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PHP: Calling a function and passing a value to a variable?
I need to add a statement to the end of this script that calls the checkgrade() function and passes to it the value from the grade form variable. I have the form etc already programmed out, and I have a rough idea how to do this but I'm a little confused if I am on the right path or not. Here is my code, and how I think the statement should be written, but I would like another opinion or two before I try and finalise it on the server:
<?php
function checkGrade($Grade) {
switch ($Grade) {
case "A":
echo "Your grade is excellent.";
break;
case "B":
echo "Your grade is good.";
break;
case "C":
echo "Your grade is fair.";
break;
case "D":
echo "You are barely passing.";
break;
case "F":
echo "You failed.";
break;
default:
echo "You did not enter a valid letter grade.";
}
?>
statement:
function checkGrade($_GET["Grade"]
I have an HTML form I am using that has the Get action from this php, with a single text input named Grade.
oops sorry missed a bracket on the end of the statement there.
The code validates according to W3C.
rb, I get an error in line 34 saying incorrect parsing.
I edited it to this:
function checkGrade($_GET["Grade"])// Call the function
$Grade = $_GET["Grade"];//pass the value from the form variable
echo "<p>$Grade</p>";
which then gave me an error in line 33.
Ok its now telling me it is expecting a ")" in line 30, everything else is right but I don't seem to be missing a bracket, what am I missing?
2 Answers
- rbjollyLv 51 decade agoFavorite Answer
Unfortunately, I did not check the code before I posted the first time. I had to add the "case" keyword for option C and drop the function keyword where I called the checkGrade function. This was easy enough to see when I copied the code into Netbeans. If you don't already use Netbeans, you might want to give it a try. See source link (there is a specific download version for PHP).
<?php
function checkGrade($Grade) {
switch ($Grade) {
case "A":
$msg = "Your grade is excellent.";
break;
case "B":
$msg = "Your grade is good.";
break;
case "C":
$msg = "Your grade is fair.";
break;
case "D":
$msg = "You are barely passing.";
break;
case "F":
$msg = "You failed.";
break;
default:
$msg = "You did not enter a valid letter grade.";
break;
}
return $msg;
}
// *** Now call your function.
if (isset($_GET["Grade"])) {
$grade = $_GET["Grade"];
echo(checkGrade($grade));
} else {
echo("Error. No grade selected.");
}
?>
Source(s): Netbeans IDE: http://netbeans.org/features/php/
