问将javascript值传递给php

EN

var textBox = document.getElementById("firstName");

var textBox2 = document.getElementById("lastName");

var theValue = textBox2.value;

for(var i=0;i<15;i++)

{
   (open php tag) $a++; (close php tag)

   for(var j=0;j<3;j++)

   {

   theArray[i][j]=

   (open php tag)

      $fp = fopen('data.csv', 'r');

      $data = array();

      $b++;

      while($row = fgetcsv($fp))

         $data[] = $row;

      echo $data[$a][$b];

   (close php tag)

   if(theArray[0][j].substring(0,1)==theValue)

      textBox.value = theArray[1][j];
}