer)
- nimmoLv 44 years ago
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