PAD - PHP Application Driver

Callback

It's possible to put a PHP file in the directory '_callbacks' that is called back at the processing of a pad tag.
- With option 'before' the callback happens for every occurrence before the processing of the ocurrences.
- With option 'demand' the callback happens during the processing of the occurrences.

PHP
_callbacks/before.php HTML
callback/before.pad Result

<?php

  switch ($padCallback) {

    case 'init':

        $salaryTotal = 0;
        $bonusTotal  = 0;

        break;

    case 'row':

        $row ['total'] = $row ['salary'] + $row ['bonus'];

        $salaryTotal += $row ['salary'];
        $bonusTotal  += $row ['bonus'];

        break;

    case 'exit':

        $totalTotal = $salaryTotal + $bonusTotal ;

        break;

  }

?>

<table border=1>

  <tr>
    <th>Name</th>
    <th>Salary</th>
    <th>Bonus</th>
    <th>Total</th>
  </tr>
  
  {staff callback='before.php', before}

    {first}
      <tr>
        <td>Totals</td>
        <td>{$salaryTotal | %.2f}</td>
        <td>{$bonusTotal | %.2f}</td>
        <td>{$totalTotal | %.2f}</td>
      </tr>
    {/first}

    <tr align="right" bgcolor="{switch 'yellow', 'pink'}">
      <td align="left">{$name | capitalize}</td>
      <td>{$salary | %.2f}</td>
      <td>{$bonus | %.2f}</td>
      <td>{$total | %.2f}</td>
    </tr>

  {/staff}
 
</table>

Name	Salary	Bonus	Total
Totals	15000.00	1500.00	16500.00
Joe	1000.00	500.00	1500.00
Jim	2000.00	400.00	2400.00
John	3000.00	300.00	3300.00
Jack	4000.00	200.00	4200.00
Jerry	5000.00	100.00	5100.00

PHP
_callbacks/demand.php HTML
callback/demand.pad Result

<?php

  switch ($padCallback) {

    case 'init':

        $salaryTotal = 0;
        $bonusTotal  = 0;

        break;

    case 'row':

        $total = $salary + $bonus;

        $salaryTotal += $salary;
        $bonusTotal  += $bonus;

        break;

    case 'exit':

        $totalTotal = $salaryTotal + $bonusTotal ;

        break;

  }

?>

<table border=1>

  <tr>
    <th>Name</th>
    <th>Salary</th>
    <th>Bonus</th>
    <th>Total</th>
  </tr>
  
  {staff callback='demand.php', demand}

    <tr align="right" 
        bgcolor="{switch 'yellow', 'pink'}">
      <td align="left">{$name | capitalize}</td>
      <td>{$salary | %.2f}</td>
      <td>{$bonus | %.2f}</td>
      <td>{$total | %.2f}</td>
    </tr>

  {/staff}

  <tr>
    <td>Totals</td>
    <td>{$salaryTotal | %.2f}</td>
    <td>{$bonusTotal | %.2f}</td>
    <td>{$totalTotal | %.2f}</td>
  </tr>
 
</table>

Name	Salary	Bonus	Total
Joe	1000.00	500.00	1500.00
Jim	2000.00	400.00	2400.00
John	3000.00	300.00	3300.00
Jack	4000.00	200.00	4200.00
Jerry	5000.00	100.00	5100.00
Totals	15000.00	1500.00	16500.00

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