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This article mainly introduces the statistics of questionnaire survey results using PHP. Interested friends can refer to it. I hope it will be helpful to everyone.
Background:
Due to specific work reasons, I made a paper questionnaire. The main content of the questionnaire is to ask users to answer their requirements ( Numbered A, B....) for priority sorting, so the results I got were hundreds of results similar to A>I>H>G>D.... and so on.
Goal:
Conduct a quantitative evaluation of this requirement based on the user's ranking results. The final result is expected to be A:, B:, C:.... ., to find out which elements are relatively important and others are relatively unimportant.
Method:
According to the ranking of the numbers, assign different weights, count all the results, and summarize these weights. For example: The result "ABCDEFGHIJ" means that item A gets points, item J gets points, and item D gets points.
Knowledge points:
File reading; looping; associative array; array sorting.
php code:
$rs =array("A"=>,"B"=>,"C"=>,"D"=>,"E"=>,"F"=>,"G"=>,"H"=>,"I"=>,"J"=>); $handle = fopen('./file.txt', 'r'); while(!feof($handle)) { $string = fgets($handle, ); for($i=;$i<strlen($string);$i++) { $t = strtoupper($string[$i]); if(isset($rs[$t])) $rs[$t] = $rs[$t]+ strlen($string) - $i; } } fclose($handle); arsort($rs); var_dump($rs);
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