重构和使用计数器？

Question

I have the following structure:

$text_1 = $this->getValue('value_1');
$text_2 = $this->getValue('value_2');
$text_3 = $this->getValue('value_3')

And also the following:

    foreach($text_1 as $t_1)
    {
        if(!$first)
        {
            $string_1 .= ",";

        }
        $first = false;
        $string_1 .= $t_1;
    }

    foreach($text_2 as $t_2)
    {
        if(!$first)
        {
            $string_2 .= ",";

        }
        $first = false;
        $string_2 .= $t_2;
    }

    foreach($text_3 as $t_3)
    {
        if(!$first)
        {
            $string_3 .= ",";

        }
        $first = false;
        $string_3 .= $t_3;
    }

I was wondering if this could be re-factored to use a counter, like in a for loop, to replace the _1, _2, _3 etc from my code?

Answer 1

Ok so I figured out a way of doing it:

    for ($i=1;$i<=12;$i++) {
         $choices = $this->getValue('question_'.$i);

         $serialized = "";
         $first = true;

         foreach($choices as $choice)
         {
            if(!$first)
            {
                $serialized .= ",";
            }
            $first = false;
            $serialized .= $choice;
        }

        $this->setValue('question_'.$i, $serialized);

     }

This seems to work well!