On 11-10-01 02:03 PM, Mike Mackintosh wrote:
On Oct 1, 2011, at 1:59 PM, Ron Piggott wrote:
If $correct_answer has a value of 3 what is the correct syntax needed to use echo to display the value of $trivia_answer_3?
I know this is incorrect, but along the lines of what I am wanting to do:
echo $trivia_answer_$correct_answer;
$trivia_answer_1 = “1,000”;
$trivia_answer_2 = “1,250”;
$trivia_answer_3 = “2,500”;
$trivia_answer_4 = “5,000”;
Ron
www.TheVerseOfTheDay.info
Best bet would to toss this into either an object or array for simplification, otherwise that type of syntax would need the use of eval.
example: eval('echo $trivia_answer_'.$correct_answer.';');
best bet would be to..
$trivia_answer = array();
$trivia_answer[1] = 1000;
$trivia_answer[2] = 1250;
$trivia_answer[3] = 2500;
$trivia_answer[4] = 5000;
echo $trivia_answer[$correct_answer];
Agreed the OP's value list isn't optimal, but eval is not needed to
address the solution:
<?php
$trivia_answer_1 = "1,000";
$trivia_answer_2 = "1,250";
$trivia_answer_3 = "2,500";
$trivia_answer_4 = "5,000";
$answer
= isset( ${'trivia_answer_'.$correct_answer} )
? ${'trivia_answer_'.$correct_answer}
: 'Not found';
echo $answer."\n";
?>
Cheers,
Rob.
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