WordPress高级自定义字段 - 使用数组中的选择字段和修改数组元素

Question

I'm working on a WordPress website. I am using the ACF Pro plugin. I have a select field and I want to assign a second value to each option. The first value is being used as a heading. The second is a percentage figure (at the moment just a string). This will be used as a label as well as a data-percentage value. I cant get the select values to work with my array. Here is my code.

 <h4>Qualification: <?php echo $array_test; ?></h4>

And then the array;

        <?php
            $myArray = array('$array_tests');
            $myArray[0]= '20%';
            $myArray[1]= '40%';
            $myArray[2]= '60%';
            $myArray[3]= '80%';
            $myArray[4]= '100%';

            echo "<h1> Test:";  
            echo $myArray;
            echo "<h1>";                    

        ?>

And finally using the modified array's output as a data-percentage;

<div class="skillbar clearfix" data-percent="<?php echo $myArray ?>%">

Answer 1

So i have assigned this variable to my select custom field.

$staff_qualification    = get_sub_field('qualification');

I use it for the title.

<h4>Qualification: <?php echo $staff_qualification; ?></h4>

And I created a switch so that I now have a new value assigned to each option from the dropdown select.

        <?php

        switch ($staff_qualification) {
        case "NVQ Level 1":
          $staff_qualification_percentage = 20;
          break;
        case "NVQ Level 2":
          $staff_qualification_percentage = 40;
          break;
        case "NVQ Level 3":
          $staff_qualification_percentage = 60;
          break;
        case "NVQ Level 4":
          $staff_qualification_percentage = 80;
          break;                                
        case "Degree In Childcare":
          $staff_qualification_percentage = 100;
          break;
        }                      
    ?>

And now I echo the variable used in each case as my data-percentage value.

<div class="skillbar clearfix" data-percent="<?php echo $staff_qualification_percentage; ?>%">