Using the PHP Questionnaire survey results statistics

This article mainly introduces the use of PHP Questionnaire survey results Statistics, interested in the friend's reference, I hope to be helpful to everyone.

Background:

Because of the specific work, I made a paper questionnaire, the main content of the questionnaire is to allow users to request the item (number A, A, b ...). ) to prioritize, so I get a good hundreds of copies similar to A>i>h>g>d .... and other results.

Goal:

Based on the user's sequencing results to quantify this requirement, the final result would be a:,b:,c: ... to find out which one is relatively important, while others are relatively unimportant.

Practice:

According to the number of ranked position, to assign a different weight, statistics all the results, the weights are summarized. For example, the result of "Abcdefghij" indicates that a is a sub-item, j is a sub-item, and D is divided.

Knowledge Points:

file read; loop; associative array; array sort.

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);

Summary : The above is the entire content of this article, I hope to be able to help you learn.

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