javascript - PHP get something from a html file, then pass something back to the original html file -


i new php, suppose, have index.html, , cal.php, in directory.

index.html:

<head>     <script>         java script here used display graphs based on cal.php calculated results     </script> </head> <body>     <form action="cal.php" method="post">         <div class="row x_title">             <div class="col-md-6">                 <h3>dashboard</h3>             </div>             <select class="form-control" id="myfileselect">                 <?php                 echo '<option>choose file</option>';                 foreach (glob('report' . '/*.csv') $file) {                     list($af, $bf) = split("/", $file, 2);                     list($filenam, $extnt) = split(".", $bf, 1);                     echo '<option value="' . $bf . '">' . $filenam . '</option>';                 }                 ?>             </select>         </div>         <input type="submit">     </form> </body>

cal.php

<?php $row = 1; if (($handle = fopen("test.csv", "r")) !== false) {     while (($data = fgetcsv($handle, 1000, ",")) !== false) {         $num = count($data);         echo "<p> $num fields in line $row: <br /></p>\n";         $row++;         ($c = 0; $c < $num; $c++) {             echo $data[$c] . "<br />\n";         }     }     fclose($handle); } $output /* pass output original html */ /* let's pass php variable $output javascript on original html */ ?>

i want post form when user hit submit, pass value cal.php, doing calculations in cal.php file, pass variable $output original html's javascript variable.

i'm kind of blank on between how php works html page.

some 1 me? or give me ideas?

using ajax can it. ajax request index.html calling cal.php cal.php should echo result wantand in success function of ajax response.


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