Question

I wrote a simple jQuery function to submit data from a textarea. The script returns the result of the computation.
I get an error saying that recievedData isn’t defined.
When debugging with firebug I can see a response.

Here’s my jQuery function.

$('#submitButton').click(
function(evt){
userCode = $('#answer').val();
$.ajax({
type : 'POST',
url : 'scripts/php/check_answer.php',
data : 'code=' + userCode,
dataType : 'text',
success : alert(recievedData)
});
evt.preventDefault;
});

And this is the php script

<?php

//sample string, to be taken as input from the user program.
$str = $_POST['code'];
//the array with the weights
$patterns = array (
    '/[:space]/' => 0, //whitespaces are free; need to add spaces too
    '/[a-zA-Z]/' => 10, //characters
    '/[0-9]/'   => 500, //digits
    '/[\+\-\/\*\%]/' => 10000, //arithmetic operators
    '/[\<\>]/' => 5000, //relational operators
    '/[\^\~\|\&]/' => 1000 , //bitwise operators
    '/[\=]/' => 250, //assignment operator
    '[\#]' => 100000 //No Macros
);

//default weight for characters not found is set here
$default_weight = 55;
$weight_total = 0;
foreach ($patterns as $pattern => $weight)
{
  $match_found =  preg_match_all ($pattern, $str, $match);
  if( $match_found )
  {
     $weight_total += $weight * $match_found;
  }
  else
  {
    //this part needs to be fixed
     $weight_total += $default_weight;
  }
}

echo $weight_total;

?>

Answer 1

Write

success:function(data){alert(data);}